max34462 evaluation kit evaluates: max34462 · 2014-02-20 · max34462 evaluation kit evaluates:...

Evaluates: MAX34462MAX34462 Evaluation Kit

General DescriptionThe MAX34462 evaluation kit (EV kit) provides the hard-ware and software graphical-user interface (GUI) neces-sary to evaluate the MAX34462 PMBus™ 16-channel monitor/sequencer with differential inputs and margining DACs. The EV kit includes a MAX34462 installed as well as four power supplies that can be sequenced, monitored, and margined by the device.

EV Kit Contents AssembledCircuitBoardIncludingMAX34462 MiniUSBCable

Features EasyEvaluationoftheMAX34462 FourPower-SupplyChannels OneCurrent-SenseAmplifier EVKitHardwareisUSBPowered(USBCable

Included) USBHIDinterface WindowsXP®-andWindows® 7-Compatible

Software RoHSCompliant ProvenPCBLayout FullyAssembledandTested

19-6747; Rev 0; 7/13

Ordering Information appears at end of data sheet.

Windows and Windows XP are registered trademarks and registered service marks of Microsoft Corporation.PMBus is a trademark of SMIF, Inc.

MAX34462 EV Kit Photo

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www.maximintegrated.com

*EP = Exposed pad.

DESIGNATION QTY DESCRIPTIONB1 1 Black banana jack (GND)

C0A–C0D, C2A–C2D, C160,

C162, C165, C201, C202, C204

14 10µF,X5Rceramiccapacitors(0805)

C1 1 22nF,X7Rceramiccapacitor(0805)

C1A–C1D, C17, C18, C161, C164,

C203, C21410 0.01µF,X7Rceramic

capacitors (0805)

C2, C3, C4 C7–C15, C212 13 0.1µF,X7Rceramic

capacitors (0805)

C5, C6, C166, C211 4 1µF,X7Rceramiccapacitors

(0805)

C16, C20–C35, C215 0 Do not populate, ceramic

capacitors (0805)

C163 0 Donotpopulate,470µF aluminum capacitor

C213 1 220nF,X7Rceramiccapacitor(0805)

D1, D2, D22 3 SchottkydiodesD3–D9 6 RedLEDs(1206)

D20, D21 2 Red/greendualLEDsDA–DD 4 GreenLEDs(1206)

H1,J22–J24 4 4-pin headers, 2.54mm pitch

H2,H3 2 14-pin (2 x 7) headers, 2.54mm pitch

H4 1 3-pin header, 2.54mm pitchH5–H8,J21 0 Do not populate, headers

J1 1 2-pin header, 2.54mm pitchJ1A–J1D 4 Solderbridges

J20 1 5-pinfemaleMini-USB

J80–J95 0 Do not populate, solder bridges

Q1–Q4 4 nMOS(3SOT23)R0–R15,R80–R95 32 0Ω±1%resistors(0603)

R1A–R1D 4 8.66kΩ±1%resistors(0805)R2A–R2D 4 3.09kΩ±1%resistors(0805)R3A–R3D 4 49.9Ω±1%resistors(0805)R4A–R4D 4 267Ω±1%resistors(0805)R5A–R5D 4 1kΩ±1%resistors(0805)

DESIGNATION QTY DESCRIPTION

R20–R35, R116–R118,R152,R153,R162,R215,

R216

0 Do not populate, resistors (0805)

R40–R55,R126,R128,R130,R161,R164,R170–R185,

R207

38 10kΩ±1%resistors(0805)

R56–R63,R100,R102,R104,R106,R108,R110,R112,R114,R120,R133,R134,R154,R155,

R204

22 100kΩ±1%resistors(0805)

R101,R125,R127,R129,R135 5 100Ω±1%resistors(0805)

R103,R105,R107,R109,R111,R113,R115,R211,R212

9 330Ω±1%resistors(0805)

R119,R121,R122,R132,R201,R202,

R2147 0Ω±1%resistors(0805)

R123,R124,R213 3 2.2kΩ±1%resistors(0805)R131,R150, R151,R210 4 4.7kΩ±1%resistors(0805)

R160,R163,R206 3 45.3kΩ±1%resistors(0805)R165 1 0.1Ω±1%resistor(0805)

R203,R205 2 560Ω±1%resistors(0805)S1–S4 4 SPDTslideswitchesS5 1 Single-polepushbuttonswitchS6 1 12-pole DIP switchS7 1 2-pole DIP switch

S8–S11 4 4-pole DIP switchesTP1 1 Redtestpoint

TP2–TP6, TP9–TP11 8 Black test points

TP7, TP44 2 OrangetestpointsTP8, TP43 2 Yellow test points

TP27–TP42, TP100-TP116 33 Whitetestpoints

U1 1PMBus 16-channel monitor/ sequencer(100CSBGA)Maxim MAX34462EXQ+

Component List

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Quick StartRequired Equipment MAX34462EVkithardware WindowsXPorWindows7PC USBport Mini-USBcable(included)Note: In the following sections, software-related items are identified by bolding. Text in bold refers to items directly from the install or EV kit software. Text in bold and under-linedreferstoitemsfromtheWindowsoperatingsystem.

ProcedureTheEVkitisfullyassembledandtested.Followthestepsbelow to verify board operation:1) Ensurethatjumpers/shuntsonJ23andJ1areinstalled.

Note:TheGNDplanesoftheUSBI2C dongle and the EV kit are not connected. The GND jumper on J23must be connected for proper communication.

2) Ensure that the 4-pole DIP switches RSP, RSN,PSEN,andDACareintheonposition.

3) SettheEVkithardwareonanonconductivesurfacetoensure that nothing on the PCB gets shorted together.

4) Prior to starting the GUI, connect the EV kit hardware toaPCusingthesuppliedMini-USBcable,orequiva-lent.ThepowerLED(D20)shouldbegreenand thecomLED(D21)shouldberedandslowlyflashorange.

5) Windows should automatically begin installing thenecessary device driver. The USB interface of theEVkithardware isconfiguredasanHIDdeviceandtherefore does not require a unique/custom device driver. Once the driver installation is complete, aWindows message appears near the System Icon menu, indicating that the hardware is ready to use. Do not attempt to run the GUI prior to this message. If you do, you must close the application and restart it once thedriverinstallationiscomplete.OnsomeversionsofWindows,administratorprivilegesmayberequiredtoinstalltheUSBdevice.

6) Once the device driver installation is complete,visit www.maximintegrated.com/evkitsoftware to download the latest version of the EV kit software, MAX34462EVKitSoftwareInstall.ZIP.Save theEV kitsoftware to a temporary folder.

7) Openthe.ZIPfileanddouble-clickthe.EXEfiletorunthe installer. A message box stating: The publisher could not be verified. Are you sure you want to run this software? may appear. If so, click Yes.

8) The installer GUI appears. Click Next and then Install.Oncecomplete,clickClose.

9) Go to Start | All Programs. Look for theMAX34462EVKitSoftware folder and click on the MAX34462EVKitSoftware.EXEinsidethefolder.

10)When the GUI appears, the text to the left ofthe Maxim logo should display EV Kit Hardware Connected.ThecomLED(D21)ontheEVkitboardshould turn green.

Note: The .EXE file is downloaded as a .ZIP file.

*EP = Exposed pad.

FILE DESCRIPTIONMAX34462EVKitSoftwareInstall.EXE Application program


U1A–U1D, U4, U5, U22 7

500mALDOregulators (8TDFN-EP*) Maxim MAX8902BATA+

U2 1Digital temperature sensor (8SO,150mil) MaximDS75LVS+

U3 125V/V precision current-sense amplifier(SOT23)MaximMAX9938TEUK+


U20 1 Microcontroller(28SO)MicrochipPIC18LF2550-I/SO

U21 150mA to 600mA current-limit switch(6SOT23)Maxim MAX4995AAUT+

X1 1 48MHz,3.3Voscillator(SMD)AVXKC3225A48.0000C30E00

— 5 Jumpers/shunts— 1 Mini-USBcable— 1 PCB:MAX34462EVKit

Component List (continued)

MAX34462 EV Kit Files

http://www.maximintegrated.com/evkitsoftware

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Detailed Description of SoftwareSoftware StartupIf the MAX34462 EV kit is connected when the software is opened, the software first initializes the hardware tocommunicate. The software then searches for all slave addresses on the I2C bus and connects to the first valid slave address. The GUI displays EV Kit Hardware Connected to the left of the Maxim logo. If the EV kit is not connected on software startup, then the GUI populateswithdefaultEVkitvalues.Once theEVkit isconnected, the GUI executes the sequence above.

Menu and Status BarThe File menu item contains Save, Load, and Exit options. To save the current GUI configuration, click Save Project As. This saves the device name, pin names, and theRAMCRCtoanXMLfileandsavesPMBusconfigura-tionstoaHEXfile.Ifadeviceisconnected,thisreadsandsaves data directly from the device; otherwise, it saves the configuration that is currently displayed on the GUI. TheSTORE_DEAULT_ALL(11h)commandisappendedto the end of the HEX file so that the configuration issavedtothemainflashwhentheHEXfileisloaded.Load ProjectupdatestheGUIwiththeXMLfile,writestheHEXfile to the device, performs a STORE_DEFAULT_ALL(11h), and then reads current values from the device. The RAMCRCandmainflashCRCarethenreadandcom-paredtotheCRCsavedintheXMLfile.Ifadeviceisnotconnected,theHEXfileiswrittentoavirtualdevice.TheHEXfileonlycontainsdataforthePMBuscommandsthatare stored in flash. Create ReportsavesaCSVfilethatcontains all the configuration tables.The Connection menu item allows the user to connect to a desired device. Find Slave Addresses searches for all slave addresses connected to the I2C bus. To select a device, click Device1 Slave Address and all the slave addresses found are shown and are select-able.Slaveaddresses18hand34harenotselectabletoprevent communicating with the alert response address and factory-programmed address. If multiple devices are connected, then the number of devices to read/write is selected with the Number of Devices option.The Auto Polling menu item allows the user to set the automaticpollingrate.Selectthedelaybetweenreadsbychoosing 300ms, 600ms, 800ms, 1000ms, 1500ms, or 2000ms. Press the Auto Polling On button in the status bar to start the polling. Each poll reads the Power Status (STATUS_WORD 79h), Fault Status (STATUS_WORD79h), and the polled values for the Data Log Graph tab. The Status and Margining tabs are only polled if the tab is currently selected. If multiple devices are being polled, then selected polling rate options can be disabled to account for the longer time it takes to read all devices.

To stop polling, press the Auto Polling Off button on the status bar. Polling automatically stops if items in the File menu or Connection menu are selected. Polling also stops if any buttons that involve action with the NV fault log or flash are pressed.The GUI Lock menu item allows the user to safely browse a configuration by preventing all controls from writing to registers. The Clear Faults button in the status bar sends theCLEAR_FAULTS(03h)commandtoclearany faultsor warnings. To turn the power supplies on or off, select the Power On/Power Off button, which writes a value to the OPERATION (01h) command. The supplies poweron with margining off and power off based on the Power Down Action drop-down list on the Sequencing tab.

Status LogThe status log below the tabs displays all the actions that theGUIperforms.WheneveraPMBuscommandisreador written, the action is confirmed by the log. To save the log, press the Save Log button and the text in the box is saved to a .TXT file. The log can also be cleared by press-ing the Clear Log button.

Sequencing TabThe Sequencing tab sheet (Figure 1) includes all thesequence configuration and delays. All values on the tab are read when the tab is selected. The On/Off Config groupboxcontrolswritetotheON_OFF_CONFIG(02h)command to set when the power supplies sequence on or off. The power supplies can be turned on with bias, with theCONTROL0/1/2/3pin,orwiththeOPERATION(01h)command by selecting the option on the Turn Power Supplies ON drop-down list. To change the Control pins’ polarity, select the Active Low or Active High radio buttons. The channels can be powered down simultane-ously or with a TOFF delay by selecting the option inthe Power Down Action drop-down list. The SYNC pin Select radio buttons set the pin as a Master or Slave bywritingtoMFR_MODE(D1h).Toedit thesequencingtable, the Output Select on the PSEN/GPO tab must be set to Power Supply Enable (PSEN) and the Input Select on the Monitoring tab must be set to Sequence + Voltage Monitor. The Sequence On Select, Sequence Group, PG/GPI Select, and SEQ Match columns read/write toMFR_SEQ_CONFIG(E8h).ThePG/GPI Select columns can only be edited if the Sequence On Select for that channel is set to the PG/GPI combo options. To edit the SEQ Match column the Sequence On Select for that channel must be set to the SEQ Pin Match options. The sequencing delays can be set by writing values to TON Delay (TON_DELAY60h),TON Max (TON_MAX_FAULT_LIMIT 62h), TON Seq Max (MFR_TON_SEQ_MAX E6h), and TOFF Delay(TOFF_DELAY64h).

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Figure 1. MAX34462 EV Kit GUI (Sequencing Tab)

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Sequencing Graph TabThe Sequencing Graphtabsheet(Figure2)displaysthetiming diagrams for all the sequencing channels. To edit a channel’s sequencing timing, the Output Select on the PSEN/GPO tab must be set to Power Supply Enable (PSEN) and the Input Select on the Monitoring tab must be set to Sequence + Voltage Monitor.WhenthePower Up radio button is selected, the TON Delay(TON_DELAY60h) and TON Max (TON_MAX_FAULT_LIMIT 62h) values are displayed on the graph. To change TON Delay, click and drag the green vertical bar; to change TON Max, click and drag the red vertical bar. If TON Max is set to 0ms, then this limit is and the red bar are disabled. To set a precise time with the graph, click and hold the green or red vertical bar for a zoomed-in timeline. If a chan-nel issetup togenerateaSEQon theMonitoring tab, a yellow GEN tag is displayed to show which sequence is generated. The Sequence On Select column is read from the Sequencing tab.If thiscolumnissettoaSEQpinmatchoption,aSEQyellow tagappearsat the timelocation displayed in the Event Tag column. If there is a GENtagthatmatchestheSEQtag,theSEQtagislinedup with the GEN tag to have the same time. If there is notaGENtagthatmatchestheSEQtag,thetagcanbemoved to a location where the user expects this signal to occur by dragging the yellow tag or editing the value in the Event Tag column. If the Sequence On Select is set to a PG/GPI combo option, the PG/GPI Select columns on the Sequencing tab are read to see which channel combination triggers the sequence. If any of these checked channels are set to GPI in the Input Select column on the Monitoring tab, a yellow GPI tag appears at the time location in the Event Tag column, which can be edited. If the checked channels are not set to GPI, a PG yellow tag appears.ThisPGtag isplacedat the lastTONDelaytooccur in the checked channels. The Power Down graph displays the TOFF Delay(TOFF_DELAY64h)andcanbechanged by clicking and dragging the green vertical bar. To view more of the time in the diagram, click and drag the timeline at the bottom, or use the zooming controlsin the upper right-hand corner. To change the order of

the channels, press the Sort By Time button or the Sort By Device button formultipledevices.When inSortByDevice mode, the channels can be reordered by clicking and dragging the gripper box in the upper left-hand corner of the channel row. The sequencing graph also has the ability to detect circular dependance errors.

Monitoring TabThe Monitoring tab sheet (Figure 3) displays the fault/warn limit settings for each channel and for each tempera-ture sensor. To read the settings, click on the Monitoring tab and all the values are automatically read. To write to a value, click on the corresponding cell, type in a valid value, and either click another cell or press Enter on the keyboard. In the VOLTAGE and CURRENT table, the Input Select and SEQ Generate columns write to MFR_CHANNEL_CONFIG (E4h). Some columns mightbe grayed out depending on what is selected in the Input Select column. The Nominal and V Ratio columns are calculated based on a nominal ADC level of 1.8V to set the VOUT_SCALE_MONITOR (2Ah). The resistive V Ratio is found by dividing 1.8V by the Nominal value. The C GaincolumnwritestoIOUT_CAL_GAIN(38h)tosettheratio of the voltage at the ADC input to the sensed current. The fault/warn limits can be set by entering the voltage/current level or the percent of the nominal in the UV Fault (VOUT_UV_FAULT_LIMIT 44h),UV Warn (VOUT_UV_WARN_LIMIT43h),OV Warn (VOUT_OV_WARN_LIMIT42h), OV Fault (VOUT_OV_FAULT_LIMIT40h),PG On (POWER_GOOD_ON 5Eh), PG Off (POWER_GOOD_OFF5Fh),OC Warn (IOUT_OC_WARN_LIMIT46h), orOC Fault (IOUT_OC_FAULT_LIMIT 4Ah) columns. Inthe TEMPERATURE table, the sensors can be enable/disabled in the Enable column, which writes to a bit in MFR_TEMP_SENSOR_CONFIG F0h). The OT warn/fault limits can be set by entering a value in the OT Warn (OT_WARN_LIMIT51h)orOT Fault (OT_FAULT_LIMIT4Fh) columns. The ADC and averaging settings canbe adjusted with the ADC Conversion Time, ADC Averaging, or IOUT Averaging drop-down lists, which all writetoMFR_MODE(D1h).

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Figure 2. MAX34462 EV Kit GUI (Sequencing Graph Tab)

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Figure 3. MAX34462 EV Kit GUI (Monitoring Tab)

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PSEN/GPO TabThe PSEN/GPOtabsheet(Figure4)setsthefunctionofthePSENnpins.TheOutput Select, PG/GPI or Alarm Channel Select, and PSEN/GPO Output Type columns write to bits in the MFR_PSEN_CONFIG (D2h) com-mand. Output Select sets the function of the PSENnpin and the PSEN/GPO Output Type column sets the output logic of the pin. The PG/GPI or Alarm Channel Select, TON Delay(TON_DELAY60h)andTOFF Delay (TOFF_DELAY64h)columnscanonlybeeditedwhentheOutput Select is set to PG/GPI Combination or ALARM.

DAC/GPO TabThe DAC/GPO tab sheet (Figure 5) sets the functionof theDACandGPOpins.All the columns in theDACtablewrite to theMFR_DAC_CONFIG (E9h) command.TheGPOtableonthebottomwrites to theMFR_GPO_CONFIG (F8h).TheOutput Select sets the function of theDACorGPOpinandtheOutput Type sets the output logic of the pin. The PG/GPI or Alarm Channel Select, ON Delay, and OFF Delay columns can only be edited when the Output Select is set to PG/GPI Combination or ALARM.

Fault Config TabThe Fault Config tab sheet (Figure 6) contains all thefault configuration settings. The Fault Retry time sets the valueinMFR_FAULT_RETRY(DAh).Thefaultconfigura-tiontablewritestoachannel’sMFR_FAULT_RESPONSE(D9h). To edit a channel’s configuration, the Input Select on the Monitoring tab must be set to monitor voltage or

current. To edit the FAULT Pin Assertion or FAULT Pin Response columns, set the Global column to Global.

Margining TabThe Marginingtabsheet(Figure7)includesthemarginconfigurations, margin fault status, and a DAC calculator.All values on the tab are read when the tab is selected. To edit a channel’s margin options, the Output Select on the PSEN/GPO tab must be set to Power Supply Enable (PSEN) and the Input Select on the Monitoring tab must be set to Sequence + Voltage Monitor.Forchan-nels 0–11, the Output Select on the DAC/GPO tab must also be set to DAC Operation. The Margin column turns the margin on/off by writing to the OPERATION (01h)command. To force all the channels to the same margin, select the state in the Margin All Control drop-down list. The Slope, Open Loop, and DAC Value configure theDACnoutputsbywritingbits in theMFR_MARGIN_CONFIG (DFh) command. Themargining limits can beset by entering the voltage level or the percent of the nominal in the Margin Low (VOUT_MARGIN_LOW26h)and Margin High(VOUT_MARGIN_HIGH25h)columns.Whenthemarginingisturnedon,themarginfaultstatusis shown in the Status columnreadfromSTATUS_MFR_SPECIFIC(80h).ThePolled column displays the chan-nel voltage read fromREAD_VOUT (8Bh). To read theStatus and Polled values, press the Read Status and Vout button or turn on polling with the Auto Polling On button. The margin faults can be cleared by pressing the Clear Faults button in the status bar.

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Figure 4. MAX34462 EV Kit GUI (PSEN/GPO Tab)

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Figure 5. MAX34462 EV Kit GUI (DAC/GPO Tab)

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Figure 6. MAX34462 EV Kit GUI (Fault Config Tab)

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Figure 7. MAX34462 EV Kit GUI (Margining Tab)

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The DAC Calculator is used to find the series resistance (R3)andDACvalue.Theequationsusedtocalculatetheoutputs are given in Table 1.

Status TabThe Status tab sheet (Figure 8) displays all the faults,warning, and device ID information. To read all the output values, faults, and warnings, press the Read Device 1 Status button or turn on polling with the Auto Polling On button. The fault and warning bits are read from STATUS_VOUT (7Ah), STATUS_IOUT (7Bh), STATUS_MFR_SPECIFIC (80h), and STATUS_TEMPERATURE(7Dh). The Polled values are read from READ_VOUT(8Bh),READ_IOUT (8Ch), andREAD_TEMPERATURE(8Dh). Each color indicator turns green if the status is good, red if there is a fault, or yellow to indicate a warn-ing. The Polled value might not reflect the fault or warning because some bits are latches and have to be cleared. To clear the faults and warnings, press the Clear Faults button in the status bar to send the CLEAR_FAULTS(03h) command. The Time Count displays the 32-bit counter read from the MFR_TIME_COUNT (DDh) command. The ID COMMANDS table displays all the ID information of the device. Press the Read ID button to read all the commands in the table.

Data Log Graph TabThe Data Log Graph tab sheet (Figure 9) plots thepolled values in a graph and keeps track of the mini-mum and maximum values for each channel voltage or current and each temperature sensor. To read the polled values, press the Data Log Read button. Each data log

reads every channel’s voltage (READ_VOUT 8Bh) orcurrent (READ_IOUT 8Ch) and every temperature sen-sor (READ_TEMPERATURE 8Dh). The software findsthe minimum and maximum values over multiple reads. To plot the value being read, press the Auto Polling On button and the Poll Count displays the number of reads thathavebeentrackedinthedatalog.Whenthepolledcount reaches 10,000, the graph deletes the oldest polled values and adds a new polled value. The min/max values are still based on all the poll-count values, but the graph only displays the latest 10,000 polled values. To reset the Poll Count and all the min/max values, select Data Log Reset. To turn off data logging during polling, check the Data Log Off checkbox. The Select Data drop-down list is used to select the voltage, current, or temperature data to display on the graph and in the MIN/MAX Data table. TosaveallthedatagraphedtoaCSVfile,presstheSave Data Log button.

Fault Log Dashboard TabThe Fault Log Dashboard tab sheet (Figure 10) dis-playsall15NVfaultlogsintableformat.Whenthetabisselected, the Overwrite and Fault Log Depth are read. When the fault log is full, theEnable Overwrite can be checked to automatically overwrite previous logs. The fault log depth can be adjusted with the Fault Log Depth drop-down list. The Enable Overwrite and Fault Log Depth are read from bits in MFR_NV_LOG_CONFIG(D8h). To read all 15 fault logs, press the Read All Fault Logs button. This command takes at least 10s to com-plete.Foreachchannelwithinafaultlog,theVOLTAGE/CURRENT table shows the fault/warning status, minimum value, maximum value, and the last three black box read-ings. The TEMPERATUREtableshowstheOTfaultsta-tus, the peak value, and the last temperature reading. To clear or force the fault log, press the Clear NV Fault Log or Force NV Fault Log buttons, respectively. These but-tonswritetoabitinMFR_NV_LOG_CONFIG(D8h).TheDump Logs to File button saves all the fault log tables inaCSVfile.

OUTPUT EQUATIONSIFB = (VOUT)/(R1+R2)

R3=(VFB - 0.1)/(IFBxMarginingRangex120%)

DAC Value = 256 x (VFB/2.048)

Table 1. DAC Calculator

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Figure 8. MAX34462 EV Kit GUI (Status Tab)

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Figure 9. MAX34462 EV Kit GUI (Data Log Graph Tab)

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Figure 10. MAX34462 EV Kit GUI (Fault Log Dashboard Tab)

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Fault Log TabThe Fault Logtabsheet(Figure11)displaysasinglelogin the NV fault log. To read the fault log, press the Read NV Fault Logbuttonandall255bytes fromMFR_NV_FAULT_LOG(DCh)aredisplayed in the table.The faultlog number is displayed above the Read NV Fault Log button. To save the current fault log displayed in the table, press the Dump to a File button and the table is saved asaCSVfile.

Pins TabThe Pinstabsheet(Figure12)showsallthepinnames,pin numbers, and pin descriptions. The Pin Name and Description columns can be edited to specify how the pin is configured. The pin names listed in the Pin Name column are copied to the Pin Name columns on the othertabsandaresavedintheXMLfilewhenaprojectis saved.

Registers TabThe Registers tab sheet (Figure 13) displays all thePMBus commands and their current data. To read the registers, select a page in the top drop-down list and all the PMBus commands valid for that page are auto-matically read. The commands not valid for that page are grayed out. Press the Read All button to read the registers again. To write to a command, enter the hex value in the cell and click another cell or press Enter on thekeyboard.TheCRCofall fourmemoryarrays in

the device can be read by pressing the Read CRC of All Memory Arrays button, which reads/writes to the MFR_CRC (FEh) command. The Flash Commands section allows the user to copy data from one memory arraytoanotherusingthedrop-downlist.WhencopyingfromRAMtoflashmemory,theMFR_STORE_ALL(EEh)command is written.When copying from flash memoryto RAM, the MFR_RESTORE_ALL (EEh) command iswritten. The STORE_DEFAULT_ALL and RESTORE_DEFAULT_ALL buttons store/restore data from main flash to the operating RAM. To reset the device, pressthe Soft Reset button to write to a bit in MFR_MODE(D1h). The Command Description shows the bitmap for selectedPMBuscommands.Selectthecommandinthedrop-down list and the table below shows a description of each bit for that command.

Multiple DevicesThe GUI has the ability to display data for up to four devices. If multiple slave addresses are detected, the Number of Devices option in the Connection menu allows the user to choose how many devices to display. To choose the order of devices, select the appropriate slave address in the DeviceX Slave Address options. Most tabs have separate tables and controls for each device. The Fault Log Dashboard, Fault Log, and Register tabs all have a drop-down list to select the device to read/write if the number of devices is greater than one.

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Figure 11. MAX34462 EV Kit GUI (Fault Log Tab)

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Figure 12. MAX34462 EV Kit GUI (Pins Tab)

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Figure 13. MAX34462 EV Kit GUI (Registers Tab)

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Detailed Description of HardwareUser-Supplied I2C InterfaceTo communicate with the MAX34462 with a user-supplied I2Cinterface,firstremoveJ23jumperstodisconnecttheUSBI2C dongle. If the dongle is no longer desired, it can be separated from the EV kit by snapping the PCB at the scoredline.ConnecttestpointsSDA,SCL,GND,and5Vto the off-board I2C interface. The I2C interface should operate at 3.3V.

User-Supplied Power SuppliesTo disconnect the on-board power supplies, turn off 4-pole DIP switches RSP, RSN PSEN, and DAC. The powersupplies’ GND should be connected to the banana jack (GND).Connect the desired PSENn pins to the enablepinonthepowersupply,andtheRSPnpinstoavoltage-divider on the output of the power supply. The voltage-divider is only required if the output voltage is greater than 1.8V.ConnecttheRSNnpinstothegroundofthepowersupply. For DAC margining, the DACn outputs can beconnectedtothefeedbackofthepowersupply.ResistorsR170–R173 should be adjusted to match the power-supplyfeedbackcircuitry.RefertotheMAX34462ICdatasheet for details or use the DAC calculator to determine the proper values.

User-Supplied DS75LVTo use an off-board digital temperature sensor, connect MSDA,MSCL,andGNDonH4totheDS75LV.Theslave

addressfortheuser-suppliedDS75LVshouldbe92h,94h,or96h.Theon-boardDS75LVhasslaveaddress90h.

Current-Sense AmplifierThe EV kit comes with an on-board 25V/V current-sense amplifier (U3) to demonstrate how the device can monitor current.TheoutputoftheamplifierisconnectedtoRS15andcanberemovedbyturningbothswitchesontheCSA2-pole DIP switch to off.

Multiple Device SystemTo chain multiple MAX34462 EV kits together as one system, follow the steps below. Note: Do not chain more than four EV kits together.1) RemovepowertoallEVkits.2) OnoneEVkit,populatethefourjumpersonJ23.For

allotherboards,removethefourjumpersonJ23.3) ForallEVkits,switchtheSDAandSCLsignalsonthe

12-poleDIPswitch(S4)toon.4) If using the other signals on the 12-pole DIP, then switch

those signals to on; otherwise, turn the switches off.5) Connect the EV kit signals together using ribbon-cable

connectors onH2orH3.Topower and communicatetoanotherEVkit,ensurethat5V,GND,SDA,andSCLare all connected on H2 or H3.All other signals areoptional.

6) ConnecttheEVkitwiththefourjumpersonJ23toaPCusingtheUSBcable.

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*Default position.

*Default position.

LED COLOR DESCRIPTIOND3 Red FAULT0: A fault has occurred.D4 Red FAULT1: A fault has occurred.D5 Red FAULT2: A fault has occurred.D6 Red FAULT3: A fault has occurred.D7 Red ALERT: A fault or warning has occurred.D8 Red GP033: Active-low GP033 pin state.D9 Red GP034: Active-low GP034 pin state.DA Green VOUT0:Channel0ison.DB Green VOUT1:Channel1ison.DC Green VOUT2:Channel2ison.DD Green VOUT3:Channel3ison.

D20 (Power)Red USBPowerFault:Afaultoccurredduetoovervoltagelimit,currentlimit,orthermallimit.

Green USBPower:USBpowersupplyison.

D21(Com)Red Communication:Afterthesoftwarehasinitializedthehardware,theLEDflashesred

when an I2C command is received.

Green Initialized:Hardwarehasbeeninitializedbysoftware.

SWITCH SWITCH POSITION DESCRIPTIONS1 On* CONTROL0:PullstheCONTROL0pinhigh.S2 On* CONTROL1:PullstheCONTROL1pinhigh.S3 On* CONTROL2:PullstheCONTROL2pinhigh.S4 On* CONTROL3:PullstheCONTROL3pinhigh.S5 Pressed Reset:PullstheRST pin low to reset the device.S6 On* MultipleDevices:ConnectsallthemultipledevicesignalstoheadersH2andH3.S7 On* CSA:ConnectsRSP15andRSN15tothecurrent-senseamplifier(U3)S8 On* RSP0–RSP3:ConnectsRSPnofthedevicetotheoutputofthepower-supplychannel.S9 On* RSN0–RSN3:ConnectsRSNnofthedevicetothegroundofthepower-supplychannel.S10 On* PSEN0–PSEN3:ConnectsPSENnofthedevicetotheenablepinofthepower-supplychannel.S11 On* DAC0–DAC3: Connects DACn of the device to the feedback of the power-supply channel.

JUMPER JUMPER POSITION DESCRIPTIONJ1 VDD-VDUT Connects VDD to VDUT (U1).

J23

5V-5V Supplies5VfromtheUSBI2C dongle to the EV kit board.

SDA-SDA ConnectsSDAfromtheUSBI2CdongletotheU1deviceSDA.

GND-GND ConnectsGNDfromtheUSBI2C dongle to the EV kit board GND.

SCL-SCL ConnectsSCLfromtheUSBI2CdongletotheU1deviceSCL.

Table 2. Description of LEDs

Table 3. Description of Switches

Table 4. Description of Jumpers

Maxim Integrated 24



TroubleshootingAll efforts have been made to ensure that each kit works on the first try, right out of the box. In the rare occasion that a problem is suspected, see Table 5 to help trouble-shoot the issue.

SYMPTOM CHECK SOLUTION

GUI says hardware not found.

IstheLEDlabeledD20red?If yes, then the electronic fuse is in a fault state. Inspect for electrical shorts on the PCB and make sure that the PCB is not sitting on a conductive surface.

DoestheLEDlabeledD21turn green when the GUI is running?

If not, then exit the GUI and try running it again. If D20 still does not turngreen,thenexittheGUIandtryconnectingtheUSBcabletoadifferentUSBportonthePCandwaitforaWindowsmessagethatstatesthehardwareisreadytouse.RuntheGUIagain.

AreanyoftheLEDsilluminated?

Ifnot,thenthePCBmaynotbegettingpowerfromtheUSB.TryadifferentUSBcableoradifferentUSBport.

No slave address found and read/writes fail

JumperJ1 MakesurejumperJ1isinstalledtopowertheU1device.

JumperJ23 MakesurefourjumpersonJ23areinstalled.

Channels do not turn on

Is there a CONTROL# fault on the Status tab of the GUI?

IftheON_OFF_CONFIGcommandissetasturn-onpowersupplieswiththeCONTROL0/1/2/3pin,thenmakesureS1–S4areinonposition.

IstheALERTLEDonandallchannelLEDsoff?

Ifso,makesureswitchPSEN(S6)isintheonpositiontoconnectthePSENsofU1devicetochannelpowersupplies.

IstheALERTLEDonandatleastonechannelLEDon?

Ifso,makesureswitchRSPandRSNareintheonpositiontoconnect the power-supply outputs to the U1 device.

Margining is not working, voltage is not changing S11(DAC) Make sure the DAC switch is in the on position to connect the DACs

oftheU1devicetotheFBofchannels0–3.

Chaining multiple EV kits togetherusingH2andH3

does not seem to workS6 Make sure that all the switches on the 12-pole DIP switch are in the

on position.

The current monitored on RS15doesnotwork S7(CSA) MakesuretheswitchesonCSA(S7)areontoconnecttheoutputof

thecurrent-senseamplifiertoRSP15.

Table 5. Troubleshooting

Maxim Integrated 25



Figure 14a. MAX34462 EV Kit Schematic (Sheet 1 of 3)

RSPO/GPIP0 A1

RSN0/GPIN0 A2

RSP1/GPIP1 B2

RSN1/GPIN1 B1

RSP2/GPIP2 C2

RSN2/GPIN2 C1

RSP3/GPIP3 D2

RSN3/GPIN3 D1

RSP4/GPIP4 E1

RSN4/GPIN4 E2

RSP5/GPIP5 F1

RSN5/GPIN5 F2

RSP6/GPIP6 G1

RSN6/GPIN6 G2

RSP7/GPIP7 H1

RSN7/GPIN7 H2

RSP8/GPIP8 J1

RSN8/GPIN8 J2

RSP9/GPIP9 K1

RSN9/GPIN9 K2

RSP10/GPIP10 K3

RSN10/GPIN10 J3

RSP11/GPIP11 H3

RSN11/GPIN11 H4

RSP12/GPIP12 A3

RSN

12/G

PIN

12B3

RSP

13/G

PIP1

3A

4RS

N13

/GP

IN13

B4RS

P14

/GPI

P14

K4

RSN

14/G

PIN

14J4

RSP

15/G

PIP1

5K

5RS

N15

/GP

IN15

J5RS

TC1

0CO

NTR

OL

0G

4CO

NTR

OL

1K

8CO

NTR

OL

2H

8CO

NTR

OL

3J8

GP

O33

E5SE

Q/G

PO

32D

7SD

AD

8SC

LD

9M

SCL

C8M

SDA

C9A

LER

TH

10A

DD

RE9

GP

O34

E10

FAU

LT0

/GP

O28

J9FA

UL

T1/G

PO

29K

10FA

UL

T2/G

PO

30J1

0FA

UL

T3/G

PO

31H

9

PSEN0/GPO0G9 PSEN1/GP1F8 PSEN2/GP2G10 PSEN3/GP3F7 PSEN4/GP4F9 PSEN5/GP5E8 PSEN6/GP6F10 PSEN7/GP7E7 PSEN8/GP8H5 PSEN9/GP9K7 PSEN10/GP10F6 PSEN11/GP11J6 PSEN12/GP12H6 PSEN13/GP13G6 PSEN14/GP14J7 PSEN15/GP15H7 DAC0/GPO16A9 DAC1/GPO17B8 DAC2/GPO18A8 DAC3/GPO19C7 DAC4/GPO20A6 DAC5/GPO21B6 DAC6/GPO22C6 DAC7/GPO23A5 DAC8/GPO24D6

DA

C9/G

PO

25E4

DA

C10/

GP

O26

D5

DA

C11/

GP

O27

D4

DA

C12

D3

DA

C13

C3

DA

C14

C4

DA

C15

B5

SYN

CD

10

VREF

F3

DVD

DB9

DVD

DF5

DVD

DG

8

DVS

SB1

0

DVS

SK

9

DVS

SG

7

DVS

SE6

DVS

SK

6

REG

18G

5

REG

18A

A10

AVS

SB7

AVS

SC5

AVS

SG

3

AVD

DF4

AVD

DE3

AVD

DA

7

U1

MA

X344

62

R130

10k

TP11

5CO

NTR

OL

1

GN

D

VDD

C14

0.1u

F

12

3S2 SW

-SP

DT

R129

100

RSP0

RSP1

RSP2

RSP3

RSP4

RSP5

RSP6

RSP7

RSP8

RSP9

RSP10

RSP11

RSP12

RSP

13

RSP

14

RSP

15

RSN0

RSN1

RSN2

RSN3

RSN4

RSN5

RSN6

RSN7

RSN8

RSN9

RSN10

RSN11

RSN

12

RSN

13

RSN

14

RSN

15

PSEN0PSEN1PSEN2PSEN3PSEN4PSEN5PSEN6PSEN7PSEN8PSEN9PSEN10PSEN11PSEN12PSEN13PSEN14PSEN15DAC0DAC1DAC2DAC3DAC4DAC5DAC6DAC7DAC8

DA

C9D

AC1

0D

AC1

1D

AC1

2D

AC1

3D

AC1

4D

AC1

5

R128

10k

TP11

4CO

NTR

OL

2

GN

D

C13

0.1u

F

12

3S3 SW

-SP

DT

R127

100

R126

10k

TP11

3CO

NTR

OL

3

GN

D

C12

0.1u

F

12

3S4 SW

-SP

DT

R125

100

R120

100k

TP11

0

SEQ

VDD

R121

0

R124

2.2k

R123

2.2k

R122

0

GN

D

TP11

2SD

A

TP11

1

SCL

2 3 41

H1

I2C

DO

NG

LE

SCL

SDA

VDD

VDD

GN

D

1B1

BLA

CK B

AN

AN

A J

ACK

GN

D

GN

DG

ND

GN

DG

ND

GN

DG

ND

GN

D

C162

10uF

3.3V

TP44

5VTP

433.

3V

C161

0.01

uF

R161

10k

R160

45.3

k

IN1

GN

D2

EN3

GS

4PO

K5

FB6

BYP

7O

UT

8U

4

MA

X890

2B

R162

DN

PC1

66

1uF

GN

D

TP1

VDD

VDD

12

D2

12

J1

VDD

-VD

UT

VDU

T

C165

10uF

VLED

C164

0.01

uF

R164

10k

R163

45.3

k

IN1

GN

D2

EN3

GS

4PO

K5

FB6

BYP

7O

UT

8U

5

MA

X890

2B

5V5V

C160

10uF

GN

D

+C1

63

DN

P 4

70uF

ALU

M

R165

0.1

Don

gle5

V

GN

D1

GN

D2

OU

T3

RS-

4RS

+5

U3

MA

X993

8TEU

K+

RSP

15'

GN

D

Hea

der5

V

R132 0

R133100k

R131 4.

7kC1

5

0.1u

FTP

116

CON

TRO

L0

3.3V

12

3S1 SW

-SP

DT

GN

D

R152

DN

P

R154

100k

C10

0.1u

F

GN

D

3.3V

SDA

1

SCL

2

O.S

.3

GN

D4

A2

5A

16

A0

7VC

C8

U2

DS7

5LV

R153

DN

P

R155

100k

R150

4.7k

R151

4.7k

123

H4

Mas

ter

I2C H

eade

r

3.3V

R112

100k

R113

330

D7

RED

.

TP10

7

ALERT

VDD

VLED

C16

DN

P

R116

DN

PR1

17D

NP

R118

DN

P

R119

0

TP10

9A

DD

R

GN

D

MSCL

MSDA

VDD

MA

X ES

R: 1

00 m

ohm

C122

nF

TP10

1 VREF

R101

100

R100

100k

TP10

0SY

NC

C20.

1uF C4

0.1u

F

C30.

1uF C5

1uF

C61u

F

C70.

1uF

C80.

1uF

C90.

1uF

GN

D

GN

D

R108

100k

R109

330

D3

RED

TP10

5

FAULT0

VDD

VLED

R104

100k

R105

330

D5

RED

TP10

3

FAULT2

VDD

VLED

R106

100k

R107

330

D4

RED

TP10

4

FAULT1

VDD

VLED

R102

100k

R103

330

D6

RED

TP10

2

FAULT3

VDD

VLED

R110

100k

R111

330

D9

RED

TP10

6

GPO34

VDD

VLED

R114

100k

R115

330

D8

RED

TP10

8

GPO33

VDD

VLED

FAU

LT3

LED

FAU

LT2

LED

FAU

LT1

LED

FAU

LT0

LED

GPO

34 L

EDG

PO33

LED

ALER

T L

ED

FAU

LT0

FAU

LT1

FAU

LT2

FAU

LT3

GPO

34A

DD

RA

LER

TM

SDA

MSC

LD

UT

_SCL

DU

T_S

DA

SEQ

GPO

33

CON

TRO

L0

CON

TRO

L1

CON

TRO

L2

CON

TRO

L3

RST

SYN

C

VREF

REG

18RE

G18

A

GN

D

MSD

A

MSC

L

DU

T_S

CL

DU

T_S

DA

VDD

VDD

R134

100k

C11

0.1u

F

GN

D

12

S5

SW-P

BVDD

CON

TRO

L 0

Sw

itch

CON

TRO

L 1

Sw

itch

CON

TRO

L 2

Sw

itch

CON

TRO

L 3

Sw

itch

12

34

56

78

910

1112

1314

H2

Mul

ti D

evic

e Sy

stem

Hea

der

12

34

56

78

910

1112

1314

H3

Mul

ti D

evic

e Sy

stem

Hea

der

SDA

SCL

FAU

LT1

FAU

LT2

SEQ

CON

TRO

L0

CON

TRO

L1

GN

D

FAU

LT0

Hea

der5

V

CON

TRO

L2

CON

TRO

L3

FAU

LT3

SYN

C

RSN

15'

VDU

TVD

UT

VDU

T

VDU

TVD

UT

VDU

T

1 24 3

S7 SW D

IP-2

MA

X ES

R: 5

00 m

ohm

MA

X ES

R: 5

00 m

ohm

12

D1

1 2 3 4 5 6 7 8 9 10 11 12131415161718192021222324

S6 SW D

IP-1

2

C17

0.01

uF

from

REG

18 t

o G

ND

R135

100

Curr

ent

Sens

e A

mpl

ier

CSA

Sw

itch

LDO

Reg

ulat

orLD

O R

egul

ator

Dig

ital

Tem

p Se

nsor

C18

0.01

uF

from

REG

18A

to

GN

D

Maxim Integrated 26



Figure 14b. MAX34462 EV Kit Schematic (Sheet 2 of 3)

5V

C0A

10uF

C1A

0.01

uFR1

A 8.66

k

R2A 3.09

k

R3A

49.9

R4A

267

R5A

1k

C2A

10uF

DA

GRE

EN

GN

D

R10

0R1

10

R80

R90

R60

R70

R40

R50

R20

R30

R00

R10

R31 DNP

R30 DNP

R29 DNP

R28 DNP

R27 DNP

R26 DNP

R25 DNP

R24 DNP

R23 DNP

R22 DNP

R21 DNP

R20 DNP

RSP

0'RS

P1'

RSP

2'RS

P3'

R51 10kR50 10kR49 10kR48 10kR47 10kR46 10kR45 10kR44 10kR43 10kR42 10kR41 10kR40 10k

PSEN

0'PS

EN1'

PSEN

2'PS

EN3'

PSEN

0PS

EN1

PSEN

2PS

EN3

PSEN

4PS

EN5

PSEN

6PS

EN7

PSEN

8PS

EN9

PSEN

10PS

EN11

TP27

PSEN

0

PSEN

0'

VOU

T0

FB0

TP30

FB0

RSP

0'

TP28

VOU

T0

TP29

RS0

FB0

FB1

FB2

FB3

IN1

GN

D2

EN3

GS

4PO

K5

FB6

BYP

7O

UT

8U

1A

MA

X890

2B

5V

C0B

10uF

C1B

0.01

uFR1

B 8.66

k

R2B 3.09

K

R3B

49.9

R4B

267

R5B

1k

C2B

10uF

DB

GRE

EN

GN

D

TP31

PSEN

1

PSEN

1'

VOU

T1

FB1

TP34

FB1

RSP

1'

TP32

VOU

T1

TP33

RS1

IN1

GN

D2

EN3

GS

4PO

K5

FB6

BYP

7O

UT

8U

1B

MA

X890

2B

5V

C0C

10uF

C1C

0.01

uFR1

C 8.66

k

R2C 3.09

k

R3C

49.9

R4C

267

R5C

1k

C2C

10uF

DC

GRE

EN

GN

D

TP35

PSEN

2

PSEN

2'

VOU

T2

FB2

TP38

FB2

RSP

2'

TP36

VOU

T2

TP37

RS2

IN1

GN

D2

EN3

GS

4PO

K5

FB6

BYP

7O

UT

8U

1C

MA

X890

2B

5V

C0D

10uF

C1D

0.01

uFR1

D 8.66

k

R2D 3.09

k

R3D

49.9

R4D

267

R5D

1k

C2D

10uF

DD

GRE

EN

GN

D

TP39

PSEN

3

PSEN

3'

VOU

T3

FB3

TP42

FB3

RSP

3'

TP40

VOU

T3

TP41

RS3

IN1

GN

D2

EN3

GS

4PO

K5

FB6

BYP

7O

UT

8U

1D

MA

X890

2B

1 2 3 4

8 7 6 5

S11

4-PO

LE

DIP

SW

1 2 3 4

8 7 6 5

S8 4-PO

LE

DIP

SW

1 2 3 4

8 7 6 5

S10

4-PO

LE

DIP

SW

100

mil

head

er t

estp

oint

s

100

mil

head

er t

estp

oint

s

R12

0R1

30

R14

0R1

50

R32 DNP

R33 DNP

R34 DNP

R35 DNP

R170

10k

R171

10k

R172

10k

R173

10k

R174

10k

R175

10k

R176

10k

R177

10k

C25 DNP

C26 DNP

C27 DNP

C28 DNP

C29 DNP

C30 DNP

C31 DNP

C32 DNP

C33 DNP

C24 DNP

C23 DNP

C22 DNP

C21 DNP

C34 DNP

C20 DNP

C35 DNP

100

mil

head

er t

estp

oint

s

RSP

15'

R178

10k

R179

10k

R180

10k

R181

10k

R182

10k

R183

10k

R184

10k

R185

10k

DA

C0D

AC1

DA

C2D

AC3

DA

C4D

AC5

DA

C6D

AC7

DA

C8D

AC9

DA

C10

DA

C11

DA

C12

DA

C13

DA

C14

DA

C15

J1A

SOL

DER

_BRI

DG

E2

J1B

SOL

DER

_BRI

DG

E2

J1C

SOL

DER

_BRI

DG

E2

J1D

SOL

DER

_BRI

DG

E2

RSN

0'

RSN

1'

RSN

2'

RSN

3'

R90

0R9

10

R88

0R8

90

R86

0R8

70

R84

0R8

50

R82

0R8

30

R80

0R8

10

RSN

0'RS

N1'

RSN

2'RS

N3'

1 2 3 4

8 7 6 5

S94-

POL

E D

IP S

W

R92

0R9

30

R94

0R9

50

RSN

15'

RSP

0RS

P1

RSP

2RS

P3

RSP

4RS

P5

RSP

6RS

P7

RSP

8RS

P9

RSP

10RS

P11

RSP

12RS

P13

RSP

14RS

P15

RSN

0RS

N1

RSN

2RS

N3

RSN

4RS

N5

RSN

6RS

N7

RSN

8RS

N9

RSN

10RS

N11

RSN

12RS

N13

RSN

14RS

N15Place CAPs near DUT

Layo

ut H

5 an

d H

6 as

a 2

x16

hea

der

J94

DNP

J93 DNP

J92 DNP

J91 DNP

J90 DNP

J89 DNP

PSEN

12PS

EN13

PSEN

14PS

EN15

R52 10kR53 10kR54 10kR55 10k

5V

R56 100kR57 100kR58 100kR59 100k

5V

Q1

NM

OS

Q2

NM

OS

Q3

NM

OS

Q4

NM

OS

R60100k

R61

100k

R62100k

R63100k

GN

D

J88 DNP

J87 DNP

J86 DNP

J85 DNP

J84 DNP

J95

DNP

GN

D

J80 DNP

J81 DNP

J82 DNP

J83 DNP

GN

D

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

H5 RS

P H

eade

r - D

NP

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

H6

RSN

Hea

der

- DN

P

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

H8 D

AC

Hea

der

- DN

P

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

H7 PS

EN H

eade

r - D

NP

SOL

DER

BRI

DG

ES

SOL

DER

BRI

DG

ES

Plac

e R

on t

op s

ide

for

DA

C pr

obin

g

100

mil

head

er t

estp

oint

s

LDO

Reg

ulat

or

LDO

Reg

ulat

or

LDO

Reg

ulat

or

LDO

Reg

ulat

or

Maxim Integrated 27



Figure 14c. MAX34462 EV Kit Schematic (Sheet 3 of 3)

MCL

R1

P3,H

B2

COM

_LED

,BO

OT

3

P14

P25

RCV

6

P6,

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Maxim Integrated 28



Figure 15. MAX34462 EV Kit PCB Layout—Top Layer

Maxim Integrated 29



Figure 16. MAX34462 EV Kit PCB Layout—Internal Signal Layer 1

Maxim Integrated 30



Figure 17. MAX34462 EV Kit PCB Layout—Internal Plane Layer 1

Maxim Integrated 31



Figure 18. MAX34462 EV Kit PCB Layout—Internal Plane Layer 2

Maxim Integrated 32



Figure 19. MAX34462 EV Kit PCB Layout—Internal Signal Layer 2

Maxim Integrated 33



Figure 20. MAX34462 EV Kit PCB Layout—Bottom Layer

Maxim Integrated 34



#Denotes an RoHS-compliant device that may include lead(Pb), which is exempt under the RoHS requirements

PART TYPEMAX34462EVKIT# EVKit

Ordering Information

Maxim Integrated cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim Integrated product. No circuit patent licenses are implied. Maxim Integrated reserves the right to change the circuitry and specifications without notice at any time.

Maxim Integrated and the Maxim Integrated logo are trademarks of Maxim Integrated Products, Inc. © 2013 Maxim Integrated Products, Inc. 35


REVISIONNUMBER

REVISIONDATE DESCRIPTION PAGES

CHANGED0 7/13 Initial release —

Revision History

For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxim Integrated’s website at www.maximintegrated.com.

max34462 evaluation kit evaluates: max34462 · 2014-02-20 · max34462 evaluation kit evaluates:...

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