tld5099ep sepic evaluation kit - mouser electronics

SEPIC evaluation kitTLD5099EP

About this documentProduct description

The TLD5099EP is an AEC qualified DC/DC boost controller, especially designed to drive LEDs.• Built in diagnosis and protection features• Pulse width modulator to implement a dimming function with reduced color shifting• Spread spectrum modulator to improve the EMI performanceScope and purpose

Scope of this user manual is to provide to the audience instructions on usage of TLD5099EP SEPIC evaluationboard.Intended audience

This document is intended for engineers who need to perform measurements and check performances withTLD5099EP SEPIC evaluation board.

Table of contents

About this document . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

Table of contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

1 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2

2 Quick start procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4

3 Current adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

4 Power derating (Battery dependent current) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6

5 Embedded PWM engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

6 Cold crank survival circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

7 Schematics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9

8 PCB layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

9 Bill of material . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

10 Efficiency measurements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

11 Maximizing efficiency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16

12 Minimizing EMI emissions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

13 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Disclaimer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

User Manual

User Manual Please read the Important Notice and Warnings at the end of this documentwww.infineon.com 2020-01-29

https://www.infineon.com

1 DescriptionEvaluation board for high power LED application with TLD5099EP product in SEPIC topology.Default configuration of the board is SEPIC topology without any additional features enabled. In thisconfiguration, it can deliver up to 21 W to the load with an efficiency above 84%. Auxiliary circuits to protect theDC/DC and the load during short to ground are present.The board is also equipped with the following features, enabled by jumpers:• Output current adjustment trimmer• Power derating circuitry• Embedded PWM engine• Cold Crank Survival Circuit (CCSC)

Figure 1 Board picture


1 Description

User Manual 22020-01-29

Figure 2 Simplified schematic

Table 1 Performance summary

Parameter Conditions ValueInput supply voltage Jumper X10 in position 2-3 (CCSC deactivated)

Parameter degradation below 6.5 V8 V to 27 VDown to 6.5 V for less than 2 s

Input supply voltage Jumper X10 in position 1-2 (CCSC active) 8 V to 27 VDown to 3.0 V for less than 2 s

Output current Jumper X15 open 1 A

Switching frequency VIN = 13.2 V; spread spectrum "on" 400 kHz

Efficiency Measured with 7 white standard LED 3 V @ 1 Aoutput current

> 84%

Output voltage range Output voltage related to ground 6 V to 23 V

Output overvoltageprotection

Output voltage related to ground 28 V


1 Description


2 Quick start procedureThe default configuration of the board has all additional features disabled. Jumpers are populated as follows:

Table 2 Jumper population

Jumper number Condition MeaningX10 Close 2-3 Disable CCSC

X6 Close 2-1 External dimming enabled

X13 Close 2-1 Disable battery dependent current

The default configuration is depicted below:

Figure 3 Default configuration of the board

In this configuration PWM signal has to be applied as digital signal on X5 (max 45 V), and the output currentcannot be adjusted.


2 Quick start procedure


3 Current adjustmentOutput current adjustment can be performed by changing the value of trimmer R15 with a screwdriver, whenX13 is closed in position 1-2 and X15 is closed. Output current can vary from 0 to 100% of the maximum outputcurrent (in this evaluation board from 0 to 1 A). By removing the X15 jumper, output current will reach itsmaximum value.Jumpers are populated as follows:





X15 Closed Adjustable output current enabled

Figure 4 Current adjustment


3 Current adjustment


4 Power derating (Battery dependent current)Power derating acts by reducing VSET (and thus the output current) when the battery voltage drops below 8 V. Itworks better when R15 is trimmed to its maximum value, otherwise a different derating profile is applied. If adifferent derating profile is needed, R14 has to be changed accordingly, in order to have 1.6 V on pin SET whenthe battery voltage reaches the desired threshold below which the output current must decreaseproportionally. A quick formula to calculate R14 is:R14 = R15 + R16 ⋅ VBATT

1.6 − 1

where R15 = 10 kΩ and R16 = 560Ω.For example, if the power derating should start when the battery voltage drops under 12 V, R14 must bereplaced with a 68 kΩ 0603 resistor (please refer to the TLD5099EP datasheets for more information).Jumpers are populated as follows:




X13 Close 2-3 Enable battery dependent current

X15 Closed Adjustable output current enabled

Figure 5 Power derating


4 Power derating (Battery dependent current)


5 Embedded PWM engineEmbedded PWM engine provides an internal PWM signal without any external dimming signal required. It isenabled when X6 is closed in position 2-3. If X7 is open, EN/PWMI/PWMA pin is biased at 5 V and then the dutycycle is 100%; closing X7, the duty cycle is adjustable through trimmer R4. The PWM frequency is set to 350 Hz; ifanother PWM frequency is needed, C27 must be changed to a proper value (please refer to the TLD5099EPdatasheets for more information).Jumpers are populated as follows:



X6 Close 2-3 Internal dimming enabled


X7 Closed Adjustable PWM dimming for position light

Figure 6 Embedded PWM engine


5 Embedded PWM engine


6 Cold crank survival circuitThis feature helps the system to survive LV124 test E11 “severe test pulse”, when input voltage drops below 4.5 Vthat is the minimum input voltage for the TLD5099EP. This circuit feeds back the device with the output voltagewhen the input voltage drops. To activate this feature, close X10 in position 1-2. Other settings can be left aspreferred.

Figure 7 Cold crank survival circuit


6 Cold crank survival circuit


7 Schematics

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7 Schematics


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7 Schematics


8 PCB layout

Figure 11 PCB layout top view

Figure 12 PCB layout bottom view


8 PCB layout


9 Bill of material

Table 6 Bill of material

Designator Value Manufacturer Manufacturer order numberC1, C2, C7, C8, C19, C30 10uF muRata GCM32EC71H106KA03

C6, C18, C25 100nF AVX 06035C104K4Z2A

C12 220uF Panasonic EEEFK1H221P

C13, C14 470pF muRata GCM1885C1H471JA16

C15, C16, C20, C21 4.7uF TDK CGA6M3X7S2A475K200AE

C17, C22 4.7uF TDK CGA6M3X7S2A475K200AE

C23, C29 1uF TDK CGA3E1X7R1V105K080AC

C24 2.2nF MuRata GCM2165C2A222FA16

C26 10uF TDK CGA4J1X7S1C106K125AC

C27 560pF muRata GCM2165C2A561JA16

C28 100nF TDK CGA4J2X7R2A104M125AE

C31 4.7uF Kemet C1210C475K5RACAUTO

D1 Zener 10V-500mW

D2 PMEG6030EP,115 Nexperia PMEG6030EP,115

D3, D4, D5, D7 BAS16 Infineon Technologies BAS16

D6 10V ON Semiconductor BZX84C10LT1G

L1 10uH Coilcraft XAL6060-103MEB

L2 100H TDK Corporation MPZ2012S101ATD25

L3 TDK ACM70V-701-2PL-TL00

L4, L5 1kH TDK MPZ2012S102ATD25

L6 22uH TDK Corporation B82477D4223M000

Q1 IPD90P04P4L-04 Infineon Technologies IPD90P04P4L-04

Q2 IPD25N06S4L-30 Infineon Technologies IPD25N06S4L-30

Q3 BSS138N Infineon Technologies BSS138N

Q4 AUIRF7343Q Infineon Technologies AUIRF7343Q

R1, R18 10kΩ Vishay CRCW060310K0FK

R2, R19 8.2kΩ Vishay CRCW06038K20FK

R3 2.2kΩ Vishay CRCW08052K20FK

R4, R15 10kΩ Vishay T93YA103KT20

R5 4.7Ω Vishay CRCW25124R70FK

R6 22kΩ Vishay CRCW080522K0FK

R7 3.3kΩ Vishay CRCW06033K30FK

R8, R20 10Ω Vishay CRCW060310R0FK

R9 18mΩ Vishay WSL2512R0180FEA18



9 Bill of material


Table 6 Bill of material (continued)

Designator Value Manufacturer Manufacturer order numberR11 2kΩ Vishay CRCW08052K00FK

R12 0Ω Yageo AC0805JR-070RL



R16 560Ω Vishay CRCW0603560RFK

R17 300mΩ Vishay WSL2512R3000FEA


U1 TLD5099EP Infineon Technologies TLD5099EP

X1, X2, X4 Solder Jumper 2 Pins Infineon TechnologiesAG

Solder Jumper 2 Pins

X3, X5, X16 1935776 Phoenix Contact 1935776

X6, X10, X13 TSM-103-01-S-SV Samtec TSM-103-01-S-SV

X7, X15 TSM-102-01-S-SV Samtec TSM-102-01-S-SV

X8, X9, X11, X12, X14, X17,X20

5001 Keystone 5001


9 Bill of material


10 Efficiency measurements

Figure 13 Efficiency vs. input voltage

This efficiency performance has been obtained with:

Table 7 Parameters influencing efficiency

Output load: Series of 7 white standard LED with Vj = 3 V kept cooled with forced air

EMI filter: Totally bypassed by closing the jumpers X1, X2 and X4

CCSC: Off (jumper X10 closed on 2-3)

Current adjustment: Off (jumper X15 left open)

Dimming output: Off (jumper X7 left open)

Power derating: Off (jumper X13 closed on 1-2)

Efficiency performances can be increased: refer to Chapter 11.


10 Efficiency measurements


11 Maximizing efficiencyThis evaluation board has been designed to reach a fair compromise between efficiency performance and EMIemissions compliance.Nevertheless, if the maximum efficiency is needed, the following actions should be considered:1. Remove the snubber circuit R5, C24 or choose a lower value for the capacitor C24 (for example 1 nF)2. Bypass the whole EMI filter by bridging the jumpers X1, X2 and X43. Bypass the output ferrite beads L4 and L54. Replace the main inductor L6 with one that boasts a lower parasitic DC resistance, for example

• TDK model B82477C6223M603• TDK model B82477D6223M603

5. Turn off the CCSC by placing the jumper X10 on position 2-36. Bypass the gate resistor R8


11 Maximizing efficiency


12 Minimizing EMI emissionsThis evaluation board has been designed to reach a fair compromise between efficiency performance and EMIemissions compliance. Furthermore, this evaluation board can fulfill the class V of the CISPR25 in conductedemissions from 150 kHz to 108 MHz.Nevertheless, if the minimum EMI emission is required, the following actions should be considered:1. Choose a higher value for the capacitor C25 (for example 2.7 nF or 3.3 nF)2. Include the whole EMI filter by removing bridges from the jumpers X1, X2 and X43. Increase the gate resistor value R8 with a small value such as 22 Ω4. With a short piece of wire connect the CHASSIS TERMINAL to the test ground plane as close as possible to

where the board is placed


12 Minimizing EMI emissions


13 Revision historyDocumentversion

Date of release Description of changes

Rev. 1.00 2020-01-29 First release related to evalboard S01_P01.


13 Revision history


TrademarksAll referenced product or service names and trademarks are the property of their respective owners.

Edition 2020-01-29Published byInfineon Technologies AG81726 Munich, Germany © 2020 Infineon Technologies AGAll Rights Reserved. Do you have a question about anyaspect of this document?Email: [email protected] Document referenceIFX-sel1578987058873

IMPORTANT NOTICEThe information contained in this application note isgiven as a hint for the implementation of the productonly and shall in no event be regarded as a descriptionor warranty of a certain functionality, condition orquality of the product. Before implementation of theproduct, the recipient of this application note mustverify any function and other technical informationgiven herein in the real application. InfineonTechnologies hereby disclaims any and all warrantiesand liabilities of any kind (including without limitationwarranties of non-infringement of intellectual propertyrights of any third party) with respect to any and allinformation given in this application note.

The data contained in this document is exclusivelyintended for technically trained staff. It is theresponsibility of customer’s technical departments toevaluate the suitability of the product for the intendedapplication and the completeness of the productinformation given in this document with respect to suchapplication.

WARNINGSDue to technical requirements products may containdangerous substances. For information on the typesin question please contact your nearest InfineonTechnologies office.Except as otherwise explicitly approved by InfineonTechnologies in a written document signed byauthorized representatives of Infineon Technologies,Infineon Technologies’ products may not be used inany applications where a failure of the product orany consequences of the use thereof can reasonablybe expected to result in personal injury

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