bjt zener notes

1.315V

-1.318V

-11.79mV 43.49mV

1A

1 1Wednesday, September 03, 2003

123Marc E. Herniter

01ECE250 or ECE351

Size Document Name Rev

Date: Sheet of

ECE Department5500 Wabash AvenueTerre Haute, IN 47803Ph: (812) 877-8512FAX: (253) 369-9536

Name: Class:CM:Section:

Vcc

VEE

VEE

0

Vcc

Q5ZTX450

+

RB1

2.7k

+

-

V1DC = 15

+

RB2

2.7K

Q6ZTX550

Q4ZTX450

Q19

ZTX550

Q13TIP32

+

-

V2DC = 15

+

RE1

0.47

80.22mA

Q16ZTX450

Q3TIP31

Q7ZTX550

+

RE2

0.47

MOTOROLASEMICONDUCTORTECHNICAL DATA

Motorola TVS/Zener Device Data6-97

500 mW DO-35 Glass Data Sheet

500 mW DO-35 GlassZener Voltage Regulator DiodesGENERAL DATA APPLICABLE TO ALL SERIES INTHIS GROUP500 MilliwattHermetically SealedGlass Silicon Zener DiodesSpecification Features: Complete Voltage Range 1.8 to 200 Volts DO-204AH Package Smaller than Conventional DO-204AA Package Double Slug Type Construction Metallurgically Bonded ConstructionMechanical Characteristics:CASE: Double slug type, hermetically sealed glassMAXIMUM LEAD TEMPERATURE FOR SOLDERING PURPOSES: 230C, 1/16 from

case for 10 secondsFINISH: All external surfaces are corrosion resistant with readily solderable leadsPOLARITY: Cathode indicated by color band. When operated in zener mode, cathode

will be positive with respect to anodeMOUNTING POSITION: AnyWAFER FAB LOCATION: Phoenix, ArizonaASSEMBLY/TEST LOCATION: Seoul, Korea

MAXIMUM RATINGS (Motorola Devices)*Rating Symbol Value Unit

DC Power Dissipation and TL 75CLead Length = 3/8Derate above TL = 75C

PD5004

mWmW/C

Operating and Storage Temperature Range TJ, Tstg 65 to +200 C* Some part number series have lower JEDEC registered ratings.

0.7

0.6

0.5

0.4

0.3

0.2

0.1

00 20 40 60 80 100 120 140 160 180 200

TL, LEAD TEMPERATURE (C)

P D, MA

XIMU

M PO

WER

DIS

SIPA

TION

(WAT

TS)

Figure 1. Steady State Power Derating

HEATSINKS

3/8 3/8

GENERALDATA

CASE 299DO-204AH

GLASS

500 mWDO-35 GLASS

GLASS ZENER DIODES500 MILLIWATTS1.8200 VOLTS

GENERAL DATA 500 mW DO-35 GLASS

Motorola TVS/Zener Device Data6-105

500 mW DO-35 Glass Data Sheet

Low level oxide passivated zener diodes for applications re-quiring extremely low operating currents, low leakage, andsharp breakdown voltage.

Zener Voltage Specified @ IZT = 50 A Maximum Delta VZ Given from 10 to 100 A

ELECTRICAL CHARACTERISTICS (TA = 25C, VF = 1.5 V Max at IF = 100 mA for all types)

TypeNumber

Zener VoltageVZ @ IZT = 50 A

Volts

MaximumReverse Current

IR A

TestVoltageVR Volts

MaximumZener Current

IZM mA

MaximumVoltage Change

VZ VoltsNumber(Note 1) Nom (Note 1) Min Max (Note 3)

IZM mA(Note 2)

VZ Volts(Note 4)

1N4678 1.8 1.71 1.89 7.5 1 120 0.71N4679 2 1.9 2.1 5 1 110 0.71N4680 2.2 2.09 2.31 4 1 100 0.751N4681 2.4 2.28 2.52 2 1 95 0.81N4682 2.7 2.565 2.835 1 1 90 0.851N4683 3 2.85 3.15 0.8 1 85 0.91N4684 3.3 3.135 3.465 7.5 1.5 80 0.951N4685 3.6 3.42 3.78 7.5 2 75 0.951N4686 3.9 3.705 4.095 5 2 70 0.971N4687 4.3 4.085 4.515 4 2 65 0.991N4688 4.7 4.465 4.935 10 3 60 0.991N4689 5.1 4.845 5.355 10 3 55 0.971N4690 5.6 5.32 5.88 10 4 50 0.961N4691 6.2 5.89 6.51 10 5 45 0.951N4692 6.8 6.46 7.14 10 5.1 35 0.91N4693 7.5 7.125 7.875 10 5.7 31.8 0.751N4694 8.2 7.79 8.61 1 6.2 29 0.51N4695 8.7 8.265 9.135 1 6.6 27.4 0.11N4696 9.1 8.645 9.555 1 6.9 26.2 0.081N4697 10 9.5 10.5 1 7.6 24.8 0.11N4698 11 10.45 11.55 0.05 8.4 21.6 0.111N4699 12 11.4 12.6 0.05 9.1 20.4 0.121N4700 13 12.35 13.65 0.05 9.8 19 0.131N4701 14 13.3 14.7 0.05 10.6 17.5 0.141N4702 15 14.25 15.75 0.05 11.4 16.3 0.151N4703 16 15.2 16.8 0.05 12.1 15.4 0.161N4704 17 16.15 17.85 0.05 12.9 14.5 0.171N4705 18 17.1 18.9 0.05 13.6 13.2 0.181N4706 19 18.05 19.95 0.05 14.4 12.5 0.191N4707 20 19 21 0.01 15.2 11.9 0.21N4708 22 20.9 23.1 0.01 16.7 10.8 0.221N4709 24 22.8 25.2 0.01 18.2 9.9 0.241N4710 25 23.75 26.25 0.01 19 9.5 0.251N4711 27 25.65 28.35 0.01 20.4 8.8 0.271N4712 28 26.6 29.4 0.01 21.2 8.5 0.281N4713 30 28.5 31.5 0.01 22.8 7.9 0.31N4714 33 31.35 34.65 0.01 25 7.2 0.331N4715 36 34.2 37.8 0.01 27.3 6.6 0.361N4716 39 37.05 40.95 0.01 29.6 6.1 0.391N4717 43 40.85 45.15 0.01 32.6 5.5 0.43

NOTE 1. TOLERANCE AND VOLTAGE DESIGNATION (VZ)The type numbers shown have a standard tolerance of 5% on the nominal Zener voltage,C for 2%, D for 1%.NOTE 2. MAXIMUM ZENER CURRENT RATINGS (IZM)Maximum Zener current ratings are based on maximum Zener voltage of the individual unitsand JEDEC 250 mW rating.NOTE 3. REVERSE LEAKAGE CURRENT (IR)

Reverse leakage currents are guaranteed and measured at VR as shown on the table.NOTE 4. MAXIMUM VOLTAGE CHANGE (VZ)Voltage change is equal to the difference between VZ at 100 A and VZ at 10 A.NOTE 5. ZENER VOLTAGE (VZ) MEASUREMENTNominal Zener voltage is measured with the device junction in thermal equilibrium at the leadtemperature at 30C 1C and 3/8 lead length.

BJT Zener-Like Circuit

Vg 0.7 V:= VZK 2 V:= Roff 10 kW:=

Find R1 and R2

R1 1 kW:= R2 1 kW:= Initial Guesses

Given

R1 R2+ Roff=

VZKR1 R2+

R2Vg=

R1

R2

Find R1 R2,( ):=

R1 6.5kW= R2 3.5kW=

55

4

4

3

3

2

2

1

1

D D

C C

B B

A A

1A


ECE 250 or ECE 351Marc E. Herniter

BJT Zener Like Circuit


Date: Sheet of


Name: Class:

Vx

0

Q1

Q2N3904

+

R1{0.65*MULT}

+

-

V1DC = 0

+

R2

{0.35*MULT}

PARAMETERS:Mult = 1000

Date/Time run: 09/03/03 10:38:05** Profile: "SCHEMATIC1-DC Sweep" [ C:\Website\Rose_Classes\ECE454\Notes\OrCAD\BJT Zener Notes\bjt...

Temperature: 27.0

Date: September 03, 2003 Page 1 Time: 10:45:48

(A) bjt zener -SCHEMATIC1-DC Sweep.dat (active)

V_V1

0V 0.5V 1.0V 1.5V 2.0V 2.5V 3.0V-I(V1)

0A

20mA

40mA

60mA

80mA

100mA

120mAZener Current

-1/slope=Zener off resistance

-1/slope=Zener On Resistance

+-

V1DC = 0

PARAMETERS:Mult = 1000

Q1

Q2N3904

+

R2

{0.35*MULT}

+

R1{0.65*MULT}

Vx

0

Date/Time run: 09/03/03 10:55:50** Profile: "SCHEMATIC1-DC Sweep" [ C:\Website\Rose_Classes\ECE454\Notes\OrCAD\BJT Zener Notes\bjt...

Temperature: 27.0


(A) bjt zener -SCHEMATIC1-DC Sweep.dat (active)

V_V1

0V 0.5V 1.0V 1.5V 2.0V 2.5V 3.0V-I(V1)

0A

0.2A

0.4A

0.6A

0.8A

1.0AZener Current

55

4

4

3

3

2

2

1

1

D D

C C

B B

A A

27.73mV

-27.73mV

566.0mV

566.0mV

1A


123Marc E. Herniter

Push-Pull Amplifier with BJT Zener Bias

01ECE250 or ECE351


Date: Sheet of



VEE

Vcc

VEE

0

Vcc

+

RB1

2.7k

5.545mA

+

-

V1DC = 15

+

RB2

2.7K

Q19

ZTX550

Q13TIP32

+

-

V2DC = 15

+

R1

6.5

+

RE1

0.4720.05nA

Q14

Q2N3904

Q16ZTX450

Q3TIP31

+

R2

3.5

+

RE2

0.47

55

4

4

3

3

2

2

1

1

D D

C C

B B

A A

39.07mV

1.112V

-1.112V

37.88mV

40.26mV

1A


123Marc E. Herniter


01ECE250 or ECE351


Date: Sheet of



VEE

Vcc

VEE

0

Vcc

+

RB1

2.7k

5.144mA

+

-

V1DC = 15

+

RB2

2.7K

Q19

ZTX550

Q13TIP32

+

-

V2DC = 15

+

R1

6.5k

+

RE1

0.472.541mA

Q14

Q2N3904

Q16ZTX450

Q3TIP31

+

R2

3.5k

+

RE2

0.47

55

4

4

3

3

2

2

1

1

D D

C C

B B

A A

2.201V

0V819.3mV

915.6mV

819.3mV

1A


123Marc E. Herniter


01ECE250 or ECE351


Date: Sheet of



VEE

Vcc

Vout

VEE

0

Vcc

0

0

+

Load

4 204.8mA

+

RB1

2.7k

4.740mA

+

-

V1DC = 15

+

RB2

2.7K

Q19

ZTX550

Q13TIP32

+

-

V2DC = 15

+

R1

6.5k

+

RE1

0.47204.8mA

Q14

Q2N3904

Q16ZTX450

Q3TIP31

+

R2

3.5k

+

RE2

0.47

-

+

Tran

sien

t A

naly

sis V3

AMPLITUDE = 10FREQUENCY = 1k

Date/Time run: 09/03/03 11:21:14** Profile: "SCHEMATIC1-Transient" [ C:\WEBSITE\ROSE_CLASSES\ECE454\NOTES\OrCAD\BJT Zener Notes\pu...

Temperature: 27.0


(A) push-pull amplifier with bjt zener-SCHEMATIC1-Transient.dat (active)

Time

0s 0.5ms 1.0ms 1.5ms 2.0msV(Vout)

-10V

-5V

0V

5V

10VOutput Voltage

55

4

4

3

3

2

2

1

1

D D

C C

B B

A A

1.073V

-1.152V

-1.395mV

1.012mV

0V

-180.9uV

-180.9uV

1A


123Marc E. Herniter


01ECE250 or ECE351


Date: Sheet of



VEE

Vcc

Vout

VEE

0

Vcc

0

0Vcc

VEE

+

Load

4

+

RB1

2.7k

U1A

LM324

1

3

2

411

OUT

+

-

V+

V-

+

-

V1DC = 15

+

RB2

2.7K

Q19

ZTX550

Q13TIP32

+

-

V2DC = 15

+

R1

6.5k

+

RE1

0.47

2.539mA

Q14

Q2N3904

Q16ZTX450

Q3TIP31

+

R2

3.5k

+

RE2

0.47

-

+

Tran

sien

t A

naly

sis V3

FREQUENCY = 1kAMPLITUDE = 10

Date/Time run: 09/03/03 11:32:13** Profile: "SCHEMATIC1-Transient" [ C:\WEBSITE\ROSE_CLASSES\ECE454\NOTES\OrCAD\BJT Zener Notes\pu...

Temperature: 27.0


(A) push-pull amplifier with bjt zener-SCHEMATIC1-Transient.dat (active)

Time

0s 0.5ms 1.0ms 1.5ms 2.0msV(Vout)

-10V

-5V

0V

5V

10V

-1/slope=on: -1/slope = Zener On Resistance

-1/slope=off: -1/slope = Zener Off ResistanceRon1: R1 + R2 = 10 OhmsRon2: R1 + R2 = 100 OhmsR1 + R2 = 1000 Ohms: R1 + R2 = 1000 OhmsShifted: Waveform is now shifted because of the bias shift.

bjt zener notes

Documents

zener mode

glass data sheet500

voltsgeneral data

complete voltage range

andsharp breakdown voltage

max note

lead temperature cp

storage temperature