TL431ILPR [TI]

TL431, TL431A, TL431B

TL432, TL432A, TL432B

ADJUSTABLE PRECISION SHUNT REGULATORS

SLVS543J − AUGUST 2004 − REVISED DECEMBER 2005

D

Operation From −40°C to 125°C

D

Reference Voltage Tolerance at 25°C

− 0.5% . . . B Grade

− 1% . . . A Grade

− 2% . . . Standard Grade

Typical Temperature Drift (TL431B)

− 6 mV (C Temp)

− 14 mV (I Temp, Q Temp)

TL431, TL431A, TL431B . . . D (SOIC) PACKAGE

(TOP VIEW)

D

D

D

D

Low Output Noise

0.2-Ω Typical Output Impedance

Sink-Current Capability . . . 1 mA to 100 mA

Adjustable Output Voltage . . . V

ref

to 36 V

D

TL431, TL431A, TL431B . . . P (PDIP), PS (SOP),

OR PW (TSSOP) PACKAGE

(TOP VIEW)

CATHODE

ANODE

ANODE

NC

1

2

3

4

8

7

6

5

REF

ANODE

ANODE

NC

CATHODE

NC

NC

NC

1

2

3

4

8

7

6

5

REF

NC

ANODE

NC

NC − No internal connection

NC − No internal connection

TL431, TL431A, TL431B . . . PK (SOT-89) PACKAGE

(TOP VIEW)

TL432, TL432A, TL432B . . . PK (SOT-89) PACKAGE

(TOP VIEW)

CATHODE

ANODE

ANODE

ANODE

REF

REF

ANODE

CATHODE

TL431, TL431A, TL431B . . . DBV (SOT-23-5) PACKAGE

(TOP VIEW)

TL432, TL432A, TL432B . . . DBV (SOT-23-5) PACKAGE

(TOP VIEW)

NC

†

1

2

3

5

4

ANODE

REF

NC

ANODE

NC

1

2

3

5

4

REF

CATHODE

CATHODE

NC − No internal connection

† Pin 2 is attached to Substrate and must be

connected to ANODE or left open.

NC − No internal connection

TL431, TL431A, TL431B . . . DBZ (SOT-23-3) PACKAGE

(TOP VIEW)

TL432, TL432A, TL432B . . . DBZ (SOT-23-3) PACKAGE

(TOP VIEW)

CATHODE

REF

1

3

2

REF

ANODE

CATHODE

1

3

2

ANODE

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of

Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

PowerFLEX is a trademark of Texas Instruments.

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of Texas Instruments

standard warranty. Production processing does not necessarily include

testing of all parameters.

Copyright



2005, Texas Instruments Incorporated

POST OFFICE BOX 655303

•

DALLAS, TEXAS 75265

1

SLVS543J − AUGUST 2004 − REVISED DECEMBER 2005

TL431, TL431A, TL431B

TL432, TL432A, TL432B

ADJUSTABLE PRECISION SHUNT REGULATORS

TL431, TL431A, TL431B . . . LP (TO-92/TO-226) PACKAGE

(TOP VIEW)

TL431A, TL431B . . . DCK (SC-70) PACKAGE

(TOP VIEW)

CATHODE

ANODE

REF

CATHODE

NC

REF

1

2

3

6

5

4

ANODE

NC

NC

NC − No internal connection

TL431 . . . KTP (PowerFLEXE/TO-252) PACKAGE

(TOP VIEW)

ANODE

CATHODE

ANODE

REF

description/ordering information

The TL431 and TL432 are three-terminal adjustable shunt regulators, with specified thermal stability over

applicable automotive, commercial, and military temperature ranges. The output voltage can be set to any value

between V

ref

(approximately 2.5 V) and 36 V, with two external resistors (see Figure 17). These devices have

a typical output impedance of 0.2

Ω.

Active output circuitry provides a very sharp turn-on characteristic, making

these devices excellent replacements for Zener diodes in many applications, such as onboard regulation,

adjustable power supplies, and switching power supplies. The TL432 has exactly the same functionality and

electrical specifications as the TL431, but has different pinouts for the DBV, DBZ, and PK packages.

Both the TL431 and TL432 devices are offered in three grades, with initial tolerances (at 25°C) of 0.5%, 1%,

and 2%, for the B, A, and standard grade, respectively. In addition, low output drift vs temperature ensures good

stability over the entire temperature range.

The TL43xxC devices are characterized for operation from 0°C to 70°C, the TL43xxI devices are characterized

for operation from −40°C to 85°C, and the TL43xxQ devices are characterized for operation from −40°C to

125°C.

2

POST OFFICE BOX 655303

•

DALLAS, TEXAS 75265

TL431, TL431A, TL431B

TL432, TL432A, TL432B

ADJUSTABLE PRECISION SHUNT REGULATORS

SLVS543J − AUGUST 2004 − REVISED DECEMBER 2005

V

ref

TOLERANCE (25°C) = 2%

TL431, TL432 ORDERING INFORMATION

TA

PDIP (P)

SOIC (D)

SOP (PS)

PACKAGE†

Tube of 50

Tube of 75

Reel of 2500

Reel of 2000

Reel of 3000

Reel of 250

SOT-23-5 (DBV)

Reel of 3000

Reel of 250

Reel of 3000

Reel of 250

SOT-23-3 (DBZ)

0 C 70°C

0°C to 70 C

Reel of 3000

Reel of 250

SOT-89 (PK)

Reel of 1000

Bulk of 1000,

straight lead

TO-226/TO-92 (LP)

Ammo of 2000,

formed lead

Reel of 2000,

formed lead

Tube of 150

TSSOP (PW)

PDIP (P)

SOIC (D)

Reel of 2000

Tube of 50

Tube of 75

Reel of 2500

Reel of 3000

Reel of 250

SOT-23-5 (DBV)

Reel of 3000

Reel of 250

Reel of 3000

Reel of 250

−40°C 85°C

−40 C to 85 C

SOT-23-3 (DBZ)

Reel of 3000

Reel of 250

SOT-89 (PK)

Reel of 1000

Bulk of 1000,

straight lead

TO-226/TO-92 (LP)

Ammo of 2000,

formed lead

Reel of 2000,

formed lead

ORDERABLE

PART NUMBER

TL431CP

TL431CD

TL431CDR

TL431CPSR

TL431CDBVR

TL431CDBVT

TL432CDBVR

TL432CDBVT

TL431CDBZR

TL431CDBZT

TL432CDBZR

TL432CDBZT

TL431CPK

TL432CPK

TL431CLP

TL431CLPM

TL431CLPR

TL431CPW

TL431CPWR

TL431IP

TL431ID

TL431IDR

TL431IDBVR

TL431IDBVT

TL432IDBVR

TL432IDBVT

TL431IDBZR

TL431IDBZT

TL432IDBZR

TL432IDBZT

TL431IPK

TL432IPK

TL431ILP

TL431ILPM

TL431ILPR

TL431I

T4I_

3I

2B

T3I_

T4I_

T3I_

TL431I

T431

TL431IP

TL431C

T4C_

43

T3C_

T4C_

T3C_

TL431C

T431

TOP-SIDE

MARKING‡

TL431CP

PREVIEW

2A

† Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are

available at www.ti.com/sc/package.

‡ DBV/DBZ: The actual top-side marking has one additional character that designates the assembly/test site.

POST OFFICE BOX 655303

•

DALLAS, TEXAS 75265

3

SLVS543J − AUGUST 2004 − REVISED DECEMBER 2005

TL431, TL431A, TL431B

TL432, TL432A, TL432B

ADJUSTABLE PRECISION SHUNT REGULATORS

V

ref

TOLERANCE (25°C) = 2%

TL431, TL432 ORDERING INFORMATION (CONTINUED)

TA

PACKAGE†

Reel of 3000

SOT-23-5 (DBV)

Reel of 250

Reel of 3000

Reel of 250

Reel of 3000

−40°C to 125°C

SOT-23-3 (DBZ)

Reel of 250

Reel of 3000

Reel of 250

SOT-89 (PK)

Reel of 1000

Reel of 1000

SC-70 (DCK)

Reel of 250

ORDERABLE

PART NUMBER

TL431QDBVR

TL431QDBVT

TL432QDBVR

TL432QDBVT

TL431QDBZR

TL431QDBZT

TL432QDBZR

TL432QDBZT

TL431QPK

TL432QPK

TL431QDCKR

TL431QDCKT

T6_

T3Q_

T4Q_

3Q

2C

T3Q_

T4Q_

TOP-SIDE

MARKING‡

† Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are

available at www.ti.com/sc/package.

‡ DBV/DBZ/DCK: The actual top-side marking has one additional character that designates the assembly/test site.

4

POST OFFICE BOX 655303

•

DALLAS, TEXAS 75265

TL431, TL431A, TL431B

TL432, TL432A, TL432B

ADJUSTABLE PRECISION SHUNT REGULATORS

SLVS543J − AUGUST 2004 − REVISED DECEMBER 2005

V

ref

TOLERANCE (25°C) = 1%

TL431A, TL432A ORDERING INFORMATION

TA

PDIP (P)

SC-70 (DCK)

SOIC (D)

SOP (PS)

PACKAGE†

Tube of 50

Reel of 3000

Reel of 250

Tube of 75

Reel of 2500

Reel of 2000

Reel of 3000

Reel of 250

SOT-23-5 (DBV)

Reel of 3000

Reel of 250

Reel of 3000

Reel of 250

0°C to 70 C

0 C 70°C

SOT-23-3 (DBZ)

Reel of 3000

Reel of 250

SOT-89 (PK)

Reel of 1000

Bulk of 1000,

straight lead

Ammo of 2000,

formed lead

TO-226/TO-92 (LP)

Reel of 2000,

formed lead

Reel of 2000,

formed lead

TSSOP (PW)

Tube of 150

Reel of 2000

ORDERABLE

PART NUMBER

TL431ACP

TL431ACDCKR

TL431ACDCKT

TL431ACD

TL431ACDR

TL431ACPSR

TL431ACDBVR

TL431ACDBVT

TL432ACDBVR

TL432ACDBVT

TL431ACDBZR

TL431ACDBZT

TL432ACDBZR

TL432ACDBZT

TL431ACPK

TL432ACPK

TL431ACLP

TL431ACLPM

TL431AC

TL431ACLPR

TL431ACLPRE3

TL431ACPW

TL431ACPWR

T431A

T4B_

4A

2D

TAC_

T4B_

TAC_

431AC

T431A

T4_

TOP-SIDE

MARKING‡

TL431ACP

† Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are

available at www.ti.com/sc/package.

‡ DBV/DBZ/DCK: The actual top-side marking has one additional character that designates the assembly/test site.

POST OFFICE BOX 655303

•

DALLAS, TEXAS 75265

5