Datasheet TL431, TL431A, TL432, TL432A (Texas Instruments)
| Manufacturer | Texas Instruments |
| Description | Adjustable precision shunt regulators |
| Pages / Page | 32 / 1 — Equivalent Full-Range Temperature. Sink-Current Capability . 1 mA to 100 … |
| File Format / Size | PDF / 520 Kb |
| Document Language | English |
Equivalent Full-Range Temperature. Sink-Current Capability . 1 mA to 100 mA. Coefficient . 30 ppm/. Low Output Noise. 0.2-
Model Line for this Datasheet
TL431A
Text Version of Document
SLVS005V − JULY 1978 − REVISED NOVEMBER 2003 D
Equivalent Full-Range Temperature
D
Sink-Current Capability . 1 mA to 100 mA Coefficient . 30 ppm/
°
C
D
Low Output Noise
D
0.2-
Ω
Typical Output Impedance
D
Adjustable Output Voltage . Vref to 36 V TL431, TL431A . D PACKAGE TL431, TL431A . P, PS, OR PW PACKAGE TL431 . PK PACKAGE (TOP VIEW) (TOP VIEW) (TOP VIEW)
CATHODE 1 8 REF CATHODE 1 8 REF CATHODE ANODE 2 7 ANODE NC 2 7 NC ANODE 3 6 ANODE NC 3 6 ANODE ANODE NC 4 5 NC NC 4 5 NC REF NC − No internal connection
TL431, TL431A . LP PACKAGE TL431, TL431A . DBV PACKAGE TL431 . KTP PACKAGE (TOP VIEW) (TOP VIEW) (TOP VIEW)
CATHODE 1 NC 5 ANODE CATHODE 2 NU ANODE ANODE CATHODE 3 4 REF ANODE REF REF NC − No internal connection NU − Make no external connection
TL432, TL432A . DBV PACKAGE (TOP VIEW)
1 NC 5 REF 2 ANODE NC 3 4 CATHODE NC − No internal connection
description/ordering information
The TL431, TL431A, TL432, and TL432A 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 Vref (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 TL431C, TL431AC, TL432C, and TL432AC are characterized for operation from 0°C to 70°C, and the TL431I, TL431AI, TL432I, and TL432AI are characterized for operation from −40°C to 85°C. 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. !"# $"%&! '#( Copyright 2003, Texas Instruments Incorporated '"! $#!! $# )# # #* "# '' +,( '"! $!#- '# #!#&, !&"'# #- && $##( POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 1
Equivalent Full-Range Temperature
D
Sink-Current Capability . 1 mA to 100 mA Coefficient . 30 ppm/
°
C
D
Low Output Noise
D
0.2-
Ω
Typical Output Impedance
D
Adjustable Output Voltage . Vref to 36 V TL431, TL431A . D PACKAGE TL431, TL431A . P, PS, OR PW PACKAGE TL431 . PK PACKAGE (TOP VIEW) (TOP VIEW) (TOP VIEW)
CATHODE 1 8 REF CATHODE 1 8 REF CATHODE ANODE 2 7 ANODE NC 2 7 NC ANODE 3 6 ANODE NC 3 6 ANODE ANODE NC 4 5 NC NC 4 5 NC REF NC − No internal connection
TL431, TL431A . LP PACKAGE TL431, TL431A . DBV PACKAGE TL431 . KTP PACKAGE (TOP VIEW) (TOP VIEW) (TOP VIEW)
CATHODE 1 NC 5 ANODE CATHODE 2 NU ANODE ANODE CATHODE 3 4 REF ANODE REF REF NC − No internal connection NU − Make no external connection
TL432, TL432A . DBV PACKAGE (TOP VIEW)
1 NC 5 REF 2 ANODE NC 3 4 CATHODE NC − No internal connection
description/ordering information
The TL431, TL431A, TL432, and TL432A 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 Vref (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 TL431C, TL431AC, TL432C, and TL432AC are characterized for operation from 0°C to 70°C, and the TL431I, TL431AI, TL432I, and TL432AI are characterized for operation from −40°C to 85°C. 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. !"# $"%&! '#( Copyright 2003, Texas Instruments Incorporated '"! $#!! $# )# # #* "# '' +,( '"! $!#- '# #!#&, !&"'# #- && $##( POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 1
