Product Summary

The TL431IDBZR is a three-terminal adjustable shunt regulator, 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. The TL431IDBZR has a typical output impedance of 0.2Ω. Active output circuitry provides a very sharp turn-on characteristic, making the TL431IDBZR excellent replacements for Zener diodes in many applications, such as onboard regulation, adjustable power supplies, and switching power supplies.

Parametrics

TL431IDBZR absolute maxing ratings: (1)Cathode voltage, VKA: 37V; (2)Continuous cathode current range, IKA: -100 mA to 150 mA; (3)Reference input current range: -50μA to 10 mA; (4)Operating virtual junction temperature, TJ: 150℃; (5)Storage temperature range, Tstg: -65℃ to 150℃.

Features

TL431IDBZR features: (1)Operation From -40℃ to 125℃; (2)Reference Voltage Tolerance at 25℃: 0.5% B Grade; 1% A Grade; 2% Standard Grade; (3)Low Output Noise; (4)0.2-Ω Typical Output Impedance; (5)Sink-Current Capability 1 mA to 100 mA; (6)Adjustable Output Voltage Vref to 36 V.

Diagrams

TL431IDBZR block diagram

Image Part No Mfg Description Data Sheet Download Pricing
(USD)		 Quantity
TL431IDBZR
TL431IDBZR
Texas Instruments
Voltage & Current References Adjustable Precision Shunt Regulator
Data Sheet
0-1: $0.29
1-25: $0.19
25-100: $0.16
100-250: $0.13
TL431IDBZR,215
TL431IDBZR,215
NXP Semiconductors
Voltage & Current References SHUNT REGULATOR PROTECTION
Data Sheet
0-1: $0.06
1-25: $0.06
25-100: $0.06
100-250: $0.05
TL431IDBZRG4
TL431IDBZRG4
Texas Instruments
Voltage & Current References Adjustable Precision Shunt Regulator
Data Sheet
0-1: $0.22
1-25: $0.16
25-100: $0.14
100-250: $0.12