Product Summary

The TL431BVDR2G integrated circuit is a three-terminal programmable shunt regulator diode. The monolithic IC voltage reference operates as a low temperature coefficient zener which is programmable from Vref to 36 V with two external resistors. The TL431BVDR2G exhibits a wide operating current range of 1.0 mA to 100 mA with a typical dynamic impedance of 0.22 Ω. The characteristics of the reference make them excellent replacements for zener diodes in many applications such as digital voltmeters, power supplies, and op amp circuitry. The 2.5 V reference makes the TL431BVDR2G convenient to obtain a stable reference from 5.0 V logic supplies, and since the device operates as a shunt regulator, it can be used as either a positive or negative voltage reference.

Parametrics

TL431BVDR2G absolute maximum ratings: (1)Cathode to Anode Voltage: 37 V; (2)Cathode Current Range, Continuous: –100 to +150 mA; (3)Reference Input Current Range, Continuous: –0.05 to +10 mA; (4)Operating Junction Temperature: 150 ℃; (5)Operating Ambient Temperature Range: -40 to 85 ℃; (6)Storage Temperature Range: –65 to +150 ℃; (7)Total Power Dissipation @ TA = 25℃: 0.70 W; (8)Total Power Dissipation @ TC = 25℃: 1.5 W.

Features

TL431BVDR2G features: (1)Programmable Output Voltage to 36 V; (2)Voltage Reference Tolerance: ±0.4%, Typ @ 25℃; (3)Low Dynamic Output Impedance, 0.22 Ω Typical; (4)Sink Current Capability of 1.0 mA to 100 mA; (5)Equivalent Full-Range Temperature Coefficient of 50 ppm/℃ Typical; (6)Temperature Compensated for Operation over Full Rated Operating Temperature Range; (7)Low Output Noise Voltage; (8)Pb-Free Packages are Available.

Diagrams

TL431BVDR2G Representative Schematic Diagram

Image Part No Mfg Description Data Sheet Download Pricing
(USD)		 Quantity
TL431BVDR2G
TL431BVDR2G
ON Semiconductor
Voltage & Current References 2.5-36V ADJ 1-100mA
Data Sheet
0-1: $0.39
1-25: $0.31
25-100: $0.26
100-500: $0.20
Image Part No Mfg Description Data Sheet Download Pricing
(USD)		 Quantity
TL431A(B)SA-7
TL431A(B)SA-7
Diodes Inc.
Voltage & Current References Adj Precision Shunt 0.2 Ohm Vref to 36V
Data Sheet
0-2230: $0.51
2230-3000: $0.51
3000-5000: $0.49
5000-10000: $0.47
TL431A(B)W5-7
TL431A(B)W5-7
Diodes Inc.
Voltage & Current References Adj Precision Shunt 0.2 Ohm Vref to 36V
Data Sheet
0-1: $0.32
1-10: $0.27
10-100: $0.20
100-250: $0.18
TL431ACPK
TL431ACPK
Texas Instruments
Voltage & Current References Adjustable Precision Shunt Regulator
Data Sheet
0-1: $0.36
1-25: $0.24
25-100: $0.19
100-250: $0.16
TL431ACDR
TL431ACDR
Texas Instruments
Voltage & Current References Adj Shunt
Data Sheet
0-1: $0.27
1-25: $0.17
25-100: $0.15
100-250: $0.12
TL431ACL3T
TL431ACL3T
STMicroelectronics
Voltage & Current References Prog Voltage Ref 2.5 to 36V .22 Ohm
Data Sheet
0-1: $0.26
1-10: $0.17
10-100: $0.14
100-250: $0.11
TL431ACDRE4
TL431ACDRE4
Texas Instruments
Voltage & Current References Adj Shunt
Data Sheet
Negotiable