TS1431/1431A/1431B
Adjustable Precision Shunt Regulator
Pin Assignment: 1. Cathode 2. Reference 3. Anode
Sink Current C...
TS1431/1431A/1431B
Adjustable Precision Shunt
Regulator
Pin Assignment: 1. Cathode 2. Reference 3. Anode
Sink Current Capability up to 100mA
General Description
The TS1431/1431A/1431B integrated circuits are three-terminal programmable shunt
regulator diodes. These monolithic IC voltage references operate as a low temperature coefficient zener which is programmable from Vref to 36 volts with two external resistors. These devices exhibit a wide operating current range of 1.0 to 100mA with a typical dynamic impedance of 0.22Ω. The characteristics of these references make them excellent replacements for zener diodes in many applications such as digital voltmeters, power supplies, and op amp circuitry. The 2.5volt reference makes it convenient to obtain a stable reference from 5.0volt logic supplies, and since The TS1431/1431A/1431B operates as a shunt
regulator, it can be used as either a positive or negative stage reference. This series is offered in 3-pin TO-92 and SOT-23 package.
Features
Precision Reference Voltage TS1431 2.495V±2%
Standard Application
TS1431A 2.495V±1% TS1431B 2.495V±0.5%
o Equivalent Full Range Temp. Coefficient: 50ppm/ C
Programmable Output Voltage up to 36V Fast Turn-On Response Sink Current Capability of 1.0 to 100 mA Low Dynamic Output Impedance: 0.22Ω Low Output Noise
Ordering Information
Part No.
TS1431xCT TS1431xCX
Block Diagram
Operating Temp. (Ambient)
o -20 ~ +85 C
Package
TO-92 SOT-23
Note: Where x denotes voltage toler...