2.495V
DESCRIPSION
The TL431 is a three-terminal adjustable shunt regulator with specified thermal stability over applicable temperature VREFApprox. 2.5V and 40V with two external resistors. This device has a typical dynamic output impedance of 0.2Ω. Active output circuitry provides a very sharp turn-on characteristic, making this device excellent replacement for zener diodes in many applications. The TL431 is characterized for operation from -40℃to +125℃.
FEATURES
Programmable Output Voltage to 40V
Guaranteed 0.5% Reference Voltage Tolerance
Low 0.2Ω Typ. Dynamic Output Impedance
Cathode Current RangeContinuous – 100 ~ 150 mA
Equivalent Full Range Temperature Coefficient of 50PPM/℃
Temperature Compensated For Operation Over Full Rate Operating Temperature Range
Low Output Noise Voltage
Fast Turn-on Response
TO-92, SOT-89 or SOT-23 3L Package
APPLICATION
Shunt Regulator
Precision High-Current Series Regulator
High-Current Shunt Regulator
Crowbar Circuit
PWM Converter With Reference
Voltage Monitor
Precision Current Limiter