电压基准源芯片RS431

Description

The RS431 and RS432 device are three-terminal adjustable shunt regulators, with a guaranteed thermal stability over applicable temperature ranges. The output voltage can be set to any value between Vref (approximately 2.5V) and 36V with two external resistors. These devices have provides a very sharp turn-on characteristic, making these devices excellent replacement for Zener diodes in many applications.

Both the RS431 and RS432 devices are offered in two grades, with initial tolerances (at 25°C) of 0.5% and 1%, for A and B grade.

Features

Reference Voltage Tolerance at 25°C

0.5% (A Grade)

1% (B Grade)

Programmable output voltage to 36V

Low dynamic output impedance 0.2Ω

Sink current capability of 0.5 to 100mA

Equivalent full-range temperature coefficient of 50ppm/°C typical

Temperature compensated for operation over full rated operating temperature range

Low output noise voltage

Fast turn on response

Operation from -40°C to 85°C

Lead-Free Packages: SOT23

Applications

Adjustable voltage and current referencing

Power supply

Zener replacement

Voltage monitoring

Comparator with integrated reference

As precision voltage reference