PRELIMINARY

PRELIMINARY

DS-LIA130-R00D

1

LIA130

Optically Isolated Error Amplifier

Pb

Part #

Description

LIA130

8 Pin DIP (50/Tube)

LIA130S

8-Pin Surface Mount (50/Tube)

LIA130STR

8-Pin Surface Mount (1000/Reel)

Applications

Features

Description

Ordering Information

Block Diagram

Amplifier in a Single Package

Standard 431-type

1

2

3

4

5

6

7

8 LED

FB

COMP

GND

NC

C

E

NC

Approvals

The LIA130 is an optically isolated amplifier with a

431-type precision programmable shunt reference

combined in the same package. The optocoupler

portion of the LIA130 comprises a Gallium Arsenide

(GaAs) light-emitting diode (LED) optically coupled to

a silicon phototransistor. The current transfer ratio of

the device is between 300% and 600%.

The combination of features in the LIA130 is optimal

for use in isolated AC-to-DC power supplies and

DC-to-DC converters. It replaces several discrete

components, saves valuable circuit board space, and

reduces complexity.

The device is available in DIP and surface-mount

packages.