CS294
Package Pin Description
PACKAGE PIN #
PIN SYMBOL
FUNCTION
8 Lead PDIP
1
2
3
4
5
V
FB
Filter
Signal Common
Gnd
SCR Trigger
The V
FB
pin is the inverting input to the on-chip operational
amplifier.
The Filter pin is the non-inverting input to the on-chip opera-
tional amplifier.
The Signal Common pin connects to +V
S
/2, to a 20k�½ resistor
tied to V
FB
and to a 10k�½ resistor tied to Filter.
The Gnd pin is the power return terminal
The SCR Trigger pin drives the silicon controlled rectifier dur-
ing fault conditions. An internal 4.7k�½ resistor between this pin
and Gnd holds the SCR off in non-fault conditions.
The +V
S
pin is the power input to the IC.
The Amp
OUT
pin is the output of the on-chip operational ampli-
fier.
The Detect pin is the fault detector input.
6
7
8
+V
S
Amp
OUT
Detect
3
CHERRY [ CHERRY SEMICONDUCTOR CORPORATION ]
