ORDERING INFORMATION
Part Number
WT7527–NN160–1D
WT7527–NN161–1D
WT7527–SN160–1D
WT7527–SN161–1D
Package Type
16-Pin Plastic DIP, Pb-free
16-Pin Plastic SOP, Pb-free
WT7527
Rev. 1.20
Note
PIN DESCRIPTION
Pin Name
PGI
GND
FPOB
PSONB
I12A
RI
I12B
V12B
VX
I5
I33
V12A
V33
V5
VCC
PGO
I/O
Description
I Power good input signal pin
P Ground
O Fault protection output pin, open drain output
I On/Off switch input
I 12VA over current protection sense input
I Current sense adjust input
I 12VB over current protection sense input
I 12VB over voltage & under voltage & over current sense input
pin
I Extra protection sense input
I 5V over current protection sense input
I 3.3V over current protection sense input
I 12VA over voltage & under voltage & over current sense input
pin
I 3.3V over voltage & under voltage & over current sense input pin
I 5V over voltage & under voltage & over current sense input pin
I Power supply
O Power good output signal pin, open drain output
Weltrend Semiconductor, Inc.
Page 3