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WT6621
Dual USB Power Control Switch
Version1.0
27 March, 2000
Weltrend Semiconductor, Inc. All Rights Reserved
PIN ASSIGNMENT
1
2
3
4
8
7
6
5
/EN1
/FG1
/FG2
/EN2
OUT1
IN
GND
OUT2
WT6621
PIN DESCRIPTIONS
Pin Number
Pin Name
I/O
Function Descriptions
1
/EN1
I
Enable input: Logic Compatible input to turns the
power switch on. (-NX Active Low, -PX active
High)
2
/FG1
O
Fault Flag: Logic output, open drain output. /FG1
is asserted active low to indicate Overcurrent,
UVLO, and Thermal Shutdown.
3
/FG2
O
Fault Flag: Logic output, open drain output. /FG2
is asserted active low to indicate Overcurrent,
UVLO, and Thermal Shutdown.
4
/EN2
I
Enable input: Logic Compatible input to turns the
power switch on. (-NX Active Low, -PX active
High)
5
OUT2
O
Power Switch output
6
GND
Ground
7
IN
I
Supply Input
8
OUT1
O
Power Switch output
Package and Ordering Information
Part Number
Enable (/EN)
Package
WT6621-SL
Active Low
8-pin SOIC
WT6621-DL
Active Low
8-pin DIP
WT6621-SH
Active High
8-pin SOIC
WT6621-DH
Active High
8-pin DIP
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