Data Sheet No.PD 60157-H
IPS521G
FULLY PROTECTED HIGH SIDE POWER MOSFET SWITCH
Features
•
•
•
•
•
•
•
Over temperature protection (with auto-restart)
Short-circuit protection (current limit)
Active clamp
E.S.D protection
Status feedback
Open load detection
Logic ground isolated from power ground
Product Summary
R
ds(on)
V
clamp
I
Limit
V
open load
100m
Ω
(max)
50V
10A
3V
Description
The IPS521G is a fully protected five terminal high side
switch with built in short circuit, over-temperature, ESD
protection, inductive load capability and diagnostic
feedback. The output current is controlled when it
reaches Ilim value. The current limitation is activated
until the thermal protection acts. The over-tempera-
ture protection turns off the high side switch if the
junction temperature exceeds Tshutdown. It will au-
tomatically restart after the junction has cooled 7
o
C
below Tshutdown. A diagnostic pin is provided for
status feedback of short-circuit, over-temperature
and open load detection. The double level shifter
circuitry allows large offsets between the logic ground
and the load ground.
Truth Table
Op. Conditions
Normal
Normal
Open load
Open load
Over current
Over current
Over-temperature
Over-temperature
In
Out
H
H
L
L
H
H
L
H
H
L (limiting)
L
L
H L (cycling)
L
L
Dg
H
L
H
H
L
L
L
L
Typical Connection
+ VCC
+ 5v
15K
Status
feedback
Rdg
Rin
Output pull-up resistor
Package
Vcc
Dg
Logic
control
Out
In
Gnd
Logic
signal
Load
8 Lead SOIC
Logic Gnd
Load Gnd
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