IPS521S
IPS521S is FULLY PROTECTED HIGH SIDE POWER MOSFET SWITCH manufactured by International Rectifier.
Features
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- 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 Rds(on) V clamp I Limit V open load 80mΩ (max) 50V 10A 3V
Description
The IPS521/IPS521S are fully protected five terminal high side switches with built in short-circuit , overtemperature, ESD protection, inductive load capability and diagnostic feedback. The output current is controlled when it reaches I lim value. The current limitation is activated until the thermal protection acts. The over-temperature protection turns off the high side switch if the junction temperature exceeds Tshutdown. It will automatically 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
Packages
Vcc Dg Logic control Out In Gnd
5 Lead D2Pak (SMD220) IPS521S
Logic signal
Load
Logic Gnd Load Gnd
5 Lead TO220
- IPS521
.irf.
IPS521/IPS521S
Absolute Maximum Ratings
Absolute maximum ratings indicate sustained limits beyond which damage to the device may occur. All voltage parameters are referenced to GROUND lead. (Tj = 25o C unless otherwise specified).
Symbol Parameter
Vout Voffset Vin Iin, max Vdg Idg, max Isd cont. Maximum output voltage Maximum Input voltage Maximum positive IN current Maximum diagnostic output voltage Maximum diagnostic output current Diode max. permanent current (1) (rth=62 o C/W) Isd pulsed Diode max. pulsed current (1) ESD1...