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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 Ilim 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 7oC 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.
IPS521 Maximum Ratings
Symbol
Definition
Min.
Max.
Units
Test Conditions
Vout
Maximum output voltage
Vcc-50
Vcc+0.3
V
Voffset
Maximum logic ground to load ground offset
Vcc-50
Vcc+0.3
Vin
Maximum Input voltage
-0.3
7
Iin, max
Maximum positive IN current
-5
10
mA
Vdg
Maximum diagnostic output voltage
-0.3
7
V
Idg, max
Maximum diagnostic output current
-1
10
mA
Isd cont.
Diode max. permanent current (1) (rth=62oC/W)
-
2.2
A
Isd pulsed
Diode max. pulsed current (1)
-
10
ESD1
Electrostatic discharge voltage (Human Body)
-
4
KV
C=100pF, R=1500,
ESD2
Electrostatic discharge voltage (Machine Model)
-
0.5
C=200pF, R=0, L=10H
Pd
Maximum power dissipation(1) (TC=25oC) IPS521 (TC=25oC) IPS521S
-
40
W
-
1.56
Tj max.
Max. storage & operating junction temp.
-40
+150
oC
Tlead
Lead temperature (soldering 10 seconds)
-
300
Vcc max.
Maximum Vcc voltage
-
50
V
IPS521 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