Programmable Current Sense High Side Switch
Description
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Data Sheet No.
PD60284
IR3314(S)PbF
PROGRAMMABLE CURRENT SENSE HIGH SIDE SWITCH
Features
• • • • • • • • Load current feedback Programmable over current shutdown Active clamp ESD protection Input referenced to Vcc Over temperature shutdown Reverse battery protection Lead-Free
Product Summary Rds(on) 12 mΩ max.
Vcc op.
6 to 32V Current Ratio 5300 Prog.
Ishutdown 6 to 58A Vclamp 40V Packages
Description
The IR3314(S)PbF is a fully protected 4 terminals high side switch.
The input signal is referenced to Vcc.
When the input voltage Vcc - Vin is higher than the specified threshold, the output power Mosfet is turned on.
When the Vcc - Vin is lower than the specified Vil threshold, the output Mosfet is turned off.
A current proportional to the power Mosfet current is sourced to the Ifb pin.
Over current shutdown occurs when Vst-Vin > 4.
5V.
The current shutdown threshold is adjusted by selecting the proper RIfb.
Either over current and over temperature latches off the switch.
The device is reset by pulling the input pin high.
Other integrated protections (ESD, reverse battery, active clamp) make the switch very rugged in automotive environment.
TO-220 IR3314PbF
D²Pak Pin 4 and 5 fused IR3314SPbF
Typical Connection
Vcc IN Ifb
IR3314
Battery Out
Current feeback Input
On Off
10k
Rifb Logic Ground Power Ground
Load
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1
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IR3314(S)PbF
Absolute Maximum Ratings
Absolute maximum ratings indicate sustained limits beyond which damage to the device may occur.
All voltage parameters are referenced to Vcc lead.
(Tambient=25°C unless otherwise specified).
Symbol
Parameter
Min.
-16 -16 -16 -0.
3
⎯ ⎯ ⎯ ⎯ ⎯
Max.
37 32 33 37 2.
8 100 2 4 0.
5 150
⎯
Units
V
Vcc-Vin Maximum Vcc voltage Vcc-Vin cont.
Maximum continuous Vcc voltage Vcc-Vfb Maximum Ifb voltage Vcc-Vout Maximum output voltage Ids cont.
Maximum body diode continuous current Rth=60°C/W (1) Ids pulsed Maximum body diode pulsed current (1) Pd Maximum power dissipatio...
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