PROFET BTS409L1 Smart High-Side Power Switch Product Summary Overvoltage protection V 43 V bb(AZ) V 5.0 ... 34 V Operating voltage bb(on) On-state resistance R 200 ON m Features Load current (ISO) I 2.3 A L(ISO) Overload protection Current limitation I 4 A L(SCr) Current limitation Short circuit protection Thermal shutdown Overvoltage protection (including load dump) PG-TO263-5-2 Fast demagnetization of inductive loads 1 ) Reverse battery protection Undervoltage and overvoltage shutdown with auto-restart and hysteresis Open drain diagnostic output Open load detection in ON-state CMOS compatible input Loss of ground and loss of V protection bb Electrostatic discharge (ESD) protection Green Product (RoHS compliant) AEC Qualified Application C compatible power switch with diagnostic feedback for 12 V and 24 V DC grounded loads All types of resistive, inductive and capacitve loads Replaces electromechanical relays, fuses and discrete circuits General Description N channel vertical power FET with charge pump, ground referenced CMOS compatible input and diagnostic feedback, monolithically integrated in Smart SIPMOS technology. Fully protected by embedded protection functions. + V bb 3 Voltage Gate Overvoltage Current source protection protection limit V Logic OUT Limit for Voltage Charge unclampe 5 pump sensor Temperature Level idnd . loads shifter sensor Rectifier 2 IN Open load Load Short to Vbb Logic ESD detection R 4 ST O GND PROFET GND 1 Load GND Signal GND 1) With external current limit (e.g. resistor R =150 ) in GND connection, resistor in series with ST GND connection, reverse load current limited by connected load. Data Sheet 1 2013-10-10 BTS409L1 Pin Symbol Function 1 GND - Logic ground 2 IN I Input, activates the power switch in case of logical high signal 3 V + Positive power supply voltage, bb the tab is shorted to this pin 4 ST S Diagnostic feedback, low on failure 5 OUT O Output to the load (Load, L) Data Sheet 2 2013-10-10