Smart High-Side Power Switch Smart High-Side Power Switch PROFET BTS712N1 Data Sheet Rev 1.3, 2010-03-16 Automotive Power Smart High-Side Power Switch BTS712N1 Smart Four Channel Highside Power Switch Product Summary Features Overvoltage Protection V 43 V bb(AZ) Overload protection V 5.0 ... 34 V Operating voltage bb(on) Current limitation two parallel four parallel active channels: one Short-circuit protection On-state resistance R 200 100 50 m ON Thermal shutdown Overvoltage protection Nominal load current 1.9 2.8 4.4 A (including load dump) Current limitation 4 4 4 A Fast demagnetization of inductive loads 1 ) Reverse battery protection Undervoltage and overvoltage shutdown with auto-restart and hysteresis P-DSO-20 PG-DSO20 Open drain diagnostic output Open load detection in OFF-state CMOS compatible input Loss of ground and loss of V protection bb Electrostatic discharge (ESD) protection Application C compatible power switch with diagnostic feedback for 12 V and 24 V DC grounded loads All types of resistive, inductive and capacitive loads Replaces electromechanical relays 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. Providing embedded protective functions. Pin Definitions and Functions Pin configuration (top view) Pin Symbol Function 1,10, V Positive power supply voltage. Design the bb V 1 20V bb bb 11,12, wiring for the simultaneous max. short circuit GND1/2 2 19 V 15,16, currents from channel 1 to 4 and also for low bb IN1 3 18 OUT1 19,20 thermal resistance ST1/2 4 17 OUT2 3 IN1 Input 1 .. 4, activates channel 1 .. 4 in case of IN2 5 16 V 5 IN2 logic high signal bb GND3/4 6 15 V 7 IN3 bb 9 IN4 IN3 7 14 OUT3 18 OUT1 Output 1 .. 4, protected high-side power output ST3/4 8 13 OUT4 17 OUT2 of channel 1 .. 4. Design the wiring for the IN4 9 12 V bb 14 OUT3 max. short circuit current V 10 11 V bb bb 13 OUT4 4 ST1/2 Diagnostic feedback 1/2 of channel 1 and channel 2, open drain, low on failure 8 ST3/4 Diagnostic feedback 3/4 of channel 3 and channel 4, open drain, low on failure 2 GND1/2 Ground 1/2 of chip 1 (channel 1 and channel 2) 6 GND3/4 Ground 3/4 of chip 2 (channel 3 and channel 4) 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 2 Rev 1.3, 2010-03-16