ISP452HUMA1 Infineon

ISP 452 Smart Power High-Side-Switch for Industrial Applications Features Short-circuit protection Input protection 4 Overtemperature protection with hysteresis Overload protection Overvoltage protection Switching inductive load 3 Clamp of negative output voltage with inductive loads 2 1 Undervoltage shutdown Maximum current internally limited Electrostatic discharge (ESD) protection 1 ) Reverse battery protection Package: PG-SOT 223 Type Ordering code ISP 452 SP000219823 Application C compatible power switch for 12 V DC grounded loads for industrial applications 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, monolithically integrated in Smart SIPMOS technology. Providing embedded protection functions. 1 ) With resistor R =150 in GND connection, resistor in series with IN connections, reverse load current GND limited by connected load. Page 1 of 10 2006-03-01 ISP 452 Block diagram + V bb 4 Voltage Overvoltage Current Gate source protection limit protection V ESD- Logic Diode OUT Charge pump Limit for Voltage unclamped 1 Level shifter sensor Temperature ind. loads sensor Rectifier R in 3 IN Load Logic ESD MINI-PROFET GND 2 Load GND Signal GND Pin Symbol Function 1 OUT O Protected high-side power output 2 GND - Logic ground 3 IN I Input, activates the power switch in case of logical high signal 4 Vbb + Positive power supply voltage Page 2 2006-03-01