BTS736L2
BTS736L2 is Smart High-Side Power Switch manufactured by Infineon.
Description
- - N channel vertical power MOSFET with charge pump, ground referenced CMOS patible input and diagnostic feedback, monolithically integrated in Smart SIPMOS technology. Providing embedded protective functions
Applications
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- - µC patible high-side power switch with diagnostic feedback for 5V, 12V and 24V grounded loads All types of resistive, inductive and capacitve loads Most suitable for loads with high inrush currents, so as lamps Replaces electromechanical relays, fuses and discrete circuits
Basic Functions
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- - Very low standby current CMOS patible input Fast demagnetization of inductive loads Stable behaviour at undervoltage Wide operating voltage range Logic ground independent from load ground
Protection Functions
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- - Short circuit protection Overload protection Current limitation Thermal shutdown Overvoltage protection (including load dump) with external resistor Reverse battery protection with external resistor Loss of ground and loss of Vbb protection Electrostatic discharge protection (ESD)
Block Diagram
Vbb
IN1 ST1
Logic Channel 1 Logic Channel 2 PROFET GND
OUT 1 Load 1 OUT 2 Load 2
IN2 ST2
Diagnostic Function
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- Diagnostic feedback with open drain output Open load detection in ON-state Feedback of thermal shutdown in ON-state
Semiconductor Group
1 of 14
2003-Oct-01
BTS 736 L2
Functional diagram overvoltage protection internal voltage supply logic gate control + charge pump current limit
VBB clamp for inductive load OUT1
IN1 ESD ST1 GND1 temperature sensor Open load detection LOAD
Channel 1
IN2 ST2 GND2
Control and protection circuit of channel 2 OUT2
PROFET
Pin Definitions and Functions
Pin 1,10, 11,12, 15,16, 19,20 3 7 17,18 13,14 4 8 2 6 5,9 Symbol Function Vbb Positive power supply voltage. Design the wiring for the simultaneous max. short circuit currents from channel 1 to 2 and also for low thermal resistance IN1 Input 1,2, activates channel 1,2 in case of IN2 logic high signal...