PROFET® Data Sheet BTS 443 P

Infineon Technologies AG

Page 1 of 13

2003-Oct-01

Smart Highside Power Switch

Reversave



• Reverse battery protection by self turn on of

power MOSFET

Features

• Short circuit protection

• Current limitation

• Overload protection

• Thermal shutdown

• Overvoltage protection (including load dump)

• Loss of ground protection

• Loss of V

charged inductive loads)

• Very low standby current

• Fast demagnetisation of inductive loads

• Electrostatic discharge (ESD) protection

• Optimized static electromagnetic compatibility (EMC)

Diagnostic Function

• Proportional load current sense (with defined fault signal during thermal shutdown)

Application

• Power switch with current sense diagnostic feedback for 12V and 24 V DC grounded loads

• All types of resistive, capacitive and inductive loads (no PWM with inductive loads)

• Replaces electromechanical relays, fuses and discrete circuits

General Description

N channel vertical power FET with charge pump, current controlled input and diagnostic feedback with load

current sense, integrated in Smart SIPMOS

IN

Charge pump

Level shifter

Rectifier

Limit for

unclamped

ind. loads

Gate

protection

Current

limit

2

Overvoltage

protection

+ Vbb

PROFET



OUT

3 & Tab

1, 5

Load GND

Load

Output

Voltage

detection

R

IS

IS

4

Logic GND

Voltage

sensor

Voltage

source

Current

Sense

Logic

ESD

Temperature

sensor

R bb

V

IN

Product Summary

Operating voltage

5.0 ... 36

V

On-state resistance

16 m

Ω

Load current (ISO)

25

A

Current limitation

65

A

Package

TO-252-5-1