PROFET® Data Sheet BTS550P

Infineon Technologies AG

1 of 15

2003-Oct-01

Smart Highside High Current Power Switch

Reversave



• Reverse battery protection by self turn on of

power MOSFET

Features

• Overload protection

• Current limitation

• Short circuit protection

• Overtemperature protection

• Overvoltage protection (including load dump)

• Clamp of negative voltage at output

• Low ohmic inverse current operation

• Diagnostic feedback with load current sense

• Open load detection via current sense

• Loss of V

2)

• Electrostatic discharge (ESD) protection

Application

• Power switch with current sense diagnostic

feedback for 12 V and 24 V DC grounded loads

• Most suitable for loads with high inrush current

like lamps and motors; all types of resistive and

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

2)

Additional external diode required for energized inductive loads (see page 9).

Product Summary

Overvoltage protection

62

V

Output clamp

44

V

Operating voltage

5.0 ... 34

V

On-state resistance

3.6 m

Ω

Load current (ISO)

115

A

Short circuit current limitation

220

A

Current sense ratio

21000

TO-218AB/5

5

1

Straight leads