PROFET® BTS 640 S2

Semiconductor Group

Page 1 of 15

2003-Oct-01

Smart Sense High-Side

Power Switch

Features

• Short circuit protection

• Current limitation

• Proportional load current sense

• CMOS compatible input

• Open drain diagnostic output

• Fast demagnetization of inductive loads

• Undervoltage and overvoltage shutdown with

auto-restart and hysteresis

• Overload protection

• Thermal shutdown

• Overvoltage protection including load dump (with

external GND-resistor)

• Reverse battery protection (with external GND-resistor)

• Loss of ground and loss of V

• Electrostatic discharge (ESD) protection

Application

• µC compatible power switch with diagnostic feedback for 12 V and 24 V DC grounded loads

• All types of resistive, inductive and capacitve loads

• Replaces electromechanical relays, fuses and discrete circuits

General Description

N channel vertical power FET with charge pump, ground referenced CMOS compatible input and diagnostic

feedback, proportional sense of load current, monolithically integrated in Smart SIPMOS

Providing embedded protective functions.

Block Diagram

IN

ST

ESD

Logic

Voltage

sensor

Voltage

source

Charge pump

Level shifter

Temperature

sensor

Rectifier

Limit for

unclamped

ind. loads

Gate

protection

Current

limit

3

1

Signal GND

GND

2

Overvoltage

protection

+ Vbb

PROFET

OUT

4

6, 7

Load GND

Load

GND

RO

Current

Sense

Output

Voltage

detection

R

IS

IS

5

Product Summary

Operating voltage

V

bb(on)

5.0 ... 34

V

On-state resistance

R

ON

30 m

Ω

Load current (ISO)

I

L(ISO)

12.6

A

Current limitation

I

L(SCr)

24

A

Package

TO220-7-11

TO263-7-2

TO220-7-12

1

1

1

Standard (staggered)

SMD

Straight