PROFET® BTS 308

Semiconductor Group

Page 1 of 14

2003-Oct-01

Smart Highside Power Switch

Features

• Overload protection

• Current limitation

• Short circuit protection

• Thermal shutdown

• Overvoltage protection (including load dump)

• Fast demagnetization of inductive loads

• Undervoltage and overvoltage shutdown with

auto-restart and hysteresis

• Open drain diagnostic output

• Open load detection in OFF-state

• CMOS compatible input

• 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

• Most suitable for inductive loads

• Replaces electromechanical relays, fuses and discrete circuits

• Fast switching

• Not suitable for lamp loads

General Description

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

feedback, monolithically integrated in Smart SIPMOS

+ Vbb

IN

ST

Signal GND

ESD

PROFET

OUT

GND

Logic

Voltage

sensor

Voltage

source

Open load

detection

Short circuit

detection

Charge pump

Level shifter

Temperature

sensor

Rectifier

Limit for

unclamped

ind. loads

Gate

protection

Current

limit

2

4

1

3

5

Load GND

Load

Overvoltage

protection

1

)

connection, reverse load current limited by connected load.

Product Summary

Overvoltage protection

60

V

Operating voltage

4.7 ... 34 V

On-state resistance

300 m

Ω

Load current (ISO)

1.3

A

TO-220AB/5

5

Standard

1

5

Straight leads

1

5

SMD