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BTS307
(Rev.:2003)

Smart High-Side Power Switch

Infineon Technologies 

BTS 307

Inductive and overvoltage output clamp

+ Vbb

VZ

VON

OUT

GND

PROFET

VON clamped to -- V typ.

Overvolt. and reverse batt. protection

+ Vbb

R IN IN R I

V Z2

Logic

R ST ST

V Z1

PROFET

R GND

GND

Signal GND

VZ1 = 6.2 V typ., VZ2 = 70 V typ., RGND = 150 Ω,

RST= 15 kΩ, RI= 20 kΩ typ.

Open-load detection

OFF-state diagnostic condition: VOUT > 3 V typ.; IN low

OFF

I L(OL)

Logic

unit

Open load

detection

V OUT

Signal GND

GND disconnect

+5V

IN

2

12k

ST

4

Vbb VIN VST

3

Vbb

PROFET

OUT

5

GND

1 VGND

For Vbb=24V and VIN=0V: VST>2.8V @ IST ≥ 0 if pulled up as shown.

Any kind of load. In case of Input=high is VOUT ≈ VIN - VIN(T+) .

GND disconnect with GND pull up

IN

2

ST

4

3

Vbb

PROFET

GND

1

OUT

5

Vbb

VIN VST

VGND

Any kind of load. If VGND > VIN - VIN(T+) device stays off

Due to VGND >0, no VST = low signal available.

Vbb disconnect with energized inductive

load

3

high

IN

Vbb

2

ST

4

PROFET

GND

OUT

5

1

Vbb

Normal load current can be handled by the PROFET

itself.

Semiconductor Group

6

2003-Oct-01

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