BTS 621 L1

Semiconductor Group

9

GND disconnect with GND pull up

PROFET

V

IN2

ST

OUT2

GND

bb

V

bb

1

2

4

3

5

IN1

OUT1

6

7

V

IN1

V

IN2

V

ST

V

GND

load

PROFET

V

IN2

ST

OUT2

GND

bb

V

bb

1

2

4

3

5

IN1

OUT1

6

7

high

Normal load current can be handled by the PROFET

itself.

inductive load

PROFET

V

IN2

ST

OUT2

GND

bb

1

2

4

3

5

IN1

OUT1

6

7

V

bb

high

D

If other external inductive loads L are connected to the PROFET,

additional elements like D are necessary.

Inductive Load switch-off energy

dissipation

PROFET

V

IN

ST

OUT

GND

bb

=

E

E

E

E AS

bb

L

R

ELoad

L

RL

{

Z

L

Energy stored in load inductance:

2

L

While demagnetizing load inductance, the energy

dissipated in PROFET is

·

)

Maximum allowable load inductance for

1

10

100

1000

10000

3579

11