PROFET® ITS 410 E2

Infineon Technologies AG

8

2006-Mar-28

GND disconnect with GND pull up

PROFET

V

IN

ST

OUT

GND

bb

V

bb

1

2

4

3

5

V

GND

V

IN

V

ST

load

PROFET

V

IN

ST

OUT

GND

bb

V

bb

1

2

4

3

5

high

Normal load current can be handled by the PROFET

itself.

inductive load

PROFET

V

IN

ST

OUT

GND

bb

1

2

4

3

5

V

bb

high

S

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

EAS

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

a single switch off

L [mH]

1

10

100

1000

10000

12

34

56

IL [A]