sp000219527 Infineon Technologies Corporation, sp000219527 Datasheet - Page 11

• Manufacturer Part Number: sp000219527
• Description: Smart Power High-side-switch Or Industrial Applications
• Manufacturer: Infineon Technologies Corporation

V
V
GND disconnect
GND disconnect with GND pull up
V bb disconnect with charged inductive
load
bb
bb
V
bb
high
V
IN
IN1...8
V
IN1...8
IN
IN1...8
LS
LS
LS
V
ST
PROFET
PROFET
GND
GND
PROFET
V
V
bb
bb
GND
V
bb
V
V
GND
GND
DIAG
DIAG
OUT1...8
DIAG
OUT1...8
OUT1...8
Page 11
E
Inductive Load switch-off energy
dissipation, each channel
Energy stored in load inductance: E
While demagnetizing load inductance,
E
with an approximate solution for R
the enérgy dissipated in PROFET is
=
A S
AS
= E
E
2
I
bb
L
bb
*
*
R
+ E
L
L
* (
L
IN
- E
V
b b
R
= V
PROFET
|
V
V
GND
bb
O U T C L
ON(CL)
(
OUT
)|
) * ln (
* i
L
E AS
L
L
> 0 :
(t) dt,
Z
= ½ * L * I
L
{
2006-03-09
1
R L
L
ITS 4880 R
|
V
I
L
O U T C L
E
L
E
E Load
*
2
R
L
R
(
L
)
|
)