BTS716 Infineon Technologies AG, BTS716 Datasheet - Page 10

• Manufacturer Part Number: BTS716
• Description: Smart High-Side Power Switch Four Channels: 4 x 140m Status Feedback
• Manufacturer: Infineon Technologies AG

GND disconnect with GND pull up
Any kind of load. If V
Due to V
V
load
For inductive load currents up to the limits defined by Z
(max. ratings and diagram on page 10) each switch is
protected against loss of V bb .
Consider at your PCB layout that in the case of Vbb dis-
connection with energized inductive load all the load current
flows through the GND connection.
Infineon Technologies AG
bb
V
V
disconnect with energized inductive
bb
bb
GND
high
> 0, no V
V
IN
V
ST
GND
IN
ST
IN
ST
ST
> V
= low signal available.
PROFET
PROFET
GND
GND
IN
V
V
bb
bb
- V
V
GND
IN(T+)
OUT
OUT
device stays off
10 of 14
L
Inductive load switch-off energy
dissipation
Energy stored in load inductance:
While demagnetizing load inductance, the energy
dissipated in PROFET is
with an approximate solution for R L
Maximum allowable load inductance for
a single switch off
L = f (I L ); T j,start = 150°C, V bb = 12 V, R L = 0
Z L [mH]
=
1000
100
E
10
AS
1
E
1
=
E
bb
2
AS
I
L
·
R
·
= E
L
L
(
V
bb
2
bb
IN
ST
+ E
+ |V
E
L
L
PROFET
- E
OUT(CL)
=
(one channel)
GND
1 /
3
V
R
bb
2
= V
·
L
|)
·
ON(CL)
I
2
L
ln
OUT
4
(1+
E AS
0 :
4)
·
Z
2003-Oct-01
BTS 716G
|V
i
L
L
(t) dt,
{
OUT(CL)
I
R
L
5
L
·
L
R
L
I L [A]
|
E
E
E Load
)
R
L
6