bts50080a Infineon Technologies Corporation, bts50080a Datasheet - Page 20

• Manufacturer Part Number: bts50080a
• Description: Smart High-side Power Switch
• Manufacturer: Infineon Technologies Corporation

Infineon
6.5
The device can not block a current flow in reverse battery condition. In order to minimize power dissipation, the
device offers ReverSave
provided a sufficient gate to source voltage is generated V
Figure 17
Use the following formula for estimation of overall power dissipation
Note: No protection mechanism is active during reverse polarity. The control chip is not functional. Potentials of
Datasheet
over temp. /
short circuit
logic pins can become negative. Affected pins have to be protected by means of series resistors.
DEN

V
IN
OUT
I
INTELLIGENT LATCH - fault acknowledge and latch reset
bb
Reverse Polarity Protection - ReverSave
Reverse battery protection
latch
TM
functionality. Under reverse polarity condition, the output stage will be switched on,
reset
V
P
bb
diss(rev)
control chip
GND
≈
20
R
ON(rev)
GS
VBB
base chip
-I
≈
latch
V
L
GND_bb
TM
OUT
⋅
P
I
. Please refer to
2
L
diss(rev)
Smart High-Side Power Switch
V
ON(rev)
in reverse polarity mode.
-V
reset
bb
Figure 17
Protection Functions
BTS50080-1EGA
fault_acknowledge .emf
t
t
t
t
t
V1.0, 2009-04-06
for details.
Reverse.emf