sp000203741 Infineon Technologies Corporation, sp000203741 Datasheet - Page 16

• Manufacturer Part Number: sp000203741
• Description: Smart High-side Power Switch Profet Two Channels, 140 M ?
• Manufacturer: Infineon Technologies Corporation

4.2.2
In case of reverse polarity, the intrinsic body diode causes power dissipation. Additional
power is dissipated by the integrated ground resistor. Use following formula for
estimation of total power dissipation
The reverse current through the intrinsic body diode has to be limited by the connected
load. The current trough sense pins IS1 and IS2 has to be limited (please refer to
maximum ratings on
reverse polarity.
4.2.3
In addition to the output clamp for inductive loads as described in
a clamp mechanism for over voltage protection. Because of the integrated ground
resistor, over voltage protection does not require external components.
As shown in
transistor opens and the voltage across logic part is clamped. As a result, the internal
ground potential rises to
IN1, IN2 and SEN rises almost to that potential, depending on the impedance of the
connected circuitry.
Figure 12
4.2.4
In case of complete loss of the device ground connections, but connected load ground,
the BTS 5231GS securely changes to or keeps in off state.
Data Sheet
P
diss(rev)
=
Reverse Polarity Protection
Over Voltage Protection
Loss of Ground Protection
¦
Figure
Over Voltage Protection
(
V
DS(rev)
IN
IS
SEN R
12, in case of supply voltages greater than
Page
ZD
V
R
⋅
I
SEN
IN
ESD
L
bb
)
8). The over-temperature protection is not active during
-
+
V
------------- -
R
V
bb(AZ)
GND
bb
2
P
. Due to the ESD zener diodes, the potential at pin
diss(rev)
logic
16
in reverse polarity mode.
ZD
R
GND
Smart High-Side Power Switch
AZ
GND
VBB
OUT
Protection Functions
Section
V
V
bb(AZ)
OUT
V1.0, 2005-12-19
BTS 5231GS
4.1.3, there is
, the power
OverVoltage .emf
(3)