BTS 443P Infineon Technologies, BTS 443P Datasheet - Page 8

• Manufacturer Part Number: BTS 443P
• Manufacturer: Infineon Technologies

Specifications of BTS 443P

• Packages: PG-TO252-5
• Channels: 1.0
• Ron @ Tj = 25°c: 16.0 mOhm
• Recommended Operating Voltage Min.: 5.0 V
• Recommended Operating Voltage Max.: 36.0 V
• Il(sc): 35.0 A

Reversave
R
battery protection in applications with V
recommended value:
To minimise power dissipation at reverse battery
operation, the summarised current into the IN and IS
pin should be about 50mA. The current can be
provided by using a small signal diode D in parallel to
the input switch, by using a MOSFET input switch or by
proper adjusting the current through R
Since the current through R
heat in the device, this has to be taken into account in
the overall thermal considerations.
V
load
Provide a current path with load current capability by
using a diode, a Z-diode, or a varistor. (V
V
currents at IN and IS have to be limited to 250 mA.
Version a:
Data Sheet
Zb
V
bb
≥1kΩ, R
< 30 V if R
R
disconnect with energised inductive
IN
V
bb
Signal
IN
IS
= 1 kΩ nominal. Add R
IN
D
Logic
=0). For higher clamp voltages
(
Reverse battery protection)
R
IS
R
IN
1
IN
IS
+
R
PROFET
R
bb
V
1
V
IS
IS
generates additional
bb
+
R
1
R
V
IN
OUT
bb
=
Power
Transistor
IS
for reverse
bb
Power
V
|
ZL
and R
V
ZL
above 16V;
. 0
bb
R
< 73 V or
L
05
|
OUT
−
-
V.
Page 8 of 15
V bb
A
12
,
V
Version b:
Note that there is no reverse battery protection when
using a diode without additional Z-diode V
Version c:
Sometimes a necessary voltage clamp is given by non
inductive loads R
eliminates the need of clamping circuit:
V
V
bb
bb
V
Zb
IN
L
connected to the same switch and
IN
PROFET
PROFET ® BTS 443 P
V
IS
bb
PROFET
V
IS
bb
OUT
Rev. 1.0, 2007-02
OUT
ZL
R
, V
L
Zb
.