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參數(shù)資料
| 型號： | Q67060-S7411-A803 |
| 廠商： | INFINEON TECHNOLOGIES AG |
| 元件分類： | 通用總線功能 |
| 英文描述： | High Speed CMOS Logic Decade Counter/Divider with 10 Decoded Outputs 16-TSSOP -55 to 125 |
| 中文描述： | 智能阻抗高側(cè)電源開關(guān) |
| 文件頁數(shù)： | 10/16頁 |
| 文件大小： | 262K |
| 代理商： | Q67060-S7411-A803 |
Data sheet BTS 6143 D
Infineon Technologies AG
10 of 16
2003-Oct-01
Reversave
(
Reverse battery protection)
Logic
IN
IS
R
OUT
L
R
Power GND
Signal GND
Vbb
-
Power
Transistor
IN
R
bb
R
D
R
IS
typ. 1
k
. Add
R
IN
for reverse battery protection in
applications with
V
bb
above 16V;
1
recommended value:
=
+
IS
IN
R
R
1
V
V
A
12
bb
|
|
08
.
To minimise power dissipation at reverse battery
operation, the overall current into the IN and IS pin
should be about 80mA. 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
IS.
Since the current via
R
bb
generates additional heat in
the device, this has to be taken into account in the
overall thermal consideration.
Inverse load current operation
PROFET
V
IN
OUT
IS
bb
V
bb
V
OUT
- I
L
R
IS
V
IS
V
IN
+
-
+
-
I
IS
The device can be operated in inverse load current
mode (
V
OUT
>
V
bb
> 0V). The current sense feature is
not available during this kind of operation (
I
IS
= 0). In
case of inverse operation the intrinsic drain source
diode is eventually conducting resulting in considerably
increased power dissipation.
The transition from inverse to forward mode can result
in a delayed switch on.
Note:
Temperature protection during inverse load
current operation is not possible!
V
bb
disconnect with energised inductive
load
Provide a current path with load current capability by
using a diode, a Z-diode, or a varistor. (
V
ZL
+
V
D
<39 V if
R
IN
=
0). For higher clamp voltages currents at IN and
IS have to be limited to
120 mA.
Version a:
PROFET
V
IN
OUT
IS
bb
Vbb
V
ZL
V
D
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