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參數(shù)資料
| 型號： | BTS555PE3146 |
| 元件分類： | TVS-瞬態(tài)抑制二極管 |
| 英文描述： | Transient Voltage Suppressor Diodes |
| 中文描述： | 單外設(shè)驅(qū)動 |
| 文件頁數(shù)： | 9/15頁 |
| 文件大?。?/td> | 200K |
| 代理商： | BTS555PE3146 |
Data Sheet BTS550P
Infineon Technologies AG
Page 9
2000-Mar-24
V
OUT(CL)
= -19
V typ. via V
ZG
. With D
S
, V
OUT
is
clamped to V
bb
- V
ON(CL)
via V
Z1
. Using D
S
gives
faster deenergizing of the inductive load, but higher
peak power dissipation in the PROFET. In case of a
floating ground with a potential higher than 19V
referring to the OUT
–
potential the device will
switch on, if diode DS is not used.
Overvoltage protection of logic part
+ V
bb
V
OUT
IN
bb
R
Signal GND
Logic
PROFET
V
Z,IS
R
IS
IN
R
IS
V
Z,IN
R
V
V
Z,VIS
R
bb
=
120
typ
.
,
V
Z,IN
=
V
Z,IS
=
64
V
typ.,
R
IS
=
1
k
nominal. Note that when overvoltage exceeds 69
V
typ. a voltage above 5V can occur between IS and
GND, if R
V
, V
Z,VIS
are not used.
Reverse battery protection
Logic
IS
IN
IS
R
V
R
OUT
L
R
Power GND
Signal GND
Vbb
-
Power
Transistor
IN
R
bb
R
D
S
D
R
V
≥
1
k
,
R
IS
=
1
k
nominal. Add
R
IN
for reverse
battery protection in applications with
V
bb
above
16
V
17)
; recommended value: R
IN
+ R
IS
+R
V
=
0.1A
|
V
bb
| - 12V if
0.1A
|
V
bb
| - 12V if D
S
is not used (orR
D
S
is used).
To minimize power dissipation at reverse battery
operation, the summarized current into the IN and
IS pin should be about 120mA. 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
and
R
V
.
IN
=
V
bb
disconnect with energized
inductive load
Provide a current path with load current capability
by using a diode, a Z-diode, or a varistor. (
V
ZL
<
72
V or
V
Zb
<
30 V if R
IN
=0). For higher clamp voltages
currents at IN and IS have to be limited to
250 mA.
Version a:
PROFET
V
IN
OUT
IS
bb
Vbb
V
ZL
Version b:
PROFET
V
IN
OUT
IS
bb
Vbb
V
Zb
Note that there is no reverse battery protection
when using a diode without additional Z-diode V
ZL
,
V
Zb
.
Version c: Sometimes a neccessary voltage clamp
is given by non inductive loads R
L
connected to the
same switch and eliminates the need of clamping
circuit:
PROFET
V
IN
OUT
IS
bb
Vbb
R
L
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