參數資料
型號: Q67060-S7405
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: 智能功率高邊開關
文件頁數: 11/19頁
文件大小: 461K
代理商: Q67060-S7405
2004-01-27
Page 11
BTS 4141D
GND disconnect
Inductive Load switch-off energy
dissipation
PROFET
V
IN
OUT
GND
bb
Vbb
VIN
VGND
PROFET
V
IN
OUT
GND
bb
=
E
E
E
EAS
bb
L
R
ELoad
RL
L
{
L
Z
GND disconnect with GND pull up
PROFET
V
IN
OUT
GND
bb
Vbb
VGND
VIN
Energy stored in load inductance: E
L
= * L * I
L2
While demagnetizing load inductance,
the enérgy dissipated in PROFET is
E
AS
= E
bb
+ E
L
- E
R
=
V
ON(CL)
* i
L
(t) dt,
with an approximate solution for R
L
> 0
:
E
I
L
R
V
V
I
R
V
AS
L
L
bb
OUT CL
L
L
OUT CL
=
+
+
*
*
* (
|
)* ln(
*
|
|)
(
)|
(
)
2
1
Vbb disconnect with charged inductive
load
PROFET
V
IN
OUT
GND
bb
Vbb
high
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