參數(shù)資料
型號(hào)： MIG20J501L
廠商： Toshiba Corporation
英文描述： MIG20J501L
中文描述： MIG20J501L
文件頁(yè)數(shù)： 10/20頁(yè)
文件大小： 200K
代理商： MIG20J501L
MIG20J501L
2001-05-07
10
Timing Chart for Over Current Protection Sequence (OC)
···
Only low side
(1)
Upon occasion of over current condition, at first step, V
GE
is step-down to one-half of nominal value in
order to reduce IGBT saturation current and finally. V
GE
is completely interrupted after some certain time,
t
off
(OC).
An error signal output (V
FO
) goes into ‘L’ level when the lower arm IGBT is subjected to over current
condition. The timing of V
FO
output (‘L’ level) is provided at complete interruption of V
GE
and the ‘L’ level
is maintained during some certain time duration (t
FO
).
The reset operation is provided on condition that error signal output return to ‘H’ level after certain time
duration and over current condition is removed and input signal turns from operation “H” to “L”.
(2)
(3)
Timing Chart
(Only low side)
V
IN
V
GE
I
C
V
FO
t
off (OC)
t
FO
t
FO
t
off (OC)
t
off (OC)
H
L
0
0
0
OC
Noise immunizing
time 10 s
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