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參數資料
| 型號： | UPD168001 |
| 廠商： | NEC Corp. |
| 英文描述： | MONOLITHIC 4-CHANNEL H BRIDGE + LOW-SIDE SWITCH |
| 中文描述： | 整體式4通道H橋的低邊開關 |
| 文件頁數： | 6/20頁 |
| 文件大?。?/td> | 138K |
| 代理商： | UPD168001 |
Data Sheet S15728EJ1V0DS
6
μ
PD168001
(2) Switching of H bridges
When output A is switched in the figure shown on the right, a dead time (time
for which both Pch and Nch are OFF) elapses to prevent through current.
Consequently, the waveform of output A (rise time, fall time, and delay time)
changes depending on whether output B is fixed to the high or low level.
The figure below shows the voltage waveform of output B in response to an
input waveform when output B is fixed to the low level and the high level.
Rise delay time (t
TLH
)
Input A waveform
Output A when output B
is fixed to low level
Output A when output B
is fixed to low level
Fall delay time (t
THL
)
Rise time (t
TLH
)
Fall time (t
THL
)
Dead time
Dead time
When output B is fixed to low level
Output A goes into a high-impedance state and is undefined during the dead time period, but a low level is
output to output A because output B is pulled down by the load
When output B is fixed to high level
Output A goes into a high-impedance state and is undefined during the dead time period, but a high level is
output to output A because output B is pulled up by the load.
Nch
Pch
Nch
Pch
V
M
A
B
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