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参数资料
| 型号： | PC33887VWR2 |
| 厂商： | Motorola, Inc. |
| 英文描述： | 5.0 A H-Bridge with Load Current Feedback |
| 中文描述： | 5.0的H -桥的负载电流反馈 |
| 文件页数： | 12/28页 |
| 文件大小： | 485K |
| 代理商： | PC33887VWR2 |
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33887
12
MOTOROLA ANALOG INTEGRATED CIRCUIT DEVICE DATA
Figure 6. Operating States
Figure 7. Example Short Circuit Detection Detail on Low-Side
MOSFET
Active
Current
Limiting
on Low-Side
MOSFET
>8A
6.5
Short Circuit Detection Threshold
Typical Current Limit Threshold
Hard Short Detect
ion
and Latch-OFF
0
IN1 or IN2
IN2 or IN1
IN1 or IN2
IN2 or IN1
IN1 IN2
[1]
[0]
[1]
[0]
[1]
[0]
[1]
[0]
Outputs
Tri-Stated
Outputs
Tri-Stated
Outputs Operation
(per Input Control Condition)
Time
S
D
D
I
n
,
I
L
,
High Current Load Being Regulated via Constant-OFF-Time PWM
Moderate Current Load
I
SCL
Short Circuit Detection Threshold
t
a
a
t
b
b
8.0
TIME
I
L
,
Limiting Waveform
Current Limiting
Waveform
Hard Output
Short Latch-OFF
t
a
t
b
t
b
= Current Limit Blank Time
I
Blanking Time
6.5
Hard short is detected during t
ion
b
t
a
= Tristate Output OFF Time
O
,
C
0.0
Hard short occurs.
t
on
F
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
n
.
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