參數(shù)資料
型號(hào)： MC33887PNBR2
廠(chǎng)商： MOTOROLA INC
元件分類(lèi)： 運(yùn)動(dòng)控制電子
英文描述： 5.0 A H-Bridge with Load Current Feedback
中文描述： STEPPER MOTOR CONTROLLER, PQCC36
封裝： PLASTIC, QFN-36
文件頁(yè)數(shù)： 17/28頁(yè)
文件大?。?/td> 485K
代理商： MC33887PNBR2
MOTOROLA ANALOG INTEGRATED CIRCUIT DEVICE DATA
33887
17
Table 1. Truth Table
The tri-state conditions and the fault status are reset using D1 or
D2
. The truth table uses the following notations: L = LOW, H = HIGH,
X = HIGH or LOW, and Z = High impedance (all output power transistors are switched off).
Device State
Input Conditions
Fault
Status Flag
Output States
EN
D1
D2
IN1
IN2
FS
OUT1
OUT2
Forward
H
L
H
H
L
H
H
L
Reverse
H
L
H
L
H
H
L
H
Freewheeling Low
H
L
H
L
L
H
L
L
Freewheeling High
H
L
H
H
H
H
H
H
Disable 1 (D1)
H
H
X
X
X
L
Z
Z
Disable 2 (
D2
)
H
X
L
X
X
L
Z
Z
IN1 Disconnected
H
L
H
Z
X
H
H
X
IN2 Disconnected
H
L
H
X
Z
H
X
H
D1 Disconnected
H
Z
X
X
X
L
Z
Z
D2
Disconnected
H
X
Z
X
X
L
Z
Z
Undervoltage
(Note 33)
H
X
X
X
X
L
Z
Z
Overtemperature
(Note 34)
H
X
X
X
X
L
Z
Z
Short Circuit
(Note 34)
H
X
X
X
X
L
Z
Z
Sleep Mode EN
L
X
X
X
X
H
Z
Z
EN Disconnected
Z
X
X
X
X
H
Z
Z
Notes
33.
In the case of an undervoltage condition, the outputs tri-state and the fault status is SET logic LOW. Upon undervoltage recovery, fault status
is reset automatically or automatically cleared and the outputs are restored to their original operating condition.
When a short circuit or overtemperature condition is detected, the power outputs are tri-state latched-OFF independent of the input signals
and the fault status flag is SET logic LOW.
34.
F
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
n
.
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