ELECTRICAL CHARACTERISTICS
ELECTRICAL PERFORMANCE CURVES
Table 6. 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
Fault
Input Conditions
Status
Flag
Output States
EN
D1
D2
IN1
IN2
FS
OUT1
OUT2
Forward
Reverse
Freewheeling Low
Freewheeling High
Disable 1 (D1)
Disable 2 ( D2 )
IN1 Disconnected
IN2 Disconnected
D1 Disconnected
D2 Disconnected
Undervoltage (34)
H
H
H
H
H
H
H
H
H
H
H
L
L
L
L
H
X
L
L
Z
X
X
H
H
H
H
X
L
H
H
X
Z
X
H
L
L
H
X
X
Z
X
X
X
X
L
H
L
H
X
X
X
Z
X
X
X
H
H
H
H
L
L
H
H
L
L
L
H
L
L
H
Z
Z
H
X
Z
Z
Z
L
H
L
H
Z
Z
X
H
Z
Z
Z
Overtemperature
Short Circuit (35)
Sleep Mode EN
EN Disconnected
H
H
L
Z
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
L
L
H
H
Z
Z
Z
Z
Z
Z
Z
Z
Notes
34 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.
35 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.
33887
Analog Integrated Circuit Device Data
20
Freescale Semiconductor
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