MC33887PEK Freescale Semiconductor, MC33887PEK Datasheet - Page 20

• Manufacturer Part Number: MC33887PEK
• Description: H-BRIDGE W/LD CUR FDBK
• Manufacturer: Freescale Semiconductor

Table 6. Truth Table
The tri-state conditions and the fault status are reset using D1 or
H = HIGH, X = HIGH or LOW, and Z = High impedance (all output power transistors are switched off).
20
33887
ELECTRICAL CHARACTERISTICS
ELECTRICAL PERFORMANCE CURVES
Notes
Device State
Forward
Reverse
Freewheeling Low
Freewheeling High
IN1 Disconnected
IN2 Disconnected
D1 Disconnected
D2
Undervoltage
Overtemperature
Short Circuit
Sleep Mode EN
EN Disconnected
Disable 1 (D1)
Disable 2 (
34
35
Disconnected
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.
D2
(35)
)
(34)
(35)
EN
H
H
H
H
H
H
H
H
H
H
H
H
H
Z
L
D1
H
X
X
X
X
X
X
X
L
L
L
L
L
L
Z
Input Conditions
D2
H
H
H
H
X
H
H
X
Z
X
X
X
X
X
L
D2
. The truth table uses the following notations: L = LOW,
IN1
H
H
X
X
X
X
X
X
X
X
X
X
L
L
Z
IN2
H
H
X
X
X
Z
X
X
X
X
X
X
X
L
L
Analog Integrated Circuit Device Data
Status
Fault
Flag
FS
H
H
H
H
H
H
H
H
L
L
L
L
L
L
L
Freescale Semiconductor
OUT1
Output States
H
H
Z
Z
H
X
Z
Z
Z
Z
Z
Z
Z
L
L
OUT2
H
H
X
H
L
L
Z
Z
Z
Z
Z
Z
Z
Z
Z