Datasheet

9
UC17131/2/3
UC27131/2/3
UC37131/2/3
OUTPUT
DRIVER
DISABLED ENABLED
V
CDEL
VCC
tINT
ENABLED
INDETERMINATE
STATE
t
D(ON)
t
t
t
V
CDEL_MAX
=5.8V
LED
V
FAULT_H
t
t
D(OFF)
V
FAULT_H
=4.9V
DISABLED
V
FAULT_L
=1.0V
t
D(ON)
Figure 3b. Power interrupt fault operation, high side configuration, V
IN
= 5VDC.
APPLICATION INFORMATION (cont.)
UDG-98030
OUTPUT
DRIVER
V
CDEL
I
LOAD
tSC
t
t
t
LED
t
tR(OFF)
4.9V
Figure 3c. Overcurrent fault operation.
UDG-98031
UNITRODE CORPORATION
7 CONTINENTAL BOULEVARD • MERRIMACK, NH 03054
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