SAMHOP Microelectronics Corp.
8-BIT CONSTANT CURRENT LED DRIVER
TEST CIRCUIT
DC Characteristic
I
DD
V
DD
ENABLE
I
IL,
I
IH
CLOCK
LATCH
V
IL
,V
IH
SERIAL-IN
R-EXT
lrext
GND
OUT7
SERIAL-OUT
I
OL,
I
OH
OUT0
I
OUT
AC Characteristic
V
DD
ENABLE
V
IL,
V
IH
SW-
MATRIX
CLOCK
LATCH
SERIAL-IN
R-EXT GND
R
L
OUT0
C
L
OUT7
SERIAL-OUT
C
L
V
L
PRECAUTIONS FOR USING
Utmost care is necessary in the design of the output line, V
DD
and GND line, since IC may be destroyed due
to short-circuit between outputs, air contamination fault, or fault by improper grounding.
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