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LD1016
16 CHANNEL CONSTANT CURRENT LED DRIVERS
FUNCTIONAL BLOCK DIAGRAM
I
OUT
0
I
OUT
1
I
OUT
14
I
OUT
15
R
EXT
V
DD
OE
I-REF
16-bit Output Driver
16
STROBE
GND
D
IN
CLK
16-bit Output Latch
16
16-bit Shift Register
D
OUT
TERMINAL DESCRIPTION
PIN NO
1
2
3
4
5-20
Pin Name
GND
D
IN
CLK
STROBE
I
OUT
[0:15]
Description
GND terminal for control logic and current sink
Serial data input terminal for shift register
Clock input terminal for data shift to up-edge
Serial data is transferred to the output latch when STOBE is high. The
data is latched when STROBE goes low
Constant current output terminals
Output enable terminal
When OE is low, the output drivers are enabled; when OE is high, all
output drivers are turned off
Serial data output to the following D
IN
of next driver IC
Input terminal used to connect an external resistor for setting up
output current for all output channels
Supply voltage terminal
21
OEB
22
23
D
OUT
R
EXT
24
V
DD
4
Ver1.0
LDT [ LDT Co., Ltd ]
