SAMHOP Microelectronics Corp.
8-BIT CONSTANT CURRENT LED DRIVER
ELECTRICAL CHARACTERISTICS (V
DD
= 5.0V, Ta = 25
o
C unless otherwise noted)
Characteristic
Symbol
Condition
Min.
0.7
V
DD
GND
Typ.
Max.
Unit
Input
Voltage
"H" Level
"L" Level
V
IH
V
IL
－
－
－
－
V
DD
0.3
V
DD
10
V
Output Leakage Current
I
OUT
V
OH
= 15.0V
－
－
µA
Output
Voltage
V
OL
SERIAL-OUT
V
OH
I
OUT1
I
OL
= 1.0mA
I
OH
= -1.0mA
V
CE
= 0.7V
V
CE
= 0.4V
I
OUT
= 40mA
V
CE
= 0.4V
REXT = 470Ω
(Include skew)
REXT = 470Ω
－
4.6
34.1
33.7
－
－
－
40.0
39.5
±1.5
0.4
V
－
45.9
45.3
±4.0
Output Current 1
I
OUT2
△
I
OUT1
mA
Current Skew
%
Output Current 2
I
OUT3
V
CE
= 0.7V
I
OUT
= 75mA
V
CE
= 0.7V
REXT = 240Ω
66.3
78.0
89.7
mA
Current Skew
△
Io
UT3
REXT = 240Ω
－
±1.5
±4.0
%
Supply Voltage Regulation
% / V
DD
REXT = 470Ω, Ta = -40 ~ 85
o
C
－
2.5
5.0
%/V
Pull-Up Resistor
Pull-Down Resistor
R
IN
(up)
R
IN
(down)
I
DD
(off) 1
"OFF"
I
DD
(off) 2
I
DD
(off) 3
I
DD
(on) 1
"ON"
I
DD
(on) 2
－
－
R
EXT
=OPEN, OUT0 ~ 7 = off
R
EXT
=470Ω, OUT0 ~ 7 = off
R
EXT
=240Ω, OUT0 ~ 7 = off
R
EXT
=470Ω, OUT0 ~ 7 = on
R
EXT
=240Ω, OUT0 ~ 7 = on
150
100
－
3.5
6.5
6.0
10.0
300
200
1.0
5.0
8.0
7.0
13.0
600
400
1.5
8.0
15.0
18.0
28.0
KΩ
KΩ
Supply
Current
mA
Page 7
V.2.10
SAMHOP [ SAMHOP MICROELECTRONICS CORP. ]
