SAMHOP Microelectronics Corp.
8-BIT CONSTANT CURRENT LED DRIVER
MAXIMUM RATINGS (Ta = 25
o
C)
Characteristic
Supply Voltage
Input Voltage
Output Current
Output Voltage
Clock Frequency
GND Terminal Current
Power Dissipation
Thermal Resistance
Operating Termerature
Storage Temperature
(Note)
Symbol
V
DD
V
IN
I
OUT
V
OUT
f
CLK
I
GND
P
D
Rth (j-a)
Topr
Tstg
Rating
0 ~ 7.0
- 0.4 ~ VDD +0.4
90
- 0.5 ~ 20.0
25
720
1.47 (DIP : FREE AIR, Ta = 25
o
C)
0.78 (SOP/ SSOP : ON PCB, Ta = 25
o
C)
85 (DIP : FREE AIR, Ta = 25
o
C)
160 (SOP/ SSOP : ON PCB, Ta = 25
o
C)
-40 ~ 85
-55 ~ 150
Unit
V
V
mA
V
MHz
mA
W
o
C
o
/W
C
o
C
DIP : Ambient temperature derated above 25
o
C in the proportion of 11.8mW /
o
C
SOP/ SSOP: Ambient temperature delated above 25
o
C in the proportion of 6.3mW /
o
C
RECOMMENDED OPERATING CONDITION (Ta = -40 ~ 85
o
C unless otherwise noted)
Characteristic
Supply Voltage
Output Voltage
Output Current
Symbol
V
DD
V
OUT
I
OUT
I
OH
I
OL
V
IH
Input Voltage
V
IL
LATCH Pulse Width
CLOCK Pulse Width
ENABLE Pulse Width
Set-up Time for DATA
Hold Time for DATA
Set-up Time for LATCH
Clock Frequency
Power Dissipation
tw LAT
tw CLK
tw EN
t
setup
(D)
t
hold
(D)
t
setup
(L)
f
CLK
P
D
-
Condition
-
-
OUTn,DC test circuit
SERIAL-OUT
SERIAL-OUT
-
Min.
3.3
-
5
-
-
0.7
V
DD
-0.3
20
20
500
20
20
20
-
-
-
Typ.
5.0
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Max.
5.5
15.0
88
1.0
-1.0
V
DD
+0.3
0.3
V
DD
-
-
-
-
-
-
25
0.82
0.40
Unit
V
V
mA
V
ns
ns
ns
ns
ns
ns
MHz
W
V
DD
= 4.5 ~ 5.5V
Cascade operation
Ta = 85
o
C(DIP FREE AIR)
Ta = 85
o
C
(SOP/ SSOP ON PCB)
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V.2.10