SP1821
Four Channels Constant Current LED Driver
ELECTRICAL CHARACTERISTICS
(T
A
=25
℃
, V
IN
=12V, R
SET
=31.6KOhm, V
LED
=12V, Unless otherwise specified)
Parameter
Operating Voltage
LED Current
Current Matching CH to CH
Quiescent Current
Line Regulation
I
SET
Voltage
Enable Voltage High
Enable Voltage Low
Thermal Shutdown Threshold
Thermal Shutdown Hysteresis
Current Off Mode
600
Conditions
Min.
10.5
22.5
700
4.5
Typ.
25
+/-1.5
800
5
1.5
5
130
20
700
800
Max.
12
27.5
+/-3.5
900
6
5.5
0.4
Unit
V
mA
%
μA
%/V
V
V
V
℃
℃
uA
ILED = 0A, Rset = Open
ILED change per volt Vcc change
10.5V≤Vin≤12V
10.5V≤Vin≤12V
2010/04/10
Ver.2
Page 4