SP1821 Datasheet, PDF (4/7 Pages) SYNC POWER Crop. – Four Channels Constant Current LED Driver

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