SP1820 Datasheet, PDF (3/7 Pages) SYNC POWER Crop. – Four Channels Constant Current LED Driver

SP1820
Four Channels Constant Current LED Driver
BLOCK DIAGRAM
ABSOULTE MAXIMUM RATINGS
(TA=25℃ Unless otherwise specified)
Parameter
Symbol
Value
Unit
DC Supply Voltage
VIN
5.5
V
Output LED Current
ILED
20
mA
Operating Temperature
TOPR
-40～85
℃
Maximum Junction Temperature
TJ(Max)
125
℃
Storage Temperature
TS
-65～150
℃
The IC has a protection circuit against static electricity. Do not apply high static electricity or high voltage that
exceeds the performance of the protection circuit to the IC.
ELECTRICAL CHARACTERISTICS
(TA=25℃, VIN=3.6V, RSET=7.5KOhm, VLED=0.5V, Unless otherwise specified)
Parameter
Operating Voltage
LED Current
Current Matching CH to CH
Quiescent Current
Line Regulation
Load Regulation
ISET Voltage
Enable Voltage High
Enable Voltage Low
Thermal Shutdown Threshold
Thermal Shutdown Hysteresis
Current Off Mode
Conditions
ILED = 0A, Rset = Open
ILED Change Per Volt Vcc Change
VLED<5V, ILED = 20mA
3.6V≤Vin≤4.2V
3.6V≤Vin≤4.2V
Min. Typ. Max. Unit
2.7
5.5
V
18.5 20 21.5
mA
+/-1.5 +/-3.5
%
250
μA
0.15 0.6
%/V
3
6
%/V
1.5
V
3.6
V
0.4
V
130
℃
20
℃
0.2
μA
2009/04/20 Ver.2
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