Four Channel Constant Current LED Driver
EC4101
ABSOLUTE MAXIMUM RATINGS
Vcc, VLED1, VLED2, VLED3, VLED4 Voltage to GND 0.3V to 18V
ISET and EN Voltage to GND..................................... 6V
Output Current per LED (IOUT) ............................. 125mA
Power Dissipation per Package
8-pin
SOP at TA = 85℃ ......................… 1.1W
Junction Temperature ..........................................+150ºC
Storage Temperature ........................... -55ºC to +150ºC
ESD Level. ....................................................... 1.5kV HBM
These are stress ratings only and functional operation
of the device at these ratings or any other above those
indicated in the operation sections of the specifications
below is not implied. Exposure to absolute maximum
rating conditions for extended periods of time may
affect reliability.
ELECTRICAL CHARACTERISTICS
4.5V < VCC <18V , VEN = 5V, VLED1 =VLED2 =VLED3 =VLED4 =1.0V, RSET =10k or ISET=125uA, -40 < TA < 85ºC, Unless
otherwise noted.
PARAMETER
MIN.
TYP.
MAX. UNITS CONDITIONS
Supply Voltage
4.5
5
18
V
Quiescent Supply Current
0.4
0.5
mA
ILED1=ILED2=ILED3=ILED4
Output/ISET Current Multiplication
Ratio
1000
1200
1400
VCH = 1V
LED Current (per diode )
125
mA
CH to CH Current Matching
-5%
+5%
%
LED Current Line Voltage Regulation
0.15
0.6
%/V
IOUT change per volt Vcc change
LED Current Load Voltage Regulation
9
%/V
1.0V < VLED <5V, ILED = 125mA
LED Current Thermal Regulation
0.1
%/℃
ILED =125mA
ISET Pin Voltage
1.4
1.5
1.6
V
Thermal Shutdown Threshold
130
℃
Thermal Shutdown Hysteresis
20
℃
Current OFF Mode
0.5
mA
VEN = 0V
Min. ENABLE “ ON Voltage “ (Note1)
1.6
V
Max. ENABLE “ OFF Voltage “ (Note2)
0.4
V
Note 1. ENABLE "ON" is VEN for which ILED > 80mA
Note 2. ENABLE "OFF" is VEN for which ILED < 1uA@ VLED1 > 1.0V
P 2 / 6
DR18EC070105-VER1.0
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