CAT3626_08 Datasheet, PDF (4/15 Pages) Catalyst Semiconductor – 6-Channel LED Driver with I2C™ Interface

CAT3626
TYPICAL CHARACTERISTICS
V_IN = 3.6V, I_OUT = 90mA (6 LEDs at 15mA), EN = V_IN, C_IN = C₁ = C₂ = C_OUT = 1µF, T_AMB = 25ºC, unless otherwise specified.
Efficiency vs. Supply Voltage (6 LEDs)
100
1x Mode
90
15mA per LED
80
70
60
1.5x Mode
50 _{20mA per LED}
40
4.2 4.0 3.8 3.6 3.4 3.2 3.0
SUPPLY VOLTAGE [V]
Quiescent Current vs. Supply Voltage (1x Mode)
0.8
Efficiency vs. Total LED Current (6 LEDs)
100
90
VIN = 4V (1x mode)
80
70
60
50 VIN = 3.2V (1.5x mode)
40
0
50 100 150 200
TOTAL LED CURRENT [mA]
Quiescent Current vs. Temperature (1x Mode)
0.8
0.6
0.6
0.4
6 LEDs OFF
0.2
0
3.0 3.2 3.4 3.6 3.8 4.0 4.2
SUPPLY VOLTAGE [V]
Quiescent Current vs. Supply Voltage (1.5x Mode)
5
4
3
2
6 LEDs OFF
1
0
3.0 3.2 3.4 3.6 3.8 4.0 4.2
SUPPLY VOLTAGE [V]
0.4
0.2
6 LEDs OFF
0.0
-40
0
40
80 120
TEMPERATURE [°C]
Quiescent Current vs. Temperature (1.5x Mode)
5
4
3
2
1
6 LEDs OFF
0
-40
0
40
80 120
TEMPERATURE [°C]
Doc. No. MD-5014 Rev. D
4
© Catalyst Semiconductor, Inc.
Characteristics subject to change without notice