CAT4004_08 Datasheet, PDF (5/11 Pages) Catalyst Semiconductor – 4-Channel Constant Current LED Driver with EZDim™

CAT4004
TYPICAL PERFORMANCE CHARACTERISTICS
V_IN = 4V, V_F = 3.3V, I_OUT = 80mA (4 LEDs at 20mA), C_IN = 1μF, T_AMB = 25°C unless otherwise specified.
RSET Pin Voltage vs. Input Voltage
0.7
RSET Pin Voltage vs. Temperature
0.7
0.6
0.6
0.5
0.5
0.4
0.4
0.3
0.3
0.2
2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5
INPUT VOLTAGE [V]
LED Current vs. LED Pin Voltage
40
0.2
-40
0
40
80 120
TEMPERATURE [°C]
Dropout Characteristics
40
30
30
20
20
10
0
0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5
LED PIN VOLTAGE [V]
Efficiency vs. Input Voltage
100
90
80
70
60
50
5.0 4.5 4.0 3.5 3.0 2.5 2.0
INPUT VOLTAGE [V]
10
0
0 50 100 150 200 250 300
LED PIN VOLTAGE [mV]
© Catalyst Semiconductor, Inc.
5
Characteristics subject to change without notice
Doc. No. MD-5024 Rev. B