CAT4004A_11 Datasheet, PDF (5/11 Pages) ON Semiconductor – Constant Current LED Driver

CAT4002A, CAT4004A
TYPICAL PERFORMANCE CHARACTERISTICS
(CAT4002A, V_IN = 4 V, V_F = 3.3 V, I_OUT = 50 mA (2 LEDs at 25 mA), C_IN = 1 mF, T_AMB = 25°C unless otherwise specified.)
30
100
25 mA
25
90
20
80
15
70
10
5
60
1 mA
0
50
0
50
100
150
200
250
300
5.5 5.0 4.5 4.0 3.5 3.0 2.5 2.0
LED PIN VOLTAGE (mV)
INPUT VOLTAGE (V)
Figure 9. Dropout Characteristics
Figure 10. Efficiency vs. Input Voltage
Figure 11. Power Up Waveform
Figure 12. Power Down Waveform
Figure 13. Line Transient Waveform
Figure 14. Dimming Levels
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