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 m F, T AMB = 25 ° C unless otherwise specified.)
30
100
25
20
15
10
5
25 mA
90
80
70
60
0
0
50
100
150
200
1 mA
250
300
50
5.5
5.0
4.5
4.0
3.5
3.0
2.5
2.0
LED PIN VOLTAGE (mV)
Figure 9. Dropout Characteristics
Figure 11. Power Up Waveform
Figure 13. Line Transient Waveform
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5
INPUT VOLTAGE (V)
Figure 10. Efficiency vs. Input Voltage
Figure 12. Power Down Waveform
Figure 14. Dimming Levels
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