CAT3603 Datasheet, PDF (5/11 Pages) Catalyst Semiconductor – 3-Channel LED Driver in 3x3mm Package

CAT3603
TYPICAL CHARACTERISTICS
(VIN = 3.6 V, I_OUT = 60 mA (3 LEDs at 20 mA), C₁ = C₂ = C_IN = C_OUT = 1 mF, T_AMB = 25°C unless otherwise specified.)
5.0
5.0
4.0
4.0
3.0
3.0
2.0
2.0
1.0
1x Mode
1.0
0
0
−1.0 1.5x Mode
−1.0
−2.0
−2.0
−3.0
−3.0
−4.0
−4.0
−5.0
−5.0
3.0 3.2
3.4
3.6
3.8
4.0
4.2
−40
0
VIN = 4 V
40
80
120
INPUT VOLTAGE (V)
TEMPERATURE (°C)
Figure 8. LED Current Change vs. Input
Voltage
Figure 9. LED Current Change vs.
Temperature
1.3
1.3
1.2
1.2
1.1
1.1
1.0
1.0
0.9
0.9
0.8
0.7
3.0 3.2
3.4
3.6
3.8
4.0
4.2
INPUT VOLTAGE (V)
Figure 10. Switching Frequency vs. Input
Voltage
4
0.8
0.7
−40
0
40
80
120
TEMPERATURE (°C)
Figure 11. Switching Frequency vs.
Temperature
10
3
8
2
6
1
0
3.0 3.2
3.4
3.6
3.8
4.0
4.2
INPUT VOLTAGE (V)
Figure 12. Output Resistance vs. Input Voltage
(1x Mode)
4
2
3.0 3.2
3.4
3.6
3.8
4.0 4.2
INPUT VOLTAGE (V)
Figure 13. Output Resistance vs. Input Voltage
(1.5x Mode)
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