CAT3626 Datasheet, PDF (6/16 Pages) Catalyst Semiconductor – 6-Channel LED Driver with I2C Interface

CAT3626
TYPICAL CHARACTERISTICS
(V_IN = 3.6 V, I_OUT = 90 mA (6 LEDs at 15 mA), EN = V_IN, C_IN = C₁ = C₂ = C_OUT = 1 mF, T_AMB = 25°C, unless otherwise specified.)
5.0
4.0
3.0
2.0
1x Mode
1.0
0
−1.0
−2.0
1.5x Mode
−3.0
−4.0
−5.0
3.0
3.2
3.4
3.6
3.8
4.0
4.2
SUPPLY VOLTAGE (V)
Figure 9. LED Current Change vs. Supply
Voltage
1.3
1.2
1.1
1.0
0.9
0.8
0.7
3.0
3.2
3.4
3.6
3.8
4.0
SUPPLY VOLTAGE (V)
Figure 11. Switching Frequency vs. Supply
Voltage
1.0
0.8
0.6
0.4
0.2
0
3.0
3.2
3.4
3.6
3.8
4.0
4.2
SUPPLY VOLTAGE (V)
Figure 13. Output Resistance vs. Supply
Voltage (1x Mode)
5.0
4.0
3.0
2.0
1.0
0
−1.0
−2.0
−3.0
−4.0
−5.0
−40 −20
0
20
40
TEMPERATURE (°C)
60
80
Figure 10. LED Current Change vs.
Temperature
1.3
1.2
1.1
1.0
0.9
0.8
0.7
−40
0
40
80
120
TEMPERATURE (°C)
Figure 12. Switching Frequency vs.
Temperature
4.0
3.5
3.0
2.5
2.0
1.5
1.0
3.0
3.2
3.4
3.6
3.8
SUPPLY VOLTAGE (V)
4.0 4.2
Figure 14. Output Resistance vs. Supply
Voltage (1.5x Mode)
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