CAT3637 Datasheet, PDF (6/14 Pages) Catalyst Semiconductor – 6-Channel Programmable High Efficiency Quad-Mode™ LED Driver

CAT3637
TYPICAL PERFORMANCE CHARACTERISTICS
(V_IN = 3.6 V, I_OUT = 120 mA (6 LEDs at 20 mA), C_IN = C_OUT = C₁ = C₂ = 1 mF, T_AMB = 25°C unless otherwise specified.)
1.2
1.1
1.0
1.5x Mode
0.9
0.8
1.33x, 2x Mode
10
V_F = 3.3 V
8
6
4
2x
1.33x
1.5x
0.7
2
1x
0.6
−40 −20
0
20
40
60
80
TEMPERATURE (°C)
Figure 8. Switching Frequency vs.
Temperature
0
5.5 5.0 4.5 4.0 3.5 3.0 2.5 2.0
INPUT VOLTAGE (V)
Figure 9. Output Resistance vs. Input Voltage
Figure 10. Power Up in 1x Mode
Figure 11. Power Up in 1.33x Mode
Figure 12. Power Up in 1.5x Mode
Figure 13. Power Up in 2x Mode
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