CAT3637 datasheet(6/14 Pages) ONSEMI

Part #	CAT3637

Description	6-Channel Programmable High Efficiency Quad-Mode LED Driver

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Manufacturer	ONSEMI [ON Semiconductor]

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CAT3637

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TYPICAL PERFORMANCE CHARACTERISTICS

(VIN = 3.6 V, IOUT = 120 mA (6 LEDs at 20 mA), CIN = COUT = C1 = C2 = 1 mF, TAMB = 25°C unless otherwise specified.)

Figure 8. Switching Frequency vs.

Temperature

Figure 9. Output Resistance vs. Input Voltage

TEMPERATURE (°C)

INPUT VOLTAGE (V)

80

60

40

20

0

−20

−40

0.6

0.7

0.8

0.9

1.0

1.1

1.2

2.0

2.5

3.0

3.5

4.0

4.5

5.0

5.5

0

2

4

6

8

10

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

1.5x Mode

1.33x, 2x Mode

1x

1.33x

1.5x

2x

VF = 3.3 V

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