CAT3614 datasheet(5/12 Pages) ONSEMI

Part #	CAT3614

Description	4-Channel 1-Wire LED Driver in 3 x 3 mm Package

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CAT3614

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TYPICAL CHARACTERISTICS

(VIN = 3.6 V, IOUT = 80 mA (4 LEDs at 20 mA), C1 = C2 = CIN = COUT = 1 mF, TAMB = 25°C unless otherwise specified.)

Figure 9. LED Current Change vs. Input

Voltage

Figure 10. LED Current Change vs.

Temperature

INPUT VOLTAGE (V)

TEMPERATURE (°C)

4.2

4.0

3.8

3.6

3.4

3.2

3.0

−5

−1

0

1

2

3

4

5

80

60

40

20

0

−20

−40

−5

−3

0

1

2

3

4

5

Figure 11. Oscillator Frequency vs. Input

Voltage

Figure 12. Oscillator Frequency vs.

Temperature

INPUT VOLTAGE (V)

TEMPERATURE (°C)

4.0

3.8

3.6

3.4

3.2

3.0

0.7

0.8

0.9

1.0

1.1

1.2

1.3

120

80

40

0

−40

0.7

0.8

0.9

1.0

1.1

1.2

1.3

Figure 13. Output Resistance vs. Input Voltage

(1x Mode)

Figure 14. Output Resistance vs. Input Voltage

(1.5x Mode)

INPUT VOLTAGE (V)

4.2

4.0

3.8

3.6

3.4

3.2

3.0

0

0.2

0.4

0.6

0.8

1.0

4.2

4.0

3.8

3.6

3.4

3.2

3.0

1.0

1.5

2.0

2.5

3.0

3.5

4.0

1x Mode

1.5x Mode

−2

−3

−4

−1

−2

−4

4 LEDs at 20 mA

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