AS3661 datasheet(14/87 Pages) AMSCO

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AS3661

Datasheet - Ty p i c a l O p e r a t i n g C h a r a c t e r i s t i c s

Figure 10. Power Save Mode Supply Current vs.

VBAT, Charge Pump in 1x mode

Figure 11. Serial Bus Write and Charge Pump Start-

up, ILOAD = 60mA

100

150

200

2,7

3,1

3,5

3,9

4,3

4,7

5,1

5,5

VBAT [V]

int ernal CLK

ext ernal CLK

25µs/Div

Figure 12. Line Trans. and Charge Pump autom. Gain

Change 1.5 to 1, 6LEDs@1mA 100% PWM

Figure 13. Line Trans. and Charge Pump autom. Gain

Change 1 to 1.5, 6LEDs@1mA 100% PWM

2.5ms/Div

2.8V

4.2V

3.6V

4.65V

3.8V

2.5ms/Div

3.6V

2.8V

Figure 14. 100% PWM RGB LED Efficiency vs. VBAT

Figure 15. 100% PWM WLED Efficiency vs. VBAT

2,7

3,3

3,9

4,5

5,1

VBAT [V]

9x10mA

9x6.7mA

3 x LED Osram LRTB Y3SG

2,7

3,2

3,7

4,2

4,7

VBAT [V]

6x15mA

6x10mA

6 x LED Multicomp OVS-0601

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