Diodes AP3036/A Manuel d'utilisateur télécharger pdf (Page 10)

Preliminary Datasheet

WHITE LED STEP-UP CONVERTER AP3036/A

Jul. 2012 Rev. 1.3. BCD Semiconductor Manufacturing Limited

Typical Performance Characteristics (Continued)

The WLED forward voltage (V

) is 3.45V at I

=20mA, unless otherwise noted.

Time 1µs/div Time 10µs/div

Figure 20. Output Voltage Ripple Figure 21. PWM Dimming

CTRL

=3.6V, I

LED

=20mA, 5 LEDs) (V

=3.6V, V

PWM

=2.5V, f

PWM

=100kHz, Duty=50%, 5 LEDs)

2V/div

10V/div

OUT1

(AC)

100mV/div

100mA/div

2V/div

10V/div

OUT

V/div

LED

10mA/div

1 2 ... 5 6 7 8 9 10 11 12 13 14

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Diodes AP3036/A Manuel d'utilisateur Page 10