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AP3029 pdf datasheet(WLED驱动升压转

消耗积分:5 | 格式:rar | 大小:666 | 2008-07-21

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AP3029 pdf datasheet(WLED驱动升压转换器)

The AP3029 is an inductor-based DC/DC converter
designed to drive up to six white LEDs in series or 2
rows of LEDs with 5 for each in parallel for backlight.
Only one feedback resistor  is needed to control the
LED current and obtain satisfied brightness.
A constant frequency 1.2MHz PWM control scheme is
employed in this IC, which means the tiny external
components can be used. In fact, 1mm tall inductor and
0.22μF output capacitor for the typical application is
very appropriate. Additionally, the schottky diode in
boost circuit is integrated in this chip. AP3029 also
provides a disable port to ease its use for different sys-
tems.
The over output voltage protection is equipped in
AP3029.  When any LED is broken or in other abnor-
mal conditions, the output voltage will be clamped to
27V.
The AP3029 is available in standard SOT-23-6 and
TSOT-23-6 packages.

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