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AS3490 Folha de dados(PDF) 7 Page - ams AG

Nome de Peças AS3490
Descrição Electrónicos  Highly Efficient 2-6 LEDs Backlight Driver with PWM Input
PDF  19 Pages
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Fabricante Electrônico  AMSCO [ams AG]
Página de início  http://www.ams.com
Logo AMSCO - ams AG

AS3490 Folha de dados(HTML) 7 Page - ams AG

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Datasheet - E l e c t r i c a l C h a r a c t e r i s t i c s
2. Note: It is not recommended to operate the current sources at minimum duty cycle with low LED currents.
3. The dcdc output voltage VOUT is regulated to 150mV above the maximum LED voltage (LED1...LED3) to guar-
antee proper operation of the current with output voltage ripple and undershoots (e.g. due to PWM or supply
voltage changes)
4. The short LED detection debounce time is longer than the open LED detection debounce time to allow the par-
asitic capacitance of the LED to charge above VLED_SHORT within this time and avoid wrong triggering of short
LED detection.



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