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【ADI】ADD5203：提供SMBUS和PWM输入的8串白光LED驱动器
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2014-07-28
孔令双
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The ADD5203 is a white LED driver for backlight applications based on high efficiency， current-mode, step-up converter technology。It is designed with a 0.15 Ω, 2.9 A internal switch and a pin-adjustable operating frequency between 350 kHz and 1 MHz. The ADD5203 contains eight regulated current sources for uniform brightness intensity。 Each current source can be driven up to 30 mA, and the LED driving current is pin adjustable by an external resistor。 The ADD5203 drives up to eight parallel strings of multiple series connected LEDs with a ±1.5% current matching between strings。
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