Datasheet Texas Instruments LM36923HYFFR — 数据表

制造商	Texas Instruments
系列	LM36923H
零件号	LM36923HYFFR

数据表

应用须知

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  Auto-Frequency Mode Setting for Improved Boost Efficiency in White LED Backlight
  PDF, 252 Kb, 档案已发布: Oct 14, 2016
  As the load current of a boost converter is reduced, the ratio of conduction losses to switching lossesbegins to lower. Conduction losses are losses that are a function of current. Switching losses are lossesthat are a function of switching frequency. As this ratio is reduced the boost switching losses begin todominate the total circuit losses. When this happens, the benefit of lowering the
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  Analog PWM Dimming in White-LED Drivers
  PDF, 539 Kb, 档案已发布: Dec 21, 2016
  Pulse-width modulation (PWM) is a common type of dimming used to adjust the current in white-LEDdriver devices. PWM dimming takes a rectangle waveform with variable positive duty cycle (D) and adjuststhe LED current proportionally. For many smaller format white LED drivers (7-inch screen size or smaller),the PWM signal is converted to a DC control voltage and made to drive the LED current in

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制造商分类

• Semiconductors > Power Management > LED Driver > Backlight LED Driver