RT8511BGQW

Richtek
® RT8511B 43V Asynchronous Boost WLED Driver General Description Features The RT8511B is an LED driver IC that can support up to 10 WLED in series. It is composed of a current mode boost converter integrated with a 43V/2.2A power switch running at a fixed 500kHz frequency and covering a wide VIN range from 2.7V to 24V.  Wide Input Voltage Range : 2.7V to 24V  High Output Voltage : up t...
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Технические характеристики

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Корпус DFN-8 WDFN8
Рабочая частота
Максимальное выходное напряжение
Диапазон входных напряжений
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® RT8511B 43V Asynchronous Boost WLED Driver General Description Features The RT8511B is an LED driver IC that can support up to 10 WLED in series. It is composed of a current mode boost converter integrated with a 43V/2.2A power switch running at a fixed 500kHz frequency and covering a wide VIN range from 2.7V to 24V.  Wide Input Voltage Range : 2.7V to 24V  High Output Voltage : up to 43V Direct PWM Dimming Control and Frequency from 100Hz to 8kHz Internal Soft-Start and Compensation 200mV Reference Voltage PWM Dimming with Internal Filter Programmable Over Voltage Protection Over Temperature Protection Current Limit Protection Thin 8-Lead WDFN Package RoHS Compliant and Halogen Free        For brightness dimming, the RT8511B is able to maintain steady control of the LED current. Therefore, no audible noises are generated on the output capacitor. The RT8511B also has programmable over voltage pin to prevent the output from exceeding absolute maximum ratings during open LED conditions. The RT8511B is available in WDFN-8L 2x2 package. Ordering Information  Applications   UMPC and Notebook Computer Backlight GPS, Portable DVD Backlight Pin Configurations (TOP VIEW) RT8511B Package Type QW : WDFN-8L 2x2 (W-Type) OVP FB DIMC GND Lead Plating System G : Green (Halogen Free and Pb Free) Note : 8 1 3 GND The white LED current is set with an external resistor, and the feedback voltage is regulated to 200mV (typ.). During operation, the LED current can be controlled by the PWM input signal in which the duty cycle determines the feedback reference voltage.  6 4 9 5 2 7 EN PWM VIN LX WDFN-8L 2x2 Richtek products are :  RoHS compliant and compatible with the current requirements of IPC/JEDEC J-STD-020.  Marking Information 0F : Product Code Suitable for use in SnPb or Pb-free soldering processes. 0FW Copyright © 2015 Richtek Technology Corporation. All rights reserved. DS8511B-05 February 2015 W : Date Code is a registered trademark of Richtek Technology Corporation. www.richtek.com 1 PDF
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43V Asynchronous Boost WLED Driver The RT8511B is an LED driver IC that can support up to 10 WLED in series. It is ,composed of a current mode boost converter integrated with a 43V/2.2A power ,switch running at a fixed 500kHz frequency a...

Дата модификации: 04.10.2018

Размер: 137.3 Кб

11 стр.

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