Datasheet > BW9910A

BW9910A

更新时间： 2024-11-13 01:23:39

品牌	Logo	应用领域
BWTECH		/
页数	文件大小	规格书
14页	1227K
描述
High Brightness LED Driver

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中文翻译

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BW9910A 数据手册

BW9910/A High Brightness LED Driver

Features

Product Description



Efficiency > 90%

The BW9910/BW9910A is a PWM high-efficiency LED

driver control IC. It allows efficient operation of high

brightness (HB) LEDs from voltage sources ranging from

85V_ACup to 265V_AC. The BW9910/BW9910A controls an

external MOSFET at fixed switching frequency up to

300kHz. The frequency can be programmed using a single

resistor. The LED string is driven at constant current rather

than constant voltage, thus providing constant light output

and enhanced reliability. The output current can be

programmed between a few mA and up to more than 1.0A.

Universal rectified 85V_ACto 265V_ACinput range

Constant current LED driver

Applications from a few mA to more than 1.0A

LED string from one to hundreds of diodes

PWM low-frequency dimming via PWM_D pin

Input voltage surge ratings up to 500V

Internal over temperature protection (OTP)

7.5V MOSFET drive – BW9910

10V MOSFET drive – BW9910A

The BW9910/BW9910A uses a rugged high voltage

junction isolated process that can withstand an input

voltage surge of up to 500V. Output current to an LED

string can be programmed to any value between zero and

its maximum value by applying an external control voltage

Typical Applications



AC/DC or DC/DC LED Driver applications

RGB backlighting LED Driver

Backlighting of flat panel displays

General purpose constant current source

Signage and decorative LED lighting

Buck/Buck-Boost/Boost LED driver

T8/T9/T10 LED tubes

the

linear

dimming

control

input

the

BW9910/BW9910A. The BW9910/BW9910A provides a

low-frequency PWM dimming input that can accept an

external control signal with a duty ratio of 0%~100% and a

frequency of up to a few kHz.

E26/E27 LED bulbs

The BW9910A allows wider range of external MOSFET

which has lower R_DS(ON)(drain-source on resistance) at

higher V_GS. The BW9910/BW9910A is available in SOP-8

and SO8-EP packages.

Typical Application Circuit

www.bruckewell-semi.com/

12 3 4 5 6 7...14

中文翻译

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