Datasheet > SQ9910A

SQ9910A

更新时间： 2024-09-25 01:22:31

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其他 - ETC		/
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描述
Universal High Brightness LED Driver

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SQ9910A 数据手册

SQ9910/SQ9910A

Universal High Brightness LED Driver

FEATURES

PRODUCT DESCRIPTION

● >90% Efficiency

● Universal rectified 85 to 265V input range

The SQ9910 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 SQ9910

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

milliamps and up to more than 1.0A.

● Constant-current LED driver

● Applications from a few mA to more than

1A Output

● LED string from one to hundreds of diodes

● PWM Low-Frequency Dimming via

Enable pin

● Input voltage surge ratings up to 500V

● Internal Thermal Protection (OTP)

● 7.5V MOSFET drive – SQ9910

10V MOSFET drive – SQ9910A

The SQ9910 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 at the linear

dimming control input of the SQ9910. The

SQ9910 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 kilohertz

TYPICAL APPLICATIONS

● DC/DC or AC/DC LED Driver application

● RGB Backlighting LED Driver

● Back Lighting of Flat Panel Displays

● General purpose constant current source

● Signage and Decorative LED Lighting

APPLICATION CIRCUIT

12 3 4 5 6 7...10

中文翻译

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与SQ9910A相关器件

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SQ9945AE	VISHAY	获取价格	Package with Low Thermal Resistance
SQ9945AEY	VISHAY	获取价格	Dual N-Channel 60 V (D-S) MOSFET
SQ9945AEY-T1-E3	VISHAY	获取价格	Power Field-Effect Transistor, N-Channel, Metal-oxide Semiconductor FET
SQ9945BEY	VISHAY	获取价格	Automotive Dual N-Channel 60 V (D-S) 175 Â°C
SQ9945BEY_13	VISHAY	获取价格	Automotive Dual N-Channel 60 V (D-S) 175 Â°C
SQ9945BEY-T1-GE3	VISHAY	获取价格	Automotive Dual N-Channel 60 V (D-S) 175 Â°C
SQ9945CEY	VISHAY	获取价格	Automotive Dual N-Channel 60 V (D-S) 175 °C M
SQA300CEJW	VISHAY	获取价格	Automotive N-Channel 30 V (D-S) 175 °C MOSFET
SQA310CEJW	VISHAY	获取价格	Automotive N-Channel 30 V (D-S) 175 °C MOSFET
SQA36A	TI	获取价格	Analog System Monitor and Controller