RT8549L集成电路（IC）的LED驱动器规格书PDF中文资料

厂商型号	RT8549L
参数属性	RT8549L 封装/外壳为16-WFDFN 裸露焊盘；包装为卷带（TR）剪切带（CT）Digi-Reel® 得捷定制卷带；类别为集成电路（IC）的LED驱动器；RT8549L应用范围：背光；产品描述：IC LED DRIVER RGLTR 180MA 16WDFN
功能描述	24V/60V Boost Converter with SMBus Controlled 4-CH LED Driver
封装外壳	16-WFDFN 裸露焊盘
文件大小	406.69 Kbytes
页面数量	24 页
生产厂商	RichTek
中文名称	立锜科技
网址	网址
数据手册	下载地址一下载地址二到原厂下载
更新时间	2025-12-12 23:01:00
人工找货	RT8549L价格和库存，欢迎联系客服免费人工找货

General Description

The RT8549L is a high efficiency Boost converter with

4-CH LED driver supporting 60V maximum output voltage.

It is designed for LCD panel applications that employs

LED as lighting sources. The Boost converter generates

a suitable output voltage to drive four LED strings in parallel

and supports up to 18 LEDs per string.

The RT8549L supports a wide input voltage range from

4.2V to 24V and provides a SMBus interface to control

the LED brightness dimming mode, operating frequency

and LED currents. The internal 150mΩ, 60V power switch

with current-mode control provides high efficiency

operation.

The RT8549L is available in the WDFN-16L 5x5 package

to achieve optimized solution for PCB space.

Applications

 UMPC and Notebook Computer Backlight

特性 Features

 Wide Operating Input Voltage : 4.2V to 24V

 Max 60V Output Voltage

 3 LED Current Accuracy

 2 LED Current Matching

 Low Drop Output 120mA/0.4V Current Sink

 SMBus Programs LED Current, Switching

Frequency, Dimming Mode

 LED Current : 22.58mA to 180mA

 Switching Frequency : 200kHz to 900kHz

 Dimming Mode : PWM, DC, Mixed-Mode

 Built-in Input UVP, Output OVP, OCP, and Soft-Start

 Support LED Hot-plug, Open/Short Detection

 Low EMI, Low Acoustic Noise

 16-Load WDFN Package

 RoHS Compliant and Halogen Free