RT8549L数据手册集成电路（IC）的LED驱动器规格书PDF
| 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-CHLED Driver |
| 封装外壳 | 16-WFDFN 裸露焊盘 |
| 制造商 | Richtek Richtek Technology Corporation |
| 中文名称 | 立锜科技 立锜科技股份有限公司 |
| 数据手册 | |
| 更新时间 | 2025-8-24 18:30:00 |
| 人工找货 | RT8549L价格和库存，欢迎联系客服免费人工找货 |
RT8549L规格书详情
描述 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.
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
应用 Application
• UMPC and Notebook Computer Backlight
技术参数
- 制造商编号
：RT8549L
- 生产厂家
：Richtek
- Vin(min)(V)
：4.2
- Vin(max)(V)
：24
- SWFreq(typ)(kHz)
：400
- NumberofLEDs(max)(pcs)
：15
- Iout(max)/channel(mA)
：180
- Iq(typ)(mA)
：3.3
- DimmingControl
：Analog;PWM
- Topology
：Boost + Current Source
- Features
：Adjustable Frequency;Current Mode Control;Cycle-by-Cycle Current Limit;Enable Input;OVP;SCP
- Package Type
：WDFN5x5-16
| 供应商 | 型号 | 品牌 | 批号 | 封装 | 库存 | 备注 | 价格 |
|---|---|---|---|---|---|---|---|
REALTEK |
2024+ |
QFN |
500000 |
诚信服务,绝对原装原盘 |
询价 | ||
RICHTEK/立锜 |
1609+;16+ |
QFN |
1500 |
一级代理,专注军工、汽车、医疗、工业、新能源、电力 |
询价 | ||
RICHTEK/立锜 |
21+ |
QFN |
880000 |
明嘉莱只做原装正品现货 |
询价 | ||
Richtek USA Inc. |
23+ |
16-WFDFN |
3800 |
只做原装,假一赔十 |
询价 | ||
RICHEK |
24+ |
QFN |
5000 |
全新原装正品,现货销售 |
询价 | ||
RICHTEK |
24+ |
QFN |
80000 |
只做自己库存 全新原装进口正品假一赔百 可开13%增 |
询价 | ||
RICHTEK |
18+ |
QFN |
85600 |
保证进口原装可开17%增值税发票 |
询价 | ||
RICHEK |
2447 |
QFN |
100500 |
一级代理专营品牌!原装正品,优势现货,长期排单到货 |
询价 | ||
RICHTEK |
21+ |
QFN |
1200 |
绝对公司现货,不止网上数量!原装正品,假一赔十! |
询价 | ||
RICHEK |
23+ |
QFN |
12800 |
##公司主营品牌长期供应100%原装现货可含税提供技术 |
询价 |
