RT8543中文資料6-String 43V White LED Driver with Boost Regulator數(shù)據(jù)手冊(cè)Richtek規(guī)格書(shū)
| 廠商型號(hào) |
RT8543 |
| 參數(shù)屬性 | RT8543 封裝/外殼為20-WFQFN 裸露焊盤(pán)；包裝為卷帶（TR）剪切帶（CT）Digi-Reel? 得捷定制卷帶；類(lèi)別為集成電路（IC）的LED驅(qū)動(dòng)器；RT8543應(yīng)用范圍：背光；產(chǎn)品描述：IC LED DRVR CTRL PWM 50MA 20WQFN |
| 功能描述 | 6-String 43V White LED Driver with Boost Regulator |
| 封裝外殼 | 20-WFQFN 裸露焊盤(pán) |
| 制造商 | Richtek Richtek Technology Corporation |
| 中文名稱 | 立锜科技 立锜科技股份有限公司 |
| 數(shù)據(jù)手冊(cè) | |
| 更新時(shí)間 | 2026-1-20 22:30:00 |
| 人工找貨 | RT8543價(jià)格和庫(kù)存，歡迎聯(lián)系客服免費(fèi)人工找貨 |
RT8543規(guī)格書(shū)詳情
描述 Description
The RT8543 is a high efficiency white LED driver. It is designed for LCD panel that employs an LED array as the lighting source. An integrated switch current mode Boost controller drives six strings in parallel and supports up to 10 pieces of LEDs per string. The internal current sinks support maximum ±2% current matching for excellent brightness uniformity in each LED string. To provide enough headroom for the operating of current sink, Boost controller monitors the minimum voltage of feedback pins and regulates an optimized output voltage for power efficiency.
The RT8543 has wide input voltage range from 2.5V to 24V and provides adjustable 5mA to 50mA LED current. The internal 200mΩ, 43V power switch with current-mode control provides cycle-by-cycle over-current protection. The RT8543 also integrates PWM and analog dimming functions for accurate LED current control. The input PWM dimming frequency can operate from 100Hz to 20kHz without inducing any inrush current in LED or inductor.
The RT8543 is available in thin WQFN-20L 4x4 and UQFN-20L 4x4 packages.
特性 Features
?Wide Input Voltage : VIN 2.5V to 24V
?Current Mode Boost Regulator
?Adjustable Full Channel Current from 5mA to 50mA and Matched to 2%
?Dimming Controls
?Built-In Soft-Start to Prevent Inrush Current without External Capacitor
?Protection
?20-Lead WQFN and UQFN Package
?RoHS Compliant and Halogen Free
應(yīng)用 Application
? UMPC and Notebook Computer Backlight
技術(shù)參數(shù)
- 制造商編號(hào)
：RT8543
- 生產(chǎn)廠家
：Richtek
- Vin(min)(V)
：2.5
- Vin(max)(V)
：24
- SWFreq(typ)(kHz)
：600
- NumberofLEDs(max)(pcs)
：13
- Iout(max)/channel(mA)
：50
- Iq(typ)(mA)
：4
- DimmingControl
：PWM
- Topology
：Boost + Current Source
- Features
：Adjustable Frequency;Current Mode Control;Cycle-by-Cycle Current Limit;Enable Input;OCP;OVP
- Package Type
：UQFN4x4-20;WQFN4x4-20
| 供應(yīng)商 | 型號(hào) | 品牌 | 批號(hào) | 封裝 | 庫(kù)存 | 備注 | 價(jià)格 |
|---|---|---|---|---|---|---|---|
RICHTEK |
24+ |
QFN |
80000 |
只做自己庫(kù)存 全新原裝進(jìn)口正品假一賠百 可開(kāi)13%增 |
詢價(jià) | ||
RICHTEK/立锜 |
20+ |
QFN |
19570 |
原裝優(yōu)勢(shì)主營(yíng)型號(hào)-可開(kāi)原型號(hào)增稅票 |
詢價(jià) | ||
RICHTEK/立锜 |
22+ |
QFN |
100000 |
代理渠道/只做原裝/可含稅 |
詢價(jià) | ||
24+ |
QFN |
20000 |
全新原廠原裝，進(jìn)口正品現(xiàn)貨，正規(guī)渠道可含稅?。?/div> |
詢價(jià) | |||
RICHTEK |
1428+ |
QFN-20 |
35 |
一級(jí)代理,專(zhuān)注軍工、汽車(chē)、醫(yī)療、工業(yè)、新能源、電力 |
詢價(jià) | ||
RICHTEK |
23+ |
QFN-20 |
12800 |
##公司主營(yíng)品牌長(zhǎng)期供應(yīng)100%原裝現(xiàn)貨可含稅提供技術(shù) |
詢價(jià) | ||
RICHTEK |
ROHS+Original |
NA |
8910 |
專(zhuān)業(yè)電子元器件供應(yīng)鏈/QQ 350053121 /正納電子 |
詢價(jià) | ||
RICHTEK |
22+ |
QFN-20 |
20000 |
公司只做原裝 品質(zhì)保障 |
詢價(jià) | ||
RICHTEK/立锜 |
21+ |
QFN |
880000 |
明嘉萊只做原裝正品現(xiàn)貨 |
詢價(jià) | ||
RICHTEK/立锜 |
23+ |
QFN |
8678 |
原廠原裝 |
詢價(jià) |
