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MIC3289-24YML集成電路（IC）的LED驅(qū)動(dòng)器規(guī)格書(shū)PDF中文資料

MIC3289-24YML
廠商型號(hào)

MIC3289-24YML
參數(shù)屬性

MIC3289-24YML 封裝/外殼為8-VFDFN 裸露焊盤(pán)，8-MLF?；包裝為卷帶（TR）；類(lèi)別為集成電路（IC）的LED驅(qū)動(dòng)器；MIC3289-24YML應(yīng)用范圍：背光；產(chǎn)品描述：IC LED DRIVER RGLTR 1.2A 8MLF
功能描述

1.2MHz PWM White LED Driver with Internal Schottky Diode and True 1-Wire Digital Control
封裝外殼

8-VFDFN 裸露焊盤(pán)，8-MLF?
文件大小

368.25 Kbytes
頁(yè)面數(shù)量

13 頁(yè)
生產(chǎn)廠商 Micrel Semiconductor
企業(yè)簡(jiǎn)稱(chēng)

Micrel【麥瑞半導(dǎo)體】

中文名稱(chēng)

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更新時(shí)間

2025-2-10 15:26:00

MIC3289-24YML規(guī)格書(shū)詳情

General Description

The MIC3289 is a PWM boost-switching regulator that is optimized for constant-current white LED driver applications. The MIC3289 features an internal Schottky diode, allowing an efficient DC/DC solution that requires only 4 external components.

The MIC3289 allows for a single wire simple digital interface to control the dimming over 16 steps with a log scale to give better resolution at the lower currents and to better match the sensitivity of the human eye. The preprogramming feature allows the user to select any one of the 16 WLED current levels as the start-up brightness level.

The feedback voltage of the MIC3289 is only 250mV, allowing high efficiency while retaining excellent accuracy for the white LED current.

The MIC3289 implements a constant frequency 1.2MHz PWM control scheme. The high frequency PWM operation saves board space by reducing external component sizes. The 1.2MHz PWM scheme also reduces switching noise and ripple to the input power source.

The 2.5V to 6.5V input voltage range of MIC3289 allows direct operation from single cell Li Ion as well as 3- to 4-cell NiCad/NiMH/Alkaline batteries. Battery life is preserved with a low 1μA shutdown current.

Features

? Single wire combines 16 level logarithmic brightness & shutdown control

? 16V / 24V OVP options supports up to 4 & 6 WLEDs

? Start-up in any one of 16 brightness levels

? Internal Schottky diode

? 2.5V to 6.5V input voltage

? 1.2 MHz PWM operation

? Over 500mA switch current

? 250mV reference voltage

? ±5 LED current accuracy

? <1μA shutdown current

? Over temperature protection

? UVLO

? Thin SOT23-6L package option

? 2mm × 2mm leadless MLF?-8L package option

? –40°C to +125°C junction temperature range

Applications

? White/Blue LED driver for backlighting

- Cell phones

- PDAs

- GPS systems

- Digital cameras

- Multimedia / MP3 players

? LED flashlights

? Constant current power supplies

產(chǎn)品屬性

  • 產(chǎn)品編號(hào)：

    MIC3289-24YML-TR

  • 制造商：

    Microchip Technology

  • 類(lèi)別：

    集成電路（IC） > LED 驅(qū)動(dòng)器

  • 包裝：

    卷帶（TR）

  • 類(lèi)型：

    DC DC 穩(wěn)壓器

  • 拓?fù)洌?/span>

    升壓

  • 內(nèi)部開(kāi)關(guān)：

    是

  • 輸出數(shù)：

    1

  • 電壓 - 供電（最低）：

    2.5V

  • 電壓 -?供電（最高）：

    6.5V

  • 電流 - 輸出/通道：

    1.2A（開(kāi)關(guān)）

  • 頻率：

    1.2MHz

  • 應(yīng)用：

    背光

  • 工作溫度：

    -40°C ~ 125°C（TJ）

  • 安裝類(lèi)型：

    表面貼裝型

  • 封裝/外殼：

    8-VFDFN 裸露焊盤(pán)，8-MLF?

  • 供應(yīng)商器件封裝：

    8-MLF?（2x2）

  • 描述：

    IC LED DRIVER RGLTR 1.2A 8MLF

供應(yīng)商 型號(hào) 品牌 批號(hào) 封裝 庫(kù)存 備注 價(jià)格
Micrel
23+
8-MLFreg
11923
詢(xún)價(jià)
MICROCHIP(美國(guó)微芯)
23+
DFN8(2x2)
7350
現(xiàn)貨供應(yīng),當(dāng)天可交貨!免費(fèi)送樣,原廠技術(shù)支持!!!
 詢(xún)價(jià)
MICROCHIP/微芯
22+
VDFN2x2
8900
英瑞芯只做原裝正品!!!
 詢(xún)價(jià)
MICREL
24+
MLF-8
6980
原裝現(xiàn)貨,可開(kāi)13%稅票
 詢(xún)價(jià)
MICREL
22+
MLF22D-8L
10000
原裝正品優(yōu)勢(shì)現(xiàn)貨供應(yīng)
 詢(xún)價(jià)
Micrel
23+
MLF-8
8560
受權(quán)代理!全新原裝現(xiàn)貨特價(jià)熱賣(mài)!
 詢(xún)價(jià)
MICREL
1844+
MLF22D-8L
6528
只做原裝正品假一賠十為客戶(hù)做到零風(fēng)險(xiǎn)!!
 詢(xún)價(jià)
MICROCHIP(美國(guó)微芯)
2112+
MLF-8
31500
5000個(gè)/圓盤(pán)一級(jí)代理專(zhuān)營(yíng)品牌!原裝正品,優(yōu)勢(shì)現(xiàn)貨,
 詢(xún)價(jià)
MICROCHIP/微芯
22+
08LVDFN2x2
25000
只有原裝原裝,支持BOM配單
 詢(xún)價(jià)
MICROCHIP/微芯
24+
VDFN2x2
32296
原廠原裝 歡迎詢(xún)價(jià)
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