MIC3289集成電路（IC）的LED驅(qū)動器規(guī)格書PDF中文資料
| 廠商型號 |
MIC3289 |
| 參數(shù)屬性 | MIC3289 封裝/外殼為8-VFDFN 裸露焊盤，8-MLF?；包裝為卷帶（TR）；類別為集成電路（IC）的LED驅(qū)動器；MIC3289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 |
| 文件大小 |
368.25 Kbytes |
| 頁面數(shù)量 |
13 頁 |
| 生產(chǎn)廠商 | Micrel Semiconductor |
| 企業(yè)簡稱 |
Micrel【麥瑞半導(dǎo)體】 |
| 中文名稱 | 麥瑞半導(dǎo)體官網(wǎng) |
| 原廠標(biāo)識 |  |
| 數(shù)據(jù)手冊 | |
| 更新時間 | 2024-12-24 22:30:00 |
MIC3289規(guī)格書詳情
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：
MIC3289-16YML-TR
- 制造商：
Microchip Technology
- 類別：
集成電路（IC） > LED 驅(qū)動器
- 包裝：
卷帶（TR）
- 類型：
DC DC 穩(wěn)壓器
- 拓撲：
升壓
- 內(nèi)部開關(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（開關(guān)）
- 頻率：
1.2MHz
- 應(yīng)用：
背光
- 工作溫度：
-40°C ~ 125°C（TJ）
- 安裝類型：
表面貼裝型
- 封裝/外殼：
8-VFDFN 裸露焊盤，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 | 品牌 | 批號 | 封裝 | 庫存 | 備注 | 價格 |
|---|---|---|---|---|---|---|---|
MICREL |
2020+ |
SOT23-6 |
80000 |
只做自己庫存,全新原裝進口正品假一賠百,可開13%增 |
詢價 | ||
MICREL |
21+ |
SOT23-6 |
1372 |
只做原裝,絕對現(xiàn)貨,原廠代理商渠道,歡迎電話微信查 |
詢價 | ||
Microchip |
23+ |
8MLF |
10000 |
原廠原裝正品現(xiàn)貨 |
詢價 | ||
MICREL |
1844+ |
MLF22D-8L |
6528 |
只做原裝正品假一賠十為客戶做到零風(fēng)險!! |
詢價 | ||
MICREL |
22+ |
MLF22D-8L |
10000 |
原裝正品優(yōu)勢現(xiàn)貨供應(yīng) |
詢價 | ||
MICROCHIP/美國微芯 |
21+ |
TSOT-23-6 |
13880 |
公司只售原裝,支持實單 |
詢價 | ||
Microchip現(xiàn)貨 |
2022+ |
8-VFDFN裸露焊盤,8-MLF? |
350000 |
專注工業(yè)、軍工級別芯片,十五年優(yōu)質(zhì)供應(yīng)商 |
詢價 | ||
23+ |
17ROHS |
5002 |
原裝正品--可開增值稅發(fā)票量大可訂貨 |
詢價 | |||
MIC |
21+ |
SOT23-6 |
6500 |
全新原裝現(xiàn)貨 |
詢價 | ||
MICROCHIP/美國微芯 |
2023+ |
TSOT-23-6 |
6000 |
全新原裝深圳倉庫現(xiàn)貨有單必成 |
詢價 |
