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MIC3291 bảng dữ liệu (PDF) - Micrel Semiconductor

MIC3291 Datasheet PDF - Micrel Semiconductor
tên linh kiện MIC3291
tải về  MIC3291 tải về

kích thước tập tin   830.81 Kbytes
Page   17 Pages
nhà sản xuất  MICREL [Micrel Semiconductor]
Trang chủ  http://www.micrel.com
Logo MICREL - Micrel Semiconductor
Giải thích chi tiết về linh kiện 1.2MHz PWM White LED Driver with Internal Schottky Diode and Single-Wire Linear Brightness Control

MIC3291 Datasheet (PDF)

Go To PDF Page tải về bảng dữ liệu
MIC3291 Datasheet PDF - Micrel Semiconductor

tên linh kiện MIC3291
tải về  MIC3291 Click to download

kích thước tập tin   830.81 Kbytes
Page   17 Pages
nhà sản xuất  MICREL [Micrel Semiconductor]
Trang chủ  http://www.micrel.com
Logo MICREL - Micrel Semiconductor
Giải thích chi tiết về linh kiện 1.2MHz PWM White LED Driver with Internal Schottky Diode and Single-Wire Linear Brightness Control

MIC3291 bảng dữ liệu (HTML) - Micrel Semiconductor

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MIC3291 Thông tin chi tiết sản phẩm

General Description
The MIC3291 is a PWM switching boost regulator that is optimized for constant current white LED (WLED) driver applications. The MIC3291 features an internal Schottky diode, allowing an efficient DC/DC solution that requires only four external components.

Features
• Single wire combines 16 level linear brightness and shutdown control
• 18V / 25V OVP options supports up to four and six WLEDs
• Startup in any one of 16 brightness levels
• Internal Schottky diode
• 2.5V to 6.5V input voltage
• 1.2MHz PWM operation
• Over 500mA switch current
• 250mV reference voltage
• ±5% LED current accuracy
• <1µA shutdown current
• UVLO and over-temperature protection
• Thin SOT23-6L package option
• 2mm × 2mm leadless MLF® package option
• –40°C to +125°C junction temperature range

Applications
• Mobile handsets
• LCD handset backlighting
• Digital cameras
• Portable media players/MP3 players
• Portable applications




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