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SM8132AB中文資料NPC數(shù)據(jù)手冊PDF規(guī)格書

SM8132AB
廠商型號

SM8132AB

功能描述

White LED Driver IC

文件大小

137.23 Kbytes

頁面數(shù)量

18

生產(chǎn)廠商 Nippon Precision Circuits Inc
企業(yè)簡稱

NPC

中文名稱

Nippon Precision Circuits Inc官網(wǎng)

原廠標(biāo)識
數(shù)據(jù)手冊

下載地址一下載地址二

更新時間

2024-12-24 8:30:00

SM8132AB規(guī)格書詳情

OVERVIEW

The SM8132A is a charge pump DC/DC converter that switches between ×1and ×1.5 automatically. The SM8132A switches between ×1 and ×1.5 according to detected LED drive current, so that the battery life can be prolonged to the fullest extent. Since the connected LED are all detected for the switching, the SM8132A can respond to the variation of LED forward voltage. 4-channel of LED drive current control circuit is built-in, the SM8132A can control 1 to 4 lights of white LED, which are connected in parallel. The LED drive current per channel is set up by external resistor. Besides, the input signal controlling of EN pin allows ON/OFF and dimming.

FEATURES

■ Battery life extension by automatic charge pump switch between ×1 and ×1.5 according to the

detection of the LED drive current

■ Controlling 1 to 4 lights of white LED connected in parallel

■ Set up LED drive current value by external resistor (5k?:5mA/ch, 15k?:15mA/ch, 0k?:20mA/ch)

■ 1-wire input controlling

■ ON/OFF and brightness control by input signal controlling of EN pin

■ Soft start circuit built-in

■ Thermal shut down circuit built-in

■ Supply voltage range

? No-load current (IOUT=0mA): 2.7 to 4.6V

? Load current (IOUT=80mA): 3.3 to 4.6V

■ Maximum output voltage: 4.2V (typ)

■ Maximum output current: 80mA (typ)

■ Quiescent current

? Not-switching (×1 mode): 0.3mA (typ)

? Switching (×1.5 mode): 1.0mA (typ)

■ Standby current (Power save mode): 0.01μA (typ)

■ Operating frequency (×1.5 mode): 750kHz (typ)

■ LED drive current matching (RSET =20k?): ± 3

■ Package: 16-pin QFN WL-CSP (under development)

APPLICATIONS

■ Cellular phone

■ PDA

■ Portable games

■ Handy terminal

■ Digital still camera

■ Digital video camera

■ LCD back light

■ White LED driving

產(chǎn)品屬性

  • 型號:

    SM8132AB

  • 制造商:

    NPC

  • 制造商全稱:

    Nippon Precision Circuits Inc

  • 功能描述:

    White LED Driver IC

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