Datasheet > A9912

A9912

更新时间： 2022-02-26 12:26:32

品牌	Logo	应用领域
创瑞 - AITSEMI		驱动输入元件
页数	文件大小	规格书
10页	248K
描述
85~265V AC INPUT LED CONSTANT CURRENT DRIVER

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A9912 数据手册

A9912

AiT Semiconductor Inc.

AC-DC LED DRIVER

www.ait-ic.com

85~265V AC INPUT LED CONSTANT CURRENT DRIVER

DESCRIPTION

FEATURES

The A9912 is a high voltage buck control IC for

constant LED current regulation. The A9912

operates constant off-time mode. It allow efficient

operation of High Brightness (HB) LEDs from voltage

sources ranging from 8VDC up to 450VDC or

110VAC/220VAC.



Switch mode controller for single switch LED

Drivers



Open loop peak current controller

Wide Input range from 8VDC~450VDC or

110VAC/220AC



Application from a few mA to more than 1A

output

The A9912 includes a PWM dimming input that can

accept an external control signal with a duty ratio of

0~100% and a frequency of up to a few kilohertz, and

the dimming also accept a 0~1.2V linear input signal.

The RNTC pin can accept a 0~250mV Line Dimming

input witch be used for temperature compensation of

the LED current.



Up to hundreds of LEDs

Constant off-time operation

Linear and PWM dimming capability

Requires few external components for operation

Temperature compensation to regulate LED

current



Available in SOP8 Package

The A9912 is available in SOP8 package.

APPLICATION

ORDERING INFORMATION



DC/DC or AC/DC LED driver applications

Package Type

SOP8

Part Number

A9912M8R

A9912M8VR

RGB backlighting LED driver

General purpose constant current source

Signal and decorative LED lighting

V: Halogen free Package

Note

R: Tape & Reel

SPQ: 3K/Reel

TYPICAL APPLICATION

AiT provides all RoHS products

Suffix “ V “ means Halogen free Package

REV1.1

- OCT 2013 RELEASED, MAY 2015 REVISED -

- 1 -

12 3 4 5 6 7...10

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