LED驱动（十八）富微半导体

搜索：

高级

注册会员

首页 资讯 供应 求购 展会信息 招聘 求职 资料共享 器件手册 技术文章 会员中心 电源沙龙

		当前位置：首页>资讯>技术文章>文章内容

LED驱动（十八）富微半导体

作者：power 来源：网络点击：日期：2007-09-03

A701/2

    A701/2 are adjustable constant current drivers for LED  applications. Six regulated current ports are designed to provide uniform and pure DC constant current sinks for driving LEDs within a large range VF variations.
   A701/2 provide users 6-channel constant current ports to match LEDs with equal current. Users may adjust the output current from 5mA to 40mA through an external resistor, RSET, which gives user flexibility in controlling the light intensity of LEDs. It also could precisely adjust LED brightness from 0% to 100% via output enable pin (OE) with Pulse Width Modulation signal.
     The thermal protection function protects IC from over temperature (150°C). Also, the thermal pad enhances the package power dissipation.

A703
      A703 is a high voltage, adjustable constant current driver for LED applications. Two regulated current ports are designed to provide uniform and pure DC constant current sinks for driving LEDs within a large range VF variations.
     A703 provides users 2-channel constant current ports to match LEDs with equal current. Users may adjust the output current from 20mA to 150mA through an external resistor, RSET, which gives users flexibility in controlling the light intensity of LEDs. It also could adjust LED brightness from 0% to 100% via enable pin (EN) with Pulse Width Modulation signal.
     The thermal protection function protects IC from over temperature (150°C). Also, the thermal pad enhances the package power dissipation.

A705
The A705 is a low dropout current regulator rated for 220mA constant sink current. The low quiescent current and low dropout voltage is achieved by advanced Bi-CMOS process.

AMC7110/1/3/4
   The AMC7110 series is member of ADDM North Star White/Blue LED driver family. No external component is required. Especially good for use Li-ion battery powered LCD display’s backlight white LEDs.
   The special circuit design provides over 90% efficiency
in low noise.
   Target end applications are color LCD display, such as mobile phone with color display, smart phone, PDA, etc.

AMC7135
The AMC7135 is a low dropout current regulator rated for 350mA constant sink current. The low quiescent current and low dropout voltage is achieved by advanced Bi-CMOS process.

AMC7140
The AMC7140 is a high voltage, low drop-out current regulator for maximum output current up to 700mA. The output current was decided by external resistor. The output sink current could be disabled via OE pin
Build-in thermal protection to prevent the chip over heat damage.

AMC7150
AMC7150 is a PWM power LED driver IC. The driving current from few milliamps up to 1.5A. It allows high brightness power LED operating at high efficiency from 4Vdc to 40Vdc. Up to 200KHz external controlled operation frequency. External resistor controlled the maximum output current to single LED or a LED string.