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A8512 数据表 (PDF) - Allegro MicroSystems

A8512 Datasheet PDF - Allegro MicroSystems
部件名 A8512
下载  A8512 下载

文件大小   491.29 Kbytes
  16 Pages
制造商  ALLEGRO [Allegro MicroSystems]
网页  http://www.allegromicro.com
标志 ALLEGRO - Allegro MicroSystems
功能描述 LED Backlight Driver for Medium/Large Displays

A8512 Datasheet (PDF)

Go To PDF Page 下载 数据表
A8512 Datasheet PDF - Allegro MicroSystems

部件名 A8512
下载  A8512 Click to download

文件大小   491.29 Kbytes
  16 Pages
制造商  ALLEGRO [Allegro MicroSystems]
网页  http://www.allegromicro.com
标志 ALLEGRO - Allegro MicroSystems
功能描述 LED Backlight Driver for Medium/Large Displays

A8512 数据表 (HTML) - Allegro MicroSystems

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A8512 产品详情

Description
The A8512 is a multi-output WLED/RGB driver for backlighting LCD monitors and televisions. It integrates a boost controller to drive external MOSFET, and six internal current-sinks. The boost converter operates in constant frequency (programmable) current mode control.
PWM dimming allows LED currents to be controlled in 500:1 ratio. The LED sink current is set by an external R_ISET resistor (see chart below). More than one LED sinks can be combined together to achieve even higher current per LED string. Multiple A8512s can be connected in parallel, with one master controller controlling the boost stage, and up to five slave controllers, which act as LED sinks. This allows up to 36 LED strings to be powered by just one boost converter.

Features and Benefits
▪ Six integrated high current sinks
▪ Fixed frequency current mode control with integrated gate driver
▪ 300 kHz to 1 MHz adjustable switching frequency
▪ Controlled startup using options of Enable, PWM signal, or
   battery voltage ramp
▪ Parallel operation with one boost controller (master) and up to
   five slave controllers
▪ Active current sharing between LED strings for ±0.6% accuracy
   and matching
▪ No audible MLCC noise during PWM dimming
▪ Adjustable overvoltage protection (OVP)
▪ Open or shorted LED string protection
▪ Overtemperature, cycle-by-cycle current limit, and
   undervoltage protection
▪ SOIC 24-pin package for easy single-side PCB manufacturing,
   or TSSOP 24-pin and QFN 28-contact packages with exposed
   thermal pad for better thermal performance



类似零件编号 - A8512

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关于 Allegro MicroSystems


Allegro MicroSystems is a semiconductor company that designs, manufactures, and markets high-performance power and sensing solutions. The company was founded in 1990 and is headquartered in Manchester, New Hampshire, USA.

Allegro MicroSystems' product portfolio includes Hall-effect sensors, power ICs, motor drivers, and magnetic digital position sensors. These products are used in a wide range of applications, including automotive, industrial, and consumer electronics.

Allegro MicroSystems is known for its expertise in magnetic sensing technology, which is used in many of its products. The company's products are designed to meet the highest standards of performance and reliability, and are manufactured using the latest technology and materials. Allegro MicroSystems also offers custom design and engineering services to meet the specific needs of its customers.

Allegro MicroSystems has a global presence, with sales offices and representatives located around the world. The company is dedicated to delivering innovative and reliable power and sensing solutions that meet the evolving needs of the electronics industry. In 2021, Allegro MicroSystems went public through an initial public offering (IPO) on the NASDAQ stock exchange.

*此信息仅供一般参考,对于因上述信息造成的任何损失或损害,我们概不负责。




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