A8516ELBTR-T
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A8516ELBTR-T

  • Category:Driver chip
  • Product Name:LED backlight drivers for LCD monitors and TVs
  • Manufacturers:Allegro
  • Production Batch Number:15+
  • Encapsulation:24-lead SOIC
  • Stock Status:There is stock
  • Stock Quantity:9020
  • Minimum order quantity: 1
  • Details:点击查找A8516ELBTR-T的pdf资料
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  • Product introduction

A8516是一款用于背光 LCD 显示器和电视的多输出 WLED/RGBdrive。它结合了升压控制器,可驱动外置 MOSFET 和六个内部电流汲入装置。升压转换器在恒定频率(可编程)电流模式下运行。

LED 灌电流可通过外部 R_ISET 电阻器设置(见以下图表)。多个 LED 灌电流可以结合在一起以为每个 LED 串实现更高的电流。

A8516 可采用单电源运行,电压范围为 8 至 24 V。它可提供过压、 LED 串开路、短路以及过热保护。两级逐波限流功能可提供软启动和过载保护。

此设备配有通过内置熔凝引脚增强散热性的 24 引脚 SOICW 封装 (LB), 以及通过外置散热垫增强散热性的 24 引脚 TSSOP 封装。所有封装都为无铅封装,采用 100% 雾锡电镀引脚框。

  • 集成 6 个电流汲入装置
  • 带有集成门极驱动器的恒频电流模式控制
  • 300 kHz to 1 MHz 可调升压开关频率
  • 使用启用、PWM 信号或电池电压斜升等选项控制启动
  • LED 串之间的电流自主均流共享可实现±0.6% 的精确度与匹配率
  • 在 PWM 光暗控制过程中没有可闻的陶瓷电容器噪音
  • Adjustable Overvoltage Protection (OVP)
  • 开路或短路 LED 串保护
  • 过温、逐波限流及欠压保护
  • SOIC 24 引脚封装便于单层 PCB 生产,而带有外置散热垫的 TSSOP 24 引脚封装则能提高散热性能。

 

 

andA8516ELBTR-TRelated ICs are:


Model Manufacturers lot number encapsulation illustrate
A8516ELBTR-T Allegro 15+ 24-lead SOIC LED backlight drivers for LCD monitors and TVs

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