TPS92691-Q1 升压和升压至电池 LED 驱动器评估板 TPS92691EVM-752 (正在供货)

描述/特性

技术文档

支持与培训

订购选项


主要文档
Download - PDF Icon

描述

The TPS92691EVM-752 is a fully assembled and tested LED driver that can be configured as either a boost or a boost-to-battery topology to power a single string of series-connected LEDs. Accurate closed-loop LED current regulation is achieved using a low-offset rail-to-rail current-sense amplifier along with high-side current-sensing implementation. DC LED current set point can be varied over a 15:1 ratio using the high-impedance analog adjust (IADJ) input. An integrated gate driver circuit and proprietary PWM dimming logic are incorporated to enable external series P-channel MOSFET PWM dimming with greater than 100:1 dimming ratio.

LED short-circuit failure and other cable-harness fault detection is facilitated by a current monitor output (IMON), which reports the instantaneous status of LED current measured by the rail-to-rail current-sense amplifier. The current-monitor output can be used in conjunction with microcontroller or discrete circuitry to implement a customized fault-protection scheme based on the lighting application and circuit topology.

 

特性
  • Versatile LED driver capable of driving a string of 1 to 20 series connected white LEDs
  • Wide input voltage range (4.5 V to 18 V): Supports automotive start-stop and load dump transients up to 65 Vmax
  • Better than +/-3% LED current regulation at room temperature using high-side current-sense resistor 
  • Simple circuit interface to set LED current reference and PWM duty cycle
  • Instantaneous current-monitor output facilitates LED fault detection and mitigation

立即订购
器件型号 从德州仪器 (TI) 或第三方购买 结帐选项 状态

TPS92691EVM-752:
TPS92691-Q1 Boost and Boost-to-Battery LED Driver Evaluation Board

$49.00(USD)


价格可能会不同



ACTIVE

应遵守 TI 的评估模块标准条款与条件

技术文档
数据表 (1)
标题 类型 大小 (KB) 日期 下载最新英文版本
PDF 1807 2016年 3月 21日 下载英文版本
用户指南 (1)
标题 类型 大小 (KB) 日期 下载最新英文版本
PDF 1392 2016年 3月 11日
更多文献资料 (1)
标题 类型 大小 (KB) 日期 下载最新英文版本
PDF 38 2019年 1月 2日
相关产品

TI 器件 (2)

器件型号 名称 产品系列
TPS92691  TPS92691 具有轨到轨电流感测放大器的多拓扑 LED 驱动器  LED驱动器 
TPS92691-Q1  TPS92691 具有轨到轨电流感测放大器的多拓扑 LED 驱动器  LED驱动器 

支持与培训

搜索我们广泛的在线知识库,可全天候获得数百万个技术问题和答案。

从 TI 专家处搜索答案

由TI和其社区用户提供的内容仅符合当时状况,不视为TI的标准说明。
请详见网站使用条款

如果您对质量、包装或订购 TI 产品有疑问,请访问我们的支持页面

技术文章