Texas Instruments

TPS92075 降压型 PFC LED 驱动器

TI 具有数字基准控制功能的非隔离式相位可调光 LED 驱动器

Texas Instruments 的 TPS92075 降压型 PFC LED 驱动器图片Texas Instruments 的 TPS92075 是一款内置相位调光解码器的混合型功率因数控制器 (PFC)。 该器件使用一个内部、低功耗数字控制器来连续分析线路周期，以实现整形和对称。 功率转换器级生成一个模拟电流基准，并利用该基准调节输出电流。 该器件使用控制算法来控制这一模拟基准。 这些算法会对调光器兼容性、功率因数和总谐波失真 (THD) 进行优化。

这一解决方案采用恒定关断时间控制，实现了低元件数和高能效，并天生拥有开关频率变化。 这种变化造成一种仿真扩频效应，从而简化了转换器的 EMI 签名并可使用一个更小的输出滤波器。

特性
  • 受控型基准派生式 PFC
  • 集成式数字相位角解码器
  • 数字式 50/60 Hz 同步
  • 相位对称平衡
  • 恒定 LED 电流工作
  • 快速启动
  • 通过模拟基准控制进行调光
  • 平滑的调光转换
  • 过压保护
  • 反馈式短路保护

TPS92075 Buck PFC LED Driver

图片制造商零件编号描述内部开关电压 - 供电（最低）电压 - 供电（最高）可供货数量价格
IC LED DRIVER OFFL TRIAC 8SOICTPS92075D/NOPBIC LED DRIVER OFFL TRIAC 8SOIC无11V18V0 - 立即发货$13.14查看详情

Evaluation Module

图片制造商零件编号描述输出和类型特性所含物品可供货数量价格
MODULE EVAL FOR TPS92075TPS92075EVMMODULE EVAL FOR TPS920751，非隔离可调光板4 - 立即发货$424.78查看详情
发布日期： 2014-10-07

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