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RT4533/RT4533A

可驱动10只LED的异步 Boost 转换器

RT4533/RT4533A
New

RT4533/A 是具备驱动10只串联 WLED 的高集成度 LED 驱动器，它包括了一个电流模式 Boost 转换器和 36.5V/1.2A 的功率开关。
RT4533/A 可在 2.5V~5.5V 的输入电压范围内以 1.1MHz 的工作频率工作，使用一只电阻即可设定 LED 电流，回馈电压为 200mV/300mV。
调光方面，RT4533/A 支持 PWM 调光法，对回馈系统的参考电压进行调节。

应用

  • 手机
  • 数码相机
  • 便携式设备

主要规格

RT4533 RT4533A
Status Active Active
Vin (min) (V) 2.5 2.5
Vin (max) (V) 5.5 5.5
SW Freq (typ) (kHz) 1100 1100
Number of LEDs (max) (pcs) 10 10
Iout (max)/channel (mA) 30 30
Iq (typ) (mA) 0.35 0.35
Dimming Control PWM PWM
Topology Boost Boost
Features Cycle-by-Cycle Current Limit;Enable Input;OVP;Stable with Ceramic Capacitor;UVP Cycle-by-Cycle Current Limit;Enable Input;OVP;Stable with Ceramic Capacitor;UVP
Package Type TSOT-26 TSOT-26

关键特性

  • 输入电压范围：2.5V~5.5V

  • 36.5V 开路保护电压，容许驱动10只 WLED

  • PWM调光控制

  • 参考电压 200mV/300mV，精度 ±2%

  • 1.1MHz 工作频率

  • 内建软启动

  • 过温保护

  • 内部补偿

  • 电流限制

  • 符合 RoHS 规范，不含卤素

Application Notes

Datasheet

DS4533A-03.pdf

Datasheet

DS4533A-03.pdf

RT4533GJ6
Package Type:TSOT-26
样品 购买

Evaluation Boards

EVB_RT4533GJ6
购买
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