瑞萨电子 (Renesas Electronics Corporation)
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RRW43110

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支持 48V 宽输出、具备高功率密度能力的同步整流控制器

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特性

  • 针对 HWLLC 及其他半桥谐振变换器等拓扑结构进行了优化
  • 支持最高 300kHz 开关频率
  • 基于无损 VDS 的同步整流（SR）检测技术
  • 支持高达 48V 或更高电压的宽范围输出电压工作模式
  • 同时支持高侧和低侧同步整流拓扑结构
  • 智能低功耗管理功能，实现超低空载工作电流
  • 6 引脚 SOT23 封装，适配紧凑型系统设计
查找同步整流控制器的其他产品
Functional block diagram of the RRW43110 showing internal control blocks, gate driver, protection circuits, sensing elements, and signal flow between the SR controller, power switch, and external connections.
Diagram showing the RRW43110 used as a high-side synchronous rectification power switch for applications with VDS less than 145V. The circuit includes an auxiliary winding that provides the charging path, highlighting gate drive, current flow, and the SR control loop.
Diagram showing the RRW43110 configured as a low-side synchronous rectification power switch for VDS less than 145V. The circuit uses direct VIN LDO charging, illustrating the gate drive path, conduction direction, and SR control behavior.
Diagram showing the RRW43110 operating as a low-side synchronous rectification power switch for applications where VDS exceeds 145V. The design uses direct VIN LDO charging, with emphasis on the gate drive path, switching node behavior, and SR control timing.
Functional block diagram of the RRW43110 showing internal control blocks, gate driver, protection circuits, sensing elements, and signal flow between the SR controller, power switch, and external connections.
Diagram showing the RRW43110 used as a high-side synchronous rectification power switch for applications with VDS less than 145V. The circuit includes an auxiliary winding that provides the charging path, highlighting gate drive, current flow, and the SR control loop.
Diagram showing the RRW43110 configured as a low-side synchronous rectification power switch for VDS less than 145V. The circuit uses direct VIN LDO charging, illustrating the gate drive path, conduction direction, and SR control behavior.
Diagram showing the RRW43110 operating as a low-side synchronous rectification power switch for applications where VDS exceeds 145V. The design uses direct VIN LDO charging, with emphasis on the gate drive path, switching node behavior, and SR control timing.

描述

RRW43110 是一款先进的同步整流（SR）控制器，可同时兼容 MOSFET 和 GaN 器件。 RRW43110 采用瑞萨电子专有的无损 VDS 检测技术，支持多种拓扑结构，包括半波 LLC（HWLLC）及其他半桥谐振变换器，开关频率最高可达 300kHz。

该器件通过驱动外置功率开关来替代次级侧整流二极管，可在全工况范围内实现高效率运行。 凭借其出色的通用性，RRW43110 非常适用于下一代高功率密度电源设计，支持高达 3W/cm3 的功率密度以及最高 500W 的输出功率。

RRW43110 支持高达 48V 甚至更高电压的宽范围输出电压工作模式，使其能够胜任各类需灵活配置次级侧整流方案的电源应用场景。

此外，该器件还支持低功耗模式和睡眠模式，可优化轻载及空载条件下的系统效率。

产品参数

属性值
FunctionSynchronous Rectifier Controller for High‑Density, Wide-Output Designs

封装选项

Pkg. TypePkg. Dimensions (mm)Lead Count (#)
SOT23-6L0.118 x 0.118 x 0.05126

应用方框图

Compact AC/DC adapter block diagram leverages GaN FETs to deliver 240W of output power and provides a stable 20V/12A DC output across a global AC input range.
240W AC/DC 电源适配器
紧凑型 240W GaN AC/DC 适配器，为高性能系统提供高效稳定的电源。
Power‑efficient AC/DC adapter block diagram leverages GaN FETs to deliver 270W of power from a wide AC input range and provides an adjustable constant‑voltage DC output.
270W AC/DC 电源适配器
高效 270W GaN AC/DC 适配器，具有宽输入范围和可调直流输出。
The AC/DC adapter block diagram features a zero‑voltage switching controller and SuperGaN FETs, and the design is compliant with USB PD EPR, delivering 240 W output.
240W USB PD AC/DC 适配器
高效 240W AC/DC 适配器，配备 USB PD 3.2 EPR 输出接口。

其他应用

  • 适用于智能手机、平板电脑、笔记本电脑及其他便携式设备的快充 AC/DC 适配器
  • 电动工具
  • 电动自行车
  • 工业电源
  • 家用电器
  • 电机控制

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