WMSIC Electronic Components

RENESAS IW3689-01 IW3689

ModelIW3689-01
PackageSOIC-8
BrandRENESAS
Price Price on request Electronic component prices change quickly with market supply and demand. Please refer to the latest WMSIC quotation for current pricing.
Configuration
1 options
Configuration Date code within 2 years

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
RENESAS IW3689-01
Type
RENESAS
Minimum package
2500 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
RENESAS
Electronic Component
IW3689-01
Electronic Component
1
Package
SOIC-8
Type
AC-DC
Electronic Component
LEDDriver
Electronic Component
PWM
Electronic Component
0.107g
Electronic Component
1
Channel Count
1
Features
(SCP); LED;; (OTP)
Electronic Component
BM0257410106
Operating Temperature
40℃~+150℃
Switching Frequency
45Hz~66Hz
Electronic Component
5%

For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.

IW3689-01 产品概述

一、产品简介

IW3689-01 是一款面向离线 LED 照明的单通道 AC‑DC 驱动器芯片,由 RENESAS(瑞萨)系列器件规格化。器件采用反激(Flyback)拓扑,兼容降压与升压工作模式,内置 PWM 调光控制,适用于对效率、成本和调光性能有要求的灯具与照明系统设计。

二、核心参数

  • 类型:AC‑DC 离线开关型 LED 驱动器
  • 通道数:1 输出
  • 开关频率:45 Hz ~ 66 Hz
  • 调光方式:PWM 调光输入控制
  • 拓扑结构:反激(Flyback),支持降压/升压工作点
  • 工作温度范围:-40 ℃ ~ +150 ℃
  • 封装:SOIC‑8
  • 品牌:RENESAS(瑞萨)

三、主要特点与优势

  • 单片化离线开关:内含用于离线供电的关键电路块,减少外部元件数量,便于实现紧凑电源设计。
  • 反激拓扑兼容性强:支持降压和升压场景,适配不同 LED 串/并联配置和输入电压范围。
  • PWM 调光支持:通过外部 PWM 信号实现亮度调节,兼容多种调光控制方案(占空比调节)。
  • 宽温工作能力:-40 ℃ 到 +150 ℃ 的工作温度范围,使其适用于室内及室外、工业级等苛刻环境。
  • 标准封装:SOIC‑8 便于手工与自动化贴片制造,适合中小批量及量产项目。

四、典型应用场景

  • 室内/户外 LED 照明灯具(筒灯、射灯、面板灯)
  • 路灯与庭院照明(需宽温与离线驱动)
  • 商业照明与轨道灯
  • 标识与广告灯箱(单通道恒流驱动)

五、封装与引脚(概述)

IW3689-01 提供 SOIC‑8 封装,便于在标准 PCB 设计中实现。常见引脚功能包括电源输入、开关管驱动、PWM 调光输入、参考/反馈以及地线等。具体引脚定义与功能建议参考器件详尽数据手册以保证正确连线与保护设计。

六、设计建议与注意事项

  • 开关频率 45–66 Hz 相对较低,磁性元件(如反激变压器/电感)和滤波电容需按低频设计规范选型,注意体积与散热。
  • 离线设计涉及高压侧安全隔离与电气安全规范(绝缘、爬电距离、Y 电容等),PCB 布局需严格遵循相关标准。
  • PWM 调光输入需保持干净的信号源,避免由开关噪声引起的调光抖动;必要时加滤波或光耦隔离。
  • 虽未在此处列出具体保护特性,建议在系统设计中增加过压、过流与短路保护电路,保证灯具长期可靠性。
  • 高温工作环境下要关注热管理,合理安排铜箔散热、散热片或热传导路径。

七、总结

IW3689-01 是一款面向离线 LED 驱动市场的单通道反激式 PWM 调光控制 IC,具备降压与升压适配能力、宽温工作范围和标准 SOIC‑8 封装。适合追求设计紧凑、具备调光功能且需在复杂环境下长期可靠运行的照明产品。详细电气参数、引脚定义、典型应用电路与设计指南请参考 RENESAS 官方数据手册以完成定稿设计与认证流程。

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