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MAX17690

MAX17690

60V、无光耦、隔离反激控制器

小尺寸、高成效、易于实施的隔离型DC-DC控制器

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概述

说明

MAX17690为峰值电流模式、固定开关频率控制器，特别设计用于工作在非连续传导模式(DCM)的隔离反激结构。器件直接检测原边开关关断期间原边反激波形的隔离输出电压，无需辅助绕组或光耦调节输出电压。

MAX17690设计工作在4.5V至60V较宽电源范围。开关频率从50kHz至250kHz可编程。EN/UVLO引脚允许用户在相应输入电压时准确开启/关断电源。MAX17690通过OVI引脚提供输入过压保护。MAX17690的内部LDO输出为7V，使其非常适合切换逻辑电平和反激转换器中使用的标准MOSFET。源出/吸入电流为2A/4A，MAX17690可理想用于驱动低RDS(ON)功率MOSFET，具有快速栅极跳变时间。MAX17690提供可调节软启动功能，以限制启动期间的浪涌电流。

MAX17690提供温度补偿功能，补偿输出二极管正向压降。MAX17690拥有可靠的打嗝保护和热保护机制，采用节省空间的16引脚3mm x 3mm TQFN封装，工作在-40°C至125°C温度范围。

MAX17690: Application Circuit MAX17690: Application Circuit 放大+

关键特性

  • 4.5V至60V输入电压范围
  • 无需光耦或第三个绕组即可驱动反激信号通过隔离栅。
  • 2A/4A最大源出/吸入栅极驱动电流
  • 50kHz至250kHz可设置开关频率
  • 输入EN/UVLO功能
  • 输入过压保护
  • 可编程软启动
  • 打嗝模式短路保护
  • 热关断保护
  • -40°C至125°C工作温度范围
  • 节省空间的16引脚3 x 3 TQFN封装

应用

  • 工业和电信应用
  • 隔离反激转换器
  • PLC I/O模块
  • 宽范围直流输入隔离电源

参数规格


Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific and version-specific prices and delivery, please see the price and availability page or contact an authorized distributor.

设计资源


MAX17690EVKITA: MAX17690评估板
MAX17690EVKITB: MAX17690评估板
MAX17690EVKITC: Evaluation Kit for the MAX17690 In Dual-Output Configuration
MAX17690EVKITE: MAX17690 评估板
MAX17690EVKITG: MAX17690评估套件
MAX17690EVKITD: MAX17690 评估套件，器件为无光耦反激控制器，带有副边同步整流

技术资料

白皮书 7070 Meeting the Power Management Challenges of the Smart Grid
应用笔记 6394 How to Design a No-Opto Flyback Converter with Secondary-Side Synchronous Rectification

工具和模型

  • EE-Sim: MAX17690 设计和仿真

    • 质量与环境

    产品可靠性报告: MAX17690.pdf 
    型号   生产流程   工艺   样本量   不合格   FIT @ 25°C   FIT @ 55°C   Material Composition  

    备注： 通过技术手段对故障率进行汇总，并映射到相关的材料部件号。 故障率与被测件的数量密切相关。

    质量管理体系 >
    环境管理体系 >

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