iW1825

700V AccuSwitch™ AC/DC Digital Primary-Side Converter with Configurable Light Load Mode for Applications up to 25W

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实现快速DLR和空载电源的优化

iW1825AccuSwitch开关™digital PWM controller integrates a highly accurate control circuit with a 700V power MOSFET switch to provide a complete solution for off-line power conversion at up to 25W of output power.

对话框的初准™primary-side digital control algorithms eliminate the need for failure-prone optocouplers and ensures excellent cross-regulation accuracy for multiple output designs, to enable the longer operating lifetime, high performance and reduced cost required for embedded, networking and home appliance applications.

iW1825has a configurable light load mode operation to enable optimization between no-load standby power and fast DLR. It can achieve <75mW at no load, with the fastest DLR setting and <30mW in the lowest setting. The iW676 synchronous rectifier controller with active voltage positioning can be used with the iW1825 to enable the lowest no-load standby power, fastest DLR and highest efficiency for 25W applications.

Features

25W Output
AccuSwitch开关™Integrated 700V Power MOSFET
初准™原边控制
- No Optocoupler Needed
精确电压交叉调节的智能数字控制回路
符合全球能效标准
Configurable Light Load Mode to Optimize No-Load Power Consumption and DLR
- <30mW至<75mW空载功耗
Works with the iW676 SR Controller with Active Voltage Positioning (AVP)
- AVP – Enables <30mW No-Load Power Consumption and Fast DLR
Quasi-resonant Control for Optimal Efficiency
Adaptively Controlled Soft Start-up
Fast, Smooth Start-up into Large Capacitive Loads (up to 6,000µF)
EZ-EMI™Design
- Reduces Filtering Requirements
- Easily Meets Global EMI Specifications
完全防止故障
- Built-In Over-Temperature Protection
- 输出过压、过流保护
- 感测电阻短路保护
- 热效率SO-10蝙蝠翼组件