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iW1697
iW1697
PrimAccurate™在SOT-23封装中的离线数字PWM控制器
A team of engineers is ready to answer your questions
<20MW无负载待机功率
IW1697是一款高性能AC / DC控制器,旨在驱动外部电源双极连接晶体管(BJT),用于峰值电流模式PWM反激电源。IW1697的便携式电子和电源中的墙壁适配器非常适合,IW1697可轻松满足AC / DC单输出电源(Rev 2.0)的Energy-Star®规范,无负载功耗小于20mW。
As aprimAccurate™controller, which use primary-side control algorithms, the iW1697 does not need any direct secondary-side feedback components, eliminating the need for opto-isolators, reducing component count and solution cost. Additional features include Dialog's proprietaryEZ-EMI™technology, quasi-resonant control for optimal efficiency at heavy loads, cable and connector voltage drop compensation options, full protection from fault conditions and tiny packaging. The iW1697 comes in three options, the iW1697-01 with a 300mV voltage drop compensation offset, the iW1697-03 with a 450mV voltage drop compensation offset and the iW1697-05, with 150mV of offset compensation.
Features
- Intrinsically Low Noise Solution - No Audible Noise Over Entire Operating Range
- Easily Meets Energy-Star® AC/DC Power Supply Efficiency Specs (Rev 2.0)
- Less than 20mW No-Load Power Consumption
- 低1.5UA启动电流
- Active Start-Up Circuit to Reduce Turn-on Time
- 40kHz PWM开关频率
- 电压偏移补偿电缆和连接器中的电压损耗(3选项)
Feratures
- PrimAccurate™ - 初级侧控制,无需光耦合器
- Quasi-resonant Control for Optimal Efficiency
- EZ-EMI™ Design to Easily Meet Global EMI Specifications
- 快速动态负载调节
- 完全免受故障条件的影响
- 过温保护
- 输出过电压和过电流
- Input Undervoltage Protection
- 感测电阻短路保护
亚博国际官网平台网址
- 电源适配器的便携式Electronics
- 消费电子电源
- 线性AC / DC电源更换
框图
Typical applications diagram
功能框图
资源
日期 | Version | |
---|---|---|
IW1697 Datasheet. | 24/02/2020 | Rev. 1.3 |
日期 | Version | |
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What is Digital Power White Paper |
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