iW1700

< 5mW no-load standby power

The iW1700 is a high performance AC/DC controller designed to drive an external power bipolar junction transistor (BJT) for peak current mode PWM flyback power supplies. The iW1700 is a zero no-load power product, having less than 5mW of power consumption at no load, easily meeting the US DoE’s external power supply standard and the EU’s Code of Conduct, version 5, tier 2, external power supply standard. The virtually zero no-load power consumption makes it ideal for adapters in portable electronics and power supplies for consumer electronics.

作为使用初级侧控制算法的PrimAccurate™控制器，IW1700不需要任何直接的二次侧反馈组件，从而消除了对光耦合器的需求，降低了组件计数和解决方案成本。附加功能包括对话的专有EZ-EMI™技术，准谐振控制，用于厚重负载，电缆和连接器电压降补偿选项，完全保护故障条件和微小的包装。

Zero No-Load Power Consumption - Easily Meets DoE External Power Supply and EU Code of Conduct, Version 5, Tier 2 Standards

• Less than 5mW at No-Load

Meets Proposed Mandatory Federal Efficiency Standards for External Power Supplies¹

Low 1.7uA Start-Up Current

Active Start-Up Circuit to Reduce Turn-on Time

72kHz PWM Switching Frequency

电压Offset Compensation for Voltage Loss in Cables and Connectors (4 Options)

PrimAccurate™ - Primary-Side Control, No Optocoupler Needed

Intrinsically Low Noise Solution - No Audible Noise Over Entire Operating Range

Quasi-resonant Control for Optimal Efficiency

EZ-EMI™ Design to Easily Meet Global EMI Specifications

Fast Dynamic Load Regulation

完全免受故障条件的影响

• Over-Temperature Protection
• Output Over-Voltage and Over-Current
• Input Undervoltage Protection
• 感测电阻短路保护

便携式电子设备的电源适配器

Consumer Electronics Power Supplies

Linear AC/DC Power Supply Replacement

Real Time Waveform Analysis Helps Optimize Charger Performance