iW1702中文资料45W Digital AC/DC PWM Controller with Configurable Light Load Operation Mode Optimized for 9V+ Applications数据手册Renesas规格书

描述 Description

The iW1702 is a digital offline controller for AC/DC power supplies up to 45W optimized for 9V or greater output voltages. The part uses Renesas' PrimAccurate™ primary-side control technology, eliminating the need for an optical isolation device on the secondary, reducing component count and cost.

For highest power density power supplies, the iW1702 can be paired with the iW676 digital synchronous rectifier controller, which drives a power MOSFET on the secondary side of the power supply to replace the main rectifying diode.

The iW1702 integrates a unique light load operation mode that allows the user to configure the minimum switching frequency at light load through an external resistor. The higher the light load mode switching frequency, the better the dynamic load response (DLR). If the lowest switching frequency is chosen, the no-load power consumption is reduced, negatively impacting the DLR performance. In this case, the iW676 offers integrated active voltage position (AVP) control options that can be used for faster DLR while keeping the no-load power consumption <75mW.

A full array of protection features are integrated, including SmartDefender™ advanced hiccup technology to protect against soft shorts in cables and connectors.

A DiaSIM™ simulation model is available for the iW1702. For more information and where to download, please visit the DiaSIM™ page.

特性 Features

• 45W maximum output power
• iW1702-0X/3X options:
• External supplemental output overvoltage protection, optimized for 9V+ output voltages

应用 Application

• 交流变频器/GP 逆变器解决方案
• 使用旋转变压器的电机控制方案
• 具备工业网络和功能性安全支持的电机控制系统
• 在线不间断电源 (UPS)