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iW1602
Configurable Light Load Operation Mode AC/DC Converter Enables Highly Efficient 30W Travel Adapters with Fast DLR
<30MW无负载功率使用自适应电压定位控制IC(IW676)
The iW1602 is a digital offline AC/DC controller for up to 30W output travel adapters. It uses Dialog’s PrimAccurate™ primary-side control technology to eliminate the need for an optical isolation device on the secondary, reducing component count and cost.
The iW1602 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, theiW676synchronous rectifier controller with integrated active voltage position (AVP) control can be used for faster DLR while keeping the no-load power consumption < 30mW.
The iW1602 integrates a full array of protection features, including Dialog’s SmartDefender™ advanced hiccup technology to protect against soft shorts in travel adapter cables and connectors.
ADiaSIM™simulation model is available for the iW602. For more information and where to download, please visit theDiaSIM™page.
Features
30W AC/DC Digital Controller
Configurable Light Load Mode Optimizes for Low No-Load Power Consumption and Fast DLR
- < 30mW No-Load Power Consumption with Fast DLR (using the iW676-30 Secondary-Side Controller with Active Voltage Positioning)
- <75MW无负载功耗,具有更快的DLR,无需辅助AVP控制器
Compliant with DoE Level VI and EU’s CoC, Version 5, Tier 2 External Power Supply Standards
PrimAccurate™Primary-Side Regulation Technology
Eliminates the Need for Optocoupler
SmartDefender™ Advanced Hiccup Technology
- Helps Address Soft-Shorts in Cables, Connectors without Latching Off
- Helps Protect Cables and Connectors from Excessive Heat and Damage by Reducing Average Power During Short Circuit by at Least 50%
Full Protection Features
- Output Short Circuit Protection
- Output Over Voltage Protection
- Output Over Current Protection
- 过温保护
Block Diagrams
Typical applications diagram
功能框图
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