概览
描述
The iW1830 AccuSwitch™ digital PWM converter integrates a highly accurate control circuit with a 700V power MOSFET to provide a complete solution for off-line power conversion at up to 15W of output power.
Renesas' PrimAccurate™ primary-side digital control algorithms eliminate the need for failure-prone optocouplers and ensure excellent cross-regulation accuracy, to enable the longer operating lifetime, high performance and reduced cost required for white goods applications.
The output is designed to smoothly start-up into large capacitors while maintaining a quick turn-on time. It operates in quasi-resonant mode to optimize efficiency and incorporates a low power mode that achieves <50mW of no-load power consumption to meet global energy efficiency regulations. Additional features include full protection from over-temperature, overvoltage and overcurrent conditions as well as EZ-EMI® technology to meet global EMI specifications.
A DiaSIM™ simulation model is available for the iW1830. For more information and where to download, please visit the DiaSIM™ page.
特性
- 12W – 15W Output Power
- AccuSwitch™ - Integrated 700V Power MOSFET
- PrimAccurate™ Primary-Side Control
- No Optocoupler Needed
- Intelligent Digital Control Loop for Accurate Voltage Cross-Regulation
- Meets Global Energy Efficiency Standards
- < 50mW No-Load Power Consumption
- Quasi-resonant Control for Optimal Efficiency
- Adaptively Controlled Soft Start-up
- Fast, Smooth Start-up Into Large Capacitive Loads
- EZ-EMI™ Design to Meet Global EMI Specifications
- Fully Protected from Fault Conditions:
- Over-Temperature Protection
- Output Overvoltage and Overcurrent
- Sense-Resistor Short Circuit Protection Application
- Thermally Efficient PDIP-7 Package to Support High Power
