To order a sample of any of our products, please complete the following form. We will provide up to five parts free of charge. Our sales department will provide pricing for samples orders exceeding five parts.
12W AccuSwitch™ AC/DC Digital Primary-Side Switcher Eliminates Optocoupler and Maintains Excellent Cross-Regulation Accuracy
72kHz integrated 800V BJT optimized for 12Vout
The iW1818 AccuSwitch™ digital PWM converter integrates a highly accurate control circuit with an 800V BJT power switch to provide a complete solution for off-line power conversion at up to 12W of output power.
Dialog's 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, over-voltage and over-current conditions as well as EZ-EMI® technology to easily meet global EMI specifications.
10W – 12W Output Power
AccuSwitch™ - Integrated 800V Power BJT
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 Easily Meet Global EMI Specifications
Fully Protected from Fault Conditions:
Output Over-Voltage and Over-Current
Sense-Resistor Short Circuit Protection Application
Thermally Efficient PDIP-7 Package to Support High Power
Typical application diagram
Functional block diagram
iW1818-EVAL Evaluation Board for 10W Single Output Power Supplies
The iW1818-EVAL evaluation board provides a solution for development of 10W single output power supplies for white goods, home appliances, industrial control equipment and network devices. It uses Dialog’s iW1818 AccuSwitch™ digital off-line power supply controller IC and supplies a 5V: 2A regulated output using a primary-side controlled, quasi-resonant flyback converter.Find out more and buy iW1818-EVAL Summary