AccuSwitch™ Off-Line Digital PWM Converter with 800V Bipolar Power Transistor
Jump to Page Section:
Overview
Description
Integrated with a highly accurate control circuit, the iW1816 operates in a quasi-resonant mode allowing it to easily meet global energy efficiency standards, with less than 30mW of no-load power consumption.
The iW1816 includes an adaptive soft-start circuit that intelligently controls start-up over a range of output voltages from 5V to 12V and higher, and into capacitive loads up to 6000µF, making it ideal for applications such as smart meters, home appliances and networking equipment. The iW1816 also incorporates Renesas' PrimAccurate™ primary-side digital control algorithms that enable a fully isolated solution without the need for an optocoupler, reducing cost and solution size while greatly improving reliability. Additional functionality includes full protection from over-temperature, overvoltage and overcurrent conditions as well as EZ-EMI® design techniques to allow for a solution that easily meets global EMI specifications.
Features
- Meets proposed mandatory federal efficiency standards for external power supplies
- AccuSwitch™ - Integrated 800V power bipolar junction transistor (BJT)
- Adaptively controlled soft start-up - Fast yet smooth start-up into large capacitive loads
- Optimized for 5W output power range capable
- Easily meets Energy Star® AC-DC power supply efficiency specs (Rev. 2.0)
- Less than 30mW no-load power consumption
- PrimAccurate™ - Primary-side control, no optocoupler needed
- Quasi-resonant control for optimal efficiency
- EZ-EMI™ design to easily meet global EMI specifications
- 64kHz PWM switching frequency
- Fully protected from fault conditions:
- Over-temperature protection
- Output overvoltage and overcurrent
- Sense-resistor short circuit protection
Applications
Applications
- Smart meters
- Motor control
- Networking devices
- Home automation and appliances
Design & Development
Models
ECAD Models
Schematic symbols, PCB footprints, and 3D CAD models from SamacSys can be found by clicking on products in the Product Options table. If a symbol or model isn't available, it can be requested directly from the website.
Product Options
Processing table
| SOIC-7 | Tape & Reel | Get Samples, |
Tips for Using This Parametric Table:
- Hide Filters button in header: Collapse or expands filters
- Column sort buttons in header: Sort Column alphabetically / numerically descending or ascending
- Reset button in header: Reset all filters to the page default
- Full Screen button in header: Expand the table to full screen view (user must close out of full screen before they can interact with rest of page)
- Export button in header: Export the filtered results of the table to an Excel document
- Filter parts search bar in header: Type to filter table results by part number
- Hide column button in column headers: Select to hide columns in table
- AND / OR toggle switches in header: Toggles the logic of this particular filter to be “AND” or “OR” logic for filtering results
- Multiselect checkboxes at beginning of each row in table: Select these checkboxes to compare products against each other
- Document icon next to product name in row: View the featured document for this product
- Chip icon next to the right of the document icon in row: View the block diagram for this product
- Cart icon to the right of the chip icon: Indicates that samples are available for this product