Overview
Description
The iW1812 is a high-performance AC/DC converter with an integrated 800V power bipolar junction transistor (BJT). Capable of 5W output power, the iW1812 operates in a quasi-resonant mode to optimize efficiency and it also incorporates a low power mode that enables less than 30mW of power consumption at no load, meeting global energy efficiency standards and making it ideal for applications such as energy standard compliant home appliances.
The iW1812 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
- AccuSwitch™ - Integrated 800V BJT
- 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
- Ultra-low 1.7µA start-up current
- 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
- Output overvoltage and overcurrent
- Input undervoltage protection
- Sense-resistor short circuit protection
- Over-temperature protection
Comparison
Applications
- Smart meters
- Motor control
- Industrial power supplies
- Home automation and appliances
Documentation
Featured Documentation
Log in required to subscribe
|
|
|
|
|---|---|---|
| Type | Title | Date |
| Datasheet | PDF 1.15 MB | |
| White Paper | PDF 597 KB | |
2 items
|
||
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.
Processing table
| SOIC-7 | Tape & Reel | 1 | 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