Primary-Side Regulated Flyback with 85 to 265VAC Input (12V @ 0.5A) Reference Design
Description
The PMP8787 reference design uses the UCC28700 flyback controller to generate a 12V/500mA output from a universal AC input. The primary-side regulation technique implemented by the UCC28700 eliminates the need for an opto coupler: reducing the size and cost of the design. In addition: the valley switching of the UCC28700 allows this design to achieve a maximum load efficiency over 80%; no load losses are less than 40mW. The circuit board measures only 28mm by 33mm: with a maximum height below 20mm.
Features
- Primary Side Regulation (no optocoupler)Standby (no load) power consumption is less than 40mWConducted emissions are below Class B levelsCompact form factor 28mm X 33mm X 20mm
Applications
- Small business router
Product Categories
- Power management
| Application Area | End Equipment |
|---|---|
| Small business router | https://www.ti.com/solution/small-business-router#referencedesigns |
| Download the bill of materials for PMP8787 | Download |
Test Data
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Download the test file for PMP8787| Title | Updated | Type | Size (KB) | |
|---|---|---|---|---|
| PMP8787 BOM (Rev. A) | 21 Mar 2016 | 99 | ||
| PMP8787 Schematic (Rev. A) | 21 Mar 2016 | 87 | ||
| PMP8787 Assembly Drawing | 21 Mar 2016 | 95 | ||
| PMP8787 PCB | 10 Mar 2013 | 229 | ||
| PMP8787 Gerber | 10 Mar 2013 | ZIP | 166 |