Reference Designs
Ultra-wide Input Range, Dual Output, Offline AC/DC Bias Supply with PSR Control and BJT Switch
Texas Instruments
This design uses low cost primary side regulation (PSR) IC UCC28722 with a bipolar transistor for ultra-wide input range applications (85VAC to 528VAC). Two outputs with separated grounds, 5V/0.3A and 16.5V/0.1A are generated.
Features
- Ultra-wide AC input range: 85VAC-528VAC
- Dual Output with separated grounds, 5V/0.3A and 16.5V/0.1A
- 3W Maximum output power rating at efficiency of 63.6% at 85Vac, 61.7% at 528Vac
- Low cost, 800V bipolar transistor as primary switch for Flyback converter
- Total 18% output cross-regulation on 5V rail, from no load to full-load
- Total 13% output cross-regulation on 15V rail, from no load to full-load
Featured products
| Manufacturer: | Texas Instruments |
|---|---|
| Part Family: | DP83TC811-Q1 |
| Status: | ACTIVE |
| ROHS: | Y |
| PB Free: | Y |
| Manufacturer: | Texas Instruments |
|---|---|
| Part Family: | UCC15240-Q1 |
| Status: | ACTIVE |
| ROHS: | Y |
| PB Free: | Y |
| Manufacturer: | Texas Instruments |
|---|---|
| Part Family: | TMP1827 |
| Status: | ACTIVE |
| ROHS: | Y |
| PB Free: | Y |
| Manufacturer: | Texas Instruments |
|---|---|
| Part Family: | SN74AHC1G02-Q1 |
| Status: | ACTIVE |
| ROHS: | Y |
| PB Free: | Y |
| Manufacturer: | Texas Instruments |
|---|---|
| Part Family: | DLP301S |
| Status: | ACTIVE |
| ROHS: | Y |
| PB Free: | Y |
| Manufacturer: | Texas Instruments |
|---|---|
| Part Family: | TMUXHS221LV |
| Status: | ACTIVE |
| ROHS: | Y |
| PB Free: | Y |
