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Texas Instruments UCC28911 | Demoboard PMP30070
Universal Input to 12V@670mA & -10V@50mA Isolated Flyback with Integrated Switch Reference Design
Overview
| Topology | Flyback Converter |
| Input voltage | 90-270 V |
| Output 1 | 12 V / 0.67 A |
| Output 2 | -10 V / 0.05 A |
| IC revision | C |
Description
A quasi-resonant primary-side regulated Flyback supplies an isolated output 12V @ 670mA and non-isolated output -10V @ 50mA from universal input voltage (90Vac to 270Vac). The controller integrates 700V FET and the board is able to withstand up to 350VAC without damage and switches OFF for Vin > 285VAC
Features
Simple isolated PSR flyback converter with integrated 700V FETCompact solution supplies 8.5W with almost flat efficiency (70%...81%) from 5% to 100% loadOpto-less topology increases the reliability of the power supplyGood cross-regulation performance between outputs (+/-5% on main output)
More information
Products
| Order Code | Datasheet | Simulation | Downloads | Product series | VIN | VOut1 (V) | IOut1 (mA) | Vaux (V) | Vaux 2 (V) | fswitch (kHz) | L (mH) | NPRI : NSEC : NAUX | ISAT (mA) | VT (V (AC)) | L (mm) | W (mm) | H (mm) | Mount | Size | IR (A) | RDC max. (Ω) | fres (MHz) | Version | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | 7508110347 | SPEC | 4 files | MID-OLTI Offline Flyback Transformers for Texas Instruments | 64 - 283 V (AC) | 12 | 670 | 15 | 10 | 110 | 1.2 | 8.75:1:1.25:0.875 | 625 | 4600 | 22.2 | 25 | 16 | THT | EE20/10/6 | – | – | – | – | ||
 | 7447462102 | SPEC | 8 files | WE-TI Radial Leaded Wire Wound Inductor | – | – | – | – | – | – | 1 | – | 270 | – | 6 | 6 | 8.5 | THT | 5075 | 0.25 | 6 | 2.3 | Heat Shrinking Tube |
| Order Code | Datasheet | Simulation | |
|---|---|---|---|
| 7508110347 | SPEC | |
| 7447462102 | SPEC |
| Samples |
|---|
| Order Code | Datasheet | Simulation | Downloads | Product series | VIN | VOut1 (V) | IOut1 (mA) | Vaux (V) | Vaux 2 (V) | fswitch (kHz) | L (mH) | NPRI : NSEC : NAUX | ISAT (mA) | VT (V (AC)) | L (mm) | W (mm) | H (mm) | Mount | Size | IR (A) | RDC max. (Ω) | fres (MHz) | Version | Samples |
|---|