The UCC28750EVM-071 is a 60-W evaluation module (EVM) for evaluating an off-line power AC to DC flyback converter. The UCC28750EVM-071 is intended for evaluation purposes and is not intended to be an end product. The UCC28750EVM-071 converters 85-V_RMS to 265-V_RMS input voltage down to 24-V_DC, capable of delivering 60 W of output power. This evaluation module uses the UCC287502 Constant-Voltage Flyback Controller Using Opto-Coupled Feed-Back in a 60 W converter to provide 2.5 A of constant charge current. The input accepts a voltge range of 85 VAC to 265 VAC. Depending upon the operating conditions, the control law algorithm modulates the switching frequency or the peak primary current to satisfy the power transfer requirements. The programmable slope compensation enables both CCM and DCM operation. Power-boost mode provides additional power for momentary peak demand.

1. Read and study this user's guide completely before evaluating
2. Order the UCC28750EVM-071 for evaluation if step 1 and 2 is met
3. Setup and test the UCC28750EVM-071 per user's guide instructions