Texas Instruments UCG28828EVM-094 Evaluation Module (EVM)

Texas Instruments UCG28828EVM-094 Evaluation Module (EVM) enables designers to evaluate the operation and performance of the UCG28828 aux-less QR-flyback controller. This evaluation module demonstrates how the Texas Instruments UCG28828 drives a quasi-resonant flyback converter to achieve high efficiency throughout the load and the universal line input.

Features

Integrated 750V GaN with 170mΩ R_ds(on), dynamic QR/DCM/CCM modes of operation, and peak current mode controlled QR flyback converter
Supports AC input voltage 90V_AC to 264V_AC at 43Hz - 63Hz line frequency and output power of 20V/5A, 24V/5A and 28V/4.3A
This evaluation module can also be configured for 5V/3A, 9V/3A, 12V/3A and 15V/3A with PFC disabled for all this output voltage
High efficiency and low-standby power, and two-stage (PFC + Flyback) peak efficiency: > 93% efficiency at 115V_AC input and approx. 95% efficiency at 230V_AC input

PFC needs a minimum of 20mA at a 20V output setting to enable the PFC circuit across the input voltage
Self-bias and aux-less sense, integrated current sense, integrated HV startup, and integrated X-cap discharge enable the lowest BOM cost by integration
Complete sets of protection features, which include OVP, OTP, Short circuit, overcurrent protection, and brown-in and out protection
A discrete brown-out circuit is implemented for the UCC28056 PFC transition mode controller
This evaluation module includes TI parts which are UCG28828, UCC28056, LMG3622, LM8364 and ATL431