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reference designUCC28730 | Demoboard UCC28730EVM-552

Texas Instruments UCC28730 | Demoboard UCC28730EVM-552

Using the UCC28730EVM-552 10-W Adaptor Module With PSR and Wake-Up Monitor

Overview

TopologyFlyback Converter
Input voltage85-265 V
Switching frequency0.05-50 kHz
Output 15 V / 2 A

Description

The UCC28730EVM-552 evaluation module is a 10-W off-line discontinuous mode (DCM) flyback converter that provides constant-voltage (CV) and constant-current (CC) output regulation without the use of an optical coupler. The primary side controller detects a wake-up signal from the secondary side voltage droop monitor UCC24650 for improved transient response to large load steps. The EVM demonstrates how the UCC28730 can provide ultra-low standby power without sacrificing start-up time or output transient response with an internal 700-V start-up switch, dynamically controlled operating states, and a tailored modulation profile.

Features

Less than 5mW of no-load powerPrimary side regulation eliminates opto-couplerWake-up detection helps minimize no-load switching frequency and output capacitance+/-5% voltage and current regulation across line and loadResonant ring valley switching operation for highest overall efficiency

Typical applications

  • Adapters/chargers for smart phones, tablets, and consumer electronics
  • SMPS for home appliance and building automation
  • TV and monitor power supplies

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7508111120
SPECTransformer
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Status Activei| Production is active. Expected lifetime: >10 years.
Product series Transformer
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