Texas Instruments UCC28730 | Demoboard PMP10407

Description

The UCC28730 isolated-flyback power supply controller provides Constant-Voltage (CV) and Constant-Current (CC) output regulation without the use of an optical coupler, and signal detection to improve transient response to large load steps. A minimum switching frequency of 30 Hz facilitates achieving less than 5 mW of no-load power. This device processes information from the primary power switch and an auxiliary flyback winding for precise control of output voltage and current. The monitoring works with a secondary-side alarm device such as the UCC24650 to deliver rapid response to heavy load steps using minimal output capacitance.

Features

Remark: BOM is added with main pdf.

Enables (<5 mW) Standby ConsumptionSmart Detection Enables Smallest Output CapacitancePrimary-Side Regulation (PSR) Eliminates Opto-coupler±5% Voltage Regulation and Current Regulation Across Line and Load700-V Start-up Switch83-kHz Maximum Switching Frequency Enables Low Stand-by Power Charger DesignsResonant-Ring Valley-Switching Operation for Highest Overall EfficiencyFrequency-Dither to Ease EMI ComplianceClamped Gate-Drive Output for MOSFETOver-Voltage, Low-Line, and Over-Current Protection FunctionsProgrammable Cable CompensationSOIC-7 Package

More information

• Datasheet
• IC product information