TEXAS INSTRUMENTS UCC28700EVM-068 评估模块, UCC28700EVM-068
The evaluation module helps designers evaluate the performance of the UCC28700 constant voltage, constant current output regulation without the use of an optical coupler. The device process information from the primary power switch and an auxiliary flyback winding for precise control of output voltage and current. Low start up current, dynamically controlled operating states and a tailored modulation profile support very low stand by power without sacrificing start up time or output transient response. The 5W EVM is used for evaluating an off line adapter for USB applications. It converts a 90V to 265V RMS input voltage down to 5VDC, with a 1A current limit for USB adapter applications.
- .
- Less then 30mW no load power for 5 star rating
- .
- Primary side regulation PSR eliminates opto coupler
- .
- ±5% Voltage & Current Regulation
- .
- 130KHz max. switching frequency enables high power density charger designs
- .
- Quasi resonant valley switching operation for highest overall efficiency
- .
- Wide VDD range 35V allows small bias capacitor
- .
- Drive output for MOSFET
- .
- Protection functions: over voltage, low line, over current
Failure to follow warnings and instructions may result in personal injury, property damage, or death due to electrical shock and/or burn hazards.