UCC28730 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 wake-up 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...
UCC28730 Key Features
- 1 Enables Zero-Power (<5 mW) standby consumption
- Smart Wake-Up detection enables smallest output capacitance
- Primary-side regulation (PSR) eliminates optocoupler
- ±5% voltage regulation and current regulation across line and load
- 700-V start-up switch
- 83-kHz maximum switching frequency enables
- Frequency-dither to ease EMI pliance
- Clamped gate-drive output for MOSFET
- Overvoltage, low-line, and overcurrent protection
- Programmable cable pensation
UCC28730 Applications
- Adapters and chargers for smart phones, tablets, and other consumer electronics