UC1861 Overview
Controls Zero Current Switched (ZCS) The UC1861-1868 family of ICs is optimized for the control of Zero Curor Zero Voltage Switched (ZVS) rent Switched and Zero Voltage Switched quasi-resonant converters. DifQuasi-Resonant Converters ferences between members of this device family result from the various binations of UVLO thresholds and output options. Additionally, the Zero-Crossing Terminated One-Shot one-shot...
UC1861 Key Features
- Controls Zero Current Switched (ZCS) The UC1861-1868 family of ICs is optimized for the control of Zero Curor Zero Volta
- Zero-Crossing Terminated One-Shot one-shot pulse steering logic is configured to program either on-time for Timer ZCS sy
UC1861 Applications
- Programmable Restart Delay pensate the overall system loop and to drive a voltage controlled oscillator Following Fault (VCO), featuring programmable minimum an
- Low Start-Up Current (150µA typical) Under-Voltage Lockout is incorporated to facilitate safe starts upon
- Dual 1 Amp Peak FET Drivers power-up. The supply current during the under-voltage lockout period is typically less than 150µA, and the outputs are actively forc
- UVLO Option for Off-Line or DC/DC state. (continued) Applications