UC2865
FEATURES
DESCRIPTION
- 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. Dif Quasi-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 pulse steering logic is configured to program either on-time for Timer ZCS systems (UC1865-1868), or off-time for ZVS applications (UC1861- Precision 1%, Soft-Started 5V 1864). Reference The primary control blocks implemented include an error amplifier to
- Programmable Restart Delay pensate the overall system loop and to drive a voltage controlled oscillator Following Fault (VCO), featuring programmable minimum and maximum frequencies. Triggered by the VCO, the one-shot generates pulses of a programmed maxi- Voltage-Controlled Oscillator (VCO) mum...
