The LTC1922-1 phase shift PWM controller provides all of the control and protection functions necessary to implement a high performance, zero voltage switched, phase shift, full-bridge power converter with synchronous rectification. The part is ideal for developing isolated, low voltage, high current outputs from a high voltage input source. The LTC1922-1 combines the benefits of the full-bridge topology with fixed frequency, zero voltage switching operation (ZVS). Adaptive ZVS circuity controls the turn-on signals for each MOSFET independent of internal and external component tolerances for optimal performance. The LTC1922-1 also provides secondary side synchronous rectifier control. The device uses peak current mode control with programmable slope comp and leading edge blanking. The LTC1922-1 features extremely low operating and start-up currents to simplify off-line start-up and bias circuitry. The LTC1922-1 also includes a full range of protection features and is available in 20-pin through hole (N) and surface mount (G) packages. Applications * Telecommunications, Infrastructure Power Systems * Distributed Power Architectures * Server Power Supplies * High Density Power Modules * Adaptive DirectSense™ Zero Voltage Switching * Integrated Synchronous Rectification Control for Highest Efficiency * Output Power Levels from 50W to Kilowatts * Very Low Start-Up and Quiescent Currents * Compatible with Voltage Mode and Current Mode Topologies * Programmable Slope Compensation * Undervoltage Lockout Circuitry with 4.2V Hysteresis and Integrated 10.3V Shunt Regulator * Fixed Frequency Operation to 1MHz * 50mA Outputs for Bridge Drive and Secondary Side Synchronous Rectifiers * Soft-Start, Cycle-by-Cycle Current Limiting and Hiccup Mode Short-Circuit Protection * 5V, 15mA Low Dropout Regulator * 20-Pin PDIP and SSOP Packages https://elecena.pl/product/253685/synchronous-phase-modulated-full-bridge-controller 2007-03-03 https://elecena.pl/product/253685/synchronous-phase-modulated-full-bridge-controller 2014-05-10 https://elecena.pl/product/253685/synchronous-phase-modulated-full-bridge-controller 2025-01-22