Description
●The FAN7631 is a pulse-frequency modulation controller for high-efficiency half-bridge resonant converters that includes a high-side gate drive circuit, an accurate current-controlled oscillator, and various protection functions. The FAN7631 features include variable dead time, operating frequency up to 600kHz, protections such as LUVLO, and a selectable latch or A/R protection using the LS pin for user convenience.
●Features
●Variable Frequency Control with 50% Duty Cycle for Half-Bridge Resonant Converter Topologies
●High Efficiency with Zero-Voltage-Switching (ZVS)
●Up to 600kHz Operating Frequency
●Built-in High-Side Gate Driver
●High Gate-Driving Current: +500mA/-1000mA
●Programmable Dead Time with a Resistor
●Pulse Skipping and Burst Operation for Frequency Limit (Programmable) at Light-Load Condition
●Simple Remote On/Off Control with Latch or Auto-Restart (A/R) Using FI or LS Pin
●Protection Functions: Over-Voltage Protection (OVP), Overload Protection (OLP), Over-Current
●Protection (OCP), Abnormal Over-Current Protection (AOCP), Internal Thermal Shutdown (TSD), and High Precise Line Under-Voltage Lockout (LUVLO)
●Level-Change OCP Function During Startup
●Applications
●PDP and LCD TVs
●Desktop PCs and Servers
●Video Game Consoles
●Adapters
●Telecom Power Supplies
