Enhanced LLC Controller 16-Pin SOIC T/R

The HR1001B is an enhanced LLC controller, which provides new adaptive dead-time adjustment (ADTA) and capacitive mode protection (CMP) features. The adaptive dead-time adjustment inserts a dead time between the two complimentary gate outputs automatically. This is ensured by keeping the outputs off while sensing the dv/dt current of the half-bridge switching node. The ADTA features easier design, lower EMI, and higher efficiency. The HR1001B incorporates anti-capacitive mode protection, which prevents potentially destructive capacitive mode switching if the output is shorted or has a severe overload. This feature protects the MOSFET during abnormal conditions, making the converter robust. The HR1001B has a programmable oscillator that sets both the maximum and minimum switching frequencies. It starts up at a programmed maximum switching frequency and decays until the control loop takes over to prevent excessive inrush current. The HR1001B enters a controlled burst mode at light load to minimize the power consumption and tighten output regulation. The HR1001B provides rich protection features, including two-level OCP with external latch shutdown, auto-recovery, brown in/out, CMP, and OTP, improving converter design safety with minimal extra components. Adaptive dead-time adjustment Capacitive mode protection 50% Duty Cycle, Variable Frequency Control For Resonant Half-Bridge Converter 600V High-Side Gate Driver with Integrated Bootstrap Diode with High dv/dt immunity Operates up to 600kHz Two-Level Over-Current Protection: Frequency Shift and Latched Shutdown with Programmable Duration Time Latched Disable Input for Easy Protection Remote On/Off Control and Brown-Out Protection through the BO Pin Programmable Burst Mode Operation at Light Load Non-Linear Soft Start for Monotonic Output Voltage Rise SOIC-16 Package