HR1001BGS

The adaptive dead-time adjustment feature in the HR1001B controller works by automatically inserting a dead time between the two complimentary gate outputs. This is achieved by keeping the outputs off while sensing the dv/dt current of the half-bridge switching node. The controller incorporates an intelligent ADTA logic circuit that detects the dv/dt of the switching node and inserts the proper dead time automatically. By adjusting the dead time based on the transition shape of the switching node, the ADTA feature ensures easier design, lower EMI, and higher efficiency .

The HR1001B enhanced LLC controller provides new features such as typical performance characteristics generated using an evaluation board with specific design examples

The HR1001B controller offers 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. It also provides capacitive mode protection, which prevents potentially destructive capacitive mode switching if the output is shorted or has a severe overload, making the converter robust.