The HR1001A is an enhanced LLC controller on Whatsminer power supplies that offers new features such as Adaptive Dead Time Adjustment (ADTA) and Capacitive Mode Protection (CMP). The HR1001A features anti-capacitive mode protection that prevents potentially damaging capacitive mode switching in the event of an output short circuit or severe overload. The HR1001A enters controlled burst mode at light loads to minimize power consumption and enhance output regulation. It also provides rich protection features, including two-level OCP, auto-recovery, external latched shutdown, CMP, and OTP, to increase converter design safety with minimal additional components.

Feature:

• Adaptive dead time adjustment

• Capacitive mode protection

• 50% duty cycle, variable frequency control of resonant half-bridge converter

• 600V high-side gate driver with integrated bootstrap diode and high dv/dt immunity high-precision oscillator

• Operating frequency up to 600kHz

• Latch disable input for easy protection

• Remote on/off control and undervoltage protection via BO

• Programmable burst mode operation at light loads

• Non-linear soft start for monotonic output voltage rise

• SOIC-16 package

Application:

• Whatsminer power supply

• LCD and PDP TVs

• Desktop computers and servers

• Telecom switching power supply

• AC/DC adapter, open SMPS

• Video game consoles

• Electronic lighting ballasts