HR1001A is the OCP auto-recovery version of HR1001B. HR1001A is an enhanced LLC controller, which provides new features of adaptive dead-time adjustment (ADTA) and capacitive mode protection (CMP). 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. HR1001A 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. HR1001A 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. HR1001A enters a controlled burst mode at light load to minimize the power consumption and tighten output regulation. HR1001A provides rich protection features, including two-level OCP, auto recovery, external latch shutdown, brown in/out, CMP, and OTP, improving converter design safety with minimal extra components.
Show moreShow less
Log in to your account
Create New Account
Log in to continue
A Plus account is required to perform this action.
Log in to your myMPS+ account or create one now.
Don’t have a myMPS+ account yet?
Get early access to new products, datasheets, and free samples.