HR1001A Enhanced LLC Controller with Adaptive Dead-Time Control The Future of Analog IC Technology DESCRIPTION FEATURES HR1001A is the OCP auto-recovery version of Two-Level Over-Current Protection: HR1001B. Frequency Shift and Auto-Recovery Mode HR1001A is an enhanced LLC controller, which with Programmable Duration Time provides new features of adaptive dead-time Adaptive Dead-Time Adjustment adjustment (ADTA) and capacitive mode Capacitive Mode Protection protection (CMP). 50% Duty Cycle, Variable Frequency Control for Resonant Half-Bridge Converter The adaptive dead-time adjustment inserts a 600V High-Side Gate Driver with Integrated dead time between the two complimentary gate Bootstrap Diode with High dv/dt Immunity outputs automatically. This is ensured by High-Accuracy Oscillator keeping the outputs off while sensing the dv/dt Operates up to 600kHz current of the half-bridge switching node. The Latched Disable Input for Easy Protection ADTA features easier design, lower EMI, and higher efficiency. Remote On/Off Control and Brown-Out Protection through BO HR1001A incorporates anti-capacitive mode Programmable Burst Mode Operation at protection, which prevents potentially Light Load destructive capacitive mode switching if the Non-Linear Soft Start for Monotonic Output output is shorted or has a severe overload. Voltage Rise This feature protects the MOSFET during SOIC-16 Package abnormal conditions, making the converter robust. APPLICATIONS HR1001A has a programmable oscillator that LCD and PDP TVs sets both the maximum and minimum switching Desktop PCs and Servers frequencies. It starts up at a programmed Telecom SMPS maximum switching frequency and decays until AC/DC Adapter, Open-Frame SMPS the control loop takes over to prevent excessive Video Game Consoles inrush current. Electronic Lighting Ballast HR1001A enters a controlled burst mode at All MPS parts are lead-free, halogen-free, and adhere to the RoS directive. light load to minimize the power consumption For MPS green status, please visit the MPS website under Quality Assurance. MPS and The Future of Analog IC Technology are registered and tighten output regulation. trademarks of Monolithic Power Systems, Inc. HR1001A provides rich protection features, including two-level OCP, autorecovery, external latch shutdown, brown in/out, CMP, and OTP, improving converter design safety with minimal extra components. HR1001A Rev.1.1 www.MonolithicPower.com 1 3/14/2016 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. 2016 MPS. All Rights Reserved. HR1001A ENHANCED LLC CONTROLLER TYPICAL APPLICATION BO Vdc Cbst SS BST 16 1 Rss TIMER HG S1 2 15 Lr CT SW 14 Css 3 CT FSET NC 4 13 D1 Output HR1001A C S2 Rfmax HBVS BURST VCC 12 5 Lm CS LG Rfmin 11 6 BO GND 10 7 HBVS VCC LATCH 9 8 Cr D2 Rf Cs Rs Cf TL431 HR1001A Rev.1.1 www.MonolithicPower.com 2 3/14/2016 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. 2016 MPS. All Rights Reserved.