HR1001C Enhanced LLC Controller with Adaptive Dead-Time Control, Capacitive Mode Protection and Enhanced Surge Protection DESCRIPTION FEATURES The HR1001C is an enhanced LLC controller Over-Current Protection (OCP) with that provides adaptive dead-time adjustment Programmable Delay for Enhanced Surge (ADTA) and capacitive mode protection (CMP) Performance features, as well as functional improvements on Adaptive Dead-Time Adjustment (ADTA) surge performance. Capacitive Mode Protection (CMP) ADTA inserts a dead time between the two 50% Duty Cycle, Variable Frequency complimentary gate outputs automatically. This Control for Resonant Half-Bridge Converter is ensured by keeping the outputs off while 600V High-Side Gate Driver with Integrated sensing the dV/dt current of the half-bridge Bootstrap Diode with a High-Accuracy switching node. ADTA features easier design, Oscillator of High dV/dt Immunity lower EMI, and higher efficiency. Operates up to 600kHz Two-Level Over-Current Protection (OCP): The HR1001C incorporates anti-capacitive Frequency Shift and Latched Shutdown with mode protection, which prevents potentially Programmable Duration Time destructive capacitive mode switching if the output is shorted or has a severe overload. Latched Disable Input for Easy Protection This feature protects the MOSFET during Remote On/Off Control and Brown-Out abnormal conditions, making the converter Protection through BO robust. Programmable Burst Mode Operation at Light Load The HR1001C has a programmable oscillator Non-Linear Soft Start for Monotonic Output that sets both the maximum and minimum Voltage Rise switching frequencies. It starts up at a Available in a SOIC-16 Package programmed maximum switching frequency and decays until the control loop takes over to APPLICATIONS prevent excessive inrush current. LCD and PDP TVs The HR1001C enters a controlled burst mode Desktop PCs and Servers at light load to minimize power consumption Telecom SMPS and tighten the output regulation. AC/DC Adapter, Open-Frame SMPS Full protection features include two-level over- Video Game Consoles current protection (OCP) with external latch Electronic Lighting Ballasts shutdown, auto-recovery, brown-in and brown- All MPS parts are lead-free, halogen-free, and adhere to the RoHS out, capacitive mode protection (CMP), and directive. For MPS green status, please visit the MPS website under Quality Assurance. MPS and The Future of Analog IC Technology over-temperature protection (OTP), improving are registered trademarks of Monolithic Power Systems, Inc. converter design safety with minimal extra components. HR1001C Rev.1.0 www.MonolithicPower.com 1 2/6/2017 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. 2017 MPS. All Rights Reserved. HR1001C ENHANCED LLC CONTROLLER Typical Application BO Vdc Cbst SS BST 1 16 Rss HG S1 TIMER 2 15 Lr SW CT Css 3 14 CT NC FSET 4 13 D1 Output HR1001C C S2 HBVS Rfmax VCC BURST 5 12 Lm LG CS Rfmin 6 11 GND BO 7 10 VCC HBVS LATCH 8 9 Cr D2 Rf Cs Rs Cf TL431 HR1001C Rev.1.0 www.MonolithicPower.com 2 2/6/2017 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. 2017 MPS. All Rights Reserved.