Analog Analog SolutionsRobust Reliable Performance MC33771 and MC33664 Battery Cell Controller and Transformer Physical Layer Overview Freescales MC33664 transformer physical layer and MC33771 battery cell controller solution Automotive Applications enables reliable, safe and bill of materials (BOM) optimized Li-ion cell control applications with High-voltage battery low-cost, robust, high-speed isolated communication. These fully integrated battery monitoring management systems (> 800 V) devices are for automotive and industrial mission critical applications. Battery topology flexibility 48 V battery management is supported with compatibility including 48 V batteries with one analog front end (AFE). systems High speed and robust daisy chain is used as an alternative to CAN solutions. Fast data acquisition and communication to the pack controller can be achieved in only 2.6 ms for the pack Industrial Applications controller to acquire conversions from 96 cells. Also, determination of individual cell impedances in Energy storage systems (ESS) one shot is synchronized for cell voltages and current measurements within 65 us. Uninterrupted power supply With functional verification and diagnostics, the MC33664 and MC33771 support ISO 26262 (UPS) SafeAssure functional safety. Functional verification of cell measure, current measure, cell E-bikes, E-scooters terminal openings or leakage and ADC precision checks are all performed. MC33771 and MC33664 High-Voltage Battery Management System HV BMS 14 cells 33771 14 cells 33664 current 33771MC33664 and MC33771 Product Differentiation Features Benefits Integrated current channel and Coulomb counting Reduces BOM for 48 V battery applications (only one AFE required) Integrated current channel synchronized with cell Determination of individual cell impedances in one shot for improved SoC/SoH prediction voltage measurements Optional high speed isolated or SPI communication Addresses all existing battery management system topologies (centralized, distributed daisy chain, distributed CAN) High speed (2 Mbps) isolated high speed differential Allows BOM cost reduction by transition from CAN to daisy chain without compromise on communication speed communication Fast data acquisition and communication to pack Determination of individual cell impedances in one shot, synchronized cell voltages and current measurements controller within 65 us Robust against hot plug and random cell connection No pre-damaging of cell and no damaging of devices during customer battery/electronics assembly ESD/EMC robustness ESD/EMC robustness avoids external components for robustness protection (BOM reduction, board space reduction) Supports ISO 26262 SafeAssure functional safety Has functional verification and diagnostics with single package solution Low-level drivers Simplifies software development and reduces switching cost Documentation Features 9.6 V VPWR 61.6 V operation, Freescale Document Number Title Description 70 V transient MC33771 Battery Cell Controller Data Sheet SPI or Isolated 2 MHz differential MC33664 Transformer Physical Layer Data Sheet communication SG1002 Analog Product Selector Guide Selector Guide 14x differential cells voltage and stack SG187 Automotive Product Selector Guide Selector Guide voltage measurements SG200 Industrial Product Selector Guide Selector Guide Synchronized cell voltage/current measurement with Coulomb counting 7x ADC/GPIO/temperature sensor inputs Freescale: A Leader in Analog Solutions Addressable on initialization Expanding on more than 30 years of Onboard 300 mA passive cell balancing innovation, Freescale is a leading provider Low-power modes of high-performance products that use 64-pin QFP package SMARTMOS technology combining digital, power and standard analog functions. Freescale supplies analog and power management ICs that are advancing the automotive, consumer, industrial and networking markets. Analog solutions interface with real world signals to control and drive for complete embedded systems. For more information visit freescale.com/battery Freescale, SafeAssure, SafeAssure logo and the Freescale logo are trademarks of Freescale Semiconductor, Inc., Reg. U.S. Pat. & Tm. Off. SMARTMOS is a trademark of Freescale Semiconductor, Inc. All other product or service names are the property of their respective owners. 2014 Freescale Semiconductor, Inc. Document Number: MC33664FS REV 1