Analog solutions, robust and reliable performance MC33771and MC33664 Battery Cell Controller and Transformer Physical Layer The MC33664 transformer physical layer and MC33771 battery cell controller solution enables reliable, safe and bill of materials (BOM) optimized low-cost Li-ion cell control applications with low-cost, robust, high-speed isolated communication. AUTOMOTIVE APPLICATIONS }} High-voltage battery management systems (> 800 V) measure, cell terminal openings or leakage and ADC precision checks are all performed. }} 48 V battery management systems FEATURES INDUSTRIAL APPLICATIONS }} 9.6 V ≤ VPWR ≤ 61.6 V operation, 70 V transient }} Energy storage systems (ESS) }} SPI or isolated 2 MHz differential communication }} Uninterrupted power supply (UPS) }} 14 x differential cells voltage and stack voltage measurements }} E-bikes, E-scooters These fully integrated battery monitoring devices are for automotive and industrial mission critical applications. Battery topology flexibility is supported with compatibility including 48 V batteries with one analog front end (AFE). High speed and robust daisy chain provides a smart alternative to CAN solutions. Fast data acquisition and communication to the pack controller can be achieved in only 2.6 ms for the pack controller to acquire conversions from 96 cells. Also, determination of individual cell impedances in one shot is synchronized for cell voltages and current measurements within 65 μs. With functional verification and diagnostics, the MC33664 and MC33771 support ISO 26262 SafeAssure functional safety. Functional verification of cell measure, current }} Synchronized cell voltage/current measurement with Coulomb counting }} 7 x ADC/GPIO/temperature sensor inputs }} Addressable on initialization }} Onboard 300 mA passive cell balancing }} Low-power modes }} 64-pin QFP A LEADER IN ANALOG SOLUTIONS Expanding on more than 30 years of innovation, our company is a leading provider of high-performance products that use SMARTMOS technology, combining digital, power and standard analog functions. We supply 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. DOCUMENTATION Document Number Title Description MC33771 Battery Cell Controller Data sheet MC33664 Transformer Physical Layer Data sheet SG1002 Analog Product Selector Guide Selector guide SG187 Automotive Product Selector Guide Selector guide SG200 Industrial Product Selector Guide Selector guide MC33771 and MC33664 High-Voltage Battery Management System MC33664 AND MC33771 PRODUCT DIFFERENTIATION Features Benefits Integrated Current Channel and Coulomb Counting Reduces bill of materials (BOM) for 48 V battery applications (only one AFE required) Integrated Current Channel Synchronized with Cell Voltage Measurements Determination of individual cell impedances in one shot for improved SoC/SoH prediction 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 Communication Allows BOM cost reduction by transition from CAN to daisy chain without compromise on communication speed Fast Data Acquisition and Communication to Pack Controller Determination of individual cell impedances in one shot, synchronized cell voltages and current measurements 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 Strong electrostatic discharge (ESD) protection and electromagnetic compatibility (EMC) avoids the need for external components Supports ISO 26262 SafeAssure Functional Safety with Single Package Solution Has functional verification and diagnostics Low-level Drivers Simplifies software development and reduces switching cost www.nxp.com/battery © 2014–2015 Freescale Semiconductor, Inc. SafeAssure and the SafeAssure 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. All rights reserved. Document Number: MC33664FS REV 2