MC33771BSP2AE NXP

MC33771B SDS Battery cell controller IC Rev. 6.0 22 June 2020 Product short data sheet 1 General description The 33771 is a SMARTMOS lithium-ion battery cell controller IC designed for automotive applications, such as hybrid electric (HEV) and electric vehicles (EV) along with industrial applications, such as energy storage systems (ESS) and uninterruptible power supply (UPS) systems. The device performs ADC conversions of the differential cell voltages and current, as well as battery coulomb counting and battery temperature measurements. The information is digitally transmitted through the Serial Peripheral Interface (SPI) or Transformer Isolation (TPL) to a microcontroller for processing. 2 Features 9.6 V V 61.6 V operation, 75 V transient PWR 7 to 14 cells management Isolated 2.0 Mbps differential communication or 4.0 Mbps SPI Addressable on initialization 0.8 mV maximum total voltage measurement error Synchronized cell voltage/current measurement with coulomb count Total stack voltage measurement Seven GPIO/temperature sensor inputs 5.0 V at 5.0 mA reference supply output Automatic over/undervoltage and temperature detection routable to fault pin Integrated sleep mode over/undervoltage and temperature monitoring Onboard 300 mA passive cell balancing with diagnostics Hot plug capable Detection of internal and external faults, as open lines, shorts, and leakages Designed to support ISO 26262, up to ASIL D safety system Fully compatible with the MC33772 for a maximum of six cells Qualified in compliance with AECQ100NXP Semiconductors MC33771B SDS Battery cell controller IC 3 Simplified application diagram RDTX OUT+ VCOM RDTX OUT- VPWR1 VCOM VPWR2 CT14 CGND battery reference CB14 VANA + AGND battery CB14:13 C reference DGND CT13 FAULT CTn SDA 14 cell EEPROM voltage CBn SCL (OPTIONAL) MCU measure SPI COM EN VCOM CT1 GPIOy FAULT MC33771 GPIOx CB2:1 C RESET + CSB CSB CB1 MISO SO CTREF MOSI SI/RDTX IN+ SCLK SCLK/RDTX IN- battery reference GNDREF VCOM GNDFLG GPIO0 GPIO1 ISENSE+ GPIO2 GPIO3 current GPIO4 measure ISENSE- GPIO5 GPIO6 battery reference aaa-027844 Figure 1.Simplified application diagram, SPI use case MC33771BSDS All information provided in this document is subject to legal disclaimers. NXP B.V. 2020. All rights reserved. Product short data sheet Rev. 6.0 22 June 2020 2 / 29