SC33771CD1 Datasheet | NXP Semiconductors

Battery cell controller IC Rev. 1.0 - 12 December 2019 Data sheet: technical data PANY CONFIDENTIAL 1 General description The MC33771C 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 transmitted to MCU using one of the microcontroller interfaces, Serial Peripheral Interface (SPI) or Transformer physical layer (TPL), of the IC. Note: Refer to the MC33771C data sheet for all specifications, except those in this document. 2 Features - 9.6 V ≤ VPWR ≤ 61.6 V operation, 75 V transient - 7 to 14 cells management - Isolated 2.0 Mbps differential munication or 4.0 Mbps SPI - Addressable on initialization - Bidirectional transceiver to support up to 63 nodes in daisy chain - Synchronized cell voltage/current measurement with coulomb count - Averaging of cell voltage measurements - Total stack voltage measurement - Seven GPIO/temperature sensor inputs - 5.0 V at 5.0 m A reference supply output - Automatic over/undervoltage and temperature detection routable to fault pin - Integrated sleep mode over/undervoltage and temperature monitoring - Onboard 300 m A 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 - Qualified in pliance with AECQ-100 3 Applications - Automotive: 48 V and high-voltage battery packs - E-bikes, e-scooters - Energy storage...