MC33771B_SDS Datasheet | NXP Semiconductors

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 ≤ VPWR ≤ 63 V operation, 75 V transient - 7 to 14 cells management - Isolated 2.0 Mbps differential munication or 4.0 Mbps SPI - Addressable on initialization - 0.8 m V 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 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 - Fully patible with the MC33772 for a maximum of six cells - Qualified in pliance with AEC- Q100 NXP Semiconductors Battery cell controller IC 3 Simplified application diagram 14 cell voltage measure current measure VPWR1 VPWR2 CT14 CB14 + CB14:13_C CT13 CTn CBn CT1 CB2:1_C + CB1 CTREF battery reference GNDREF GNDFLG ISENSE+ ISENSE- MC33771 RDTX_OUT+ RDTX_OUTV CGND VANA AGND DGND battery reference battery reference FAULT SDA SCL SPI__EN FAULT EEPROM...