MC33772B

MC33772B Battery cell controller IC Rev. 6.0 — 2 April 2020 Short data sheet: technical data 1 General description The 33772 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 5.0 V ≤ VPWR ≤ 30 V operation, 40 V transient 3 to 6 cells management 0.8 mV total cell voltage measurement error Isolated 2.0 Mbps differential communication or 4.0 Mbps SPI Addressable on initialization Synchronized cell voltage/current measurement with coulomb count Total stack voltage measurement Seven GPIO/temperature sensor inputs 5.0 V reference supply output with 5 mA capability 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 co...