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MC33772B

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MC33772B 数据手册

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 ≤ V_PWR≤ 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 compatible with the MC33771 for a maximum of 14 cells

• Qualified in compliance with AEC-Q100

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