MC33772CTC1AE

The MC33772C 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 isolated daisy chain communication interface [also referred as transformer
physical layer (TPL)] which supports both capacitive and inductive isolation between
nodes of the IC. The product is AEC-Q100 qualified and operates up to 125 °C ambient
temperature.

Category: Power Management (PMIC)

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SPECIFICATION

• 5.0 V ≤ VPWR ≤ 30 V operation, 40 V transient
• 3 to 6 cells management
• Isolated 2.0 Mbit/s differential communication or 4.0 Mbit/s SPI
• Addressable on initialization
• Bi-directional transceiver to support up to 63 nodes in daisy chain
• 0.8 mV total voltage measurement error
• 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 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 leakage
• Designed to support ISO 26262, up to ASIL D safety system
• Fully compatible with the MC33771C and the MC33664
• Qualified in compliance with AEC-Q100