MC33771B_SDS - NXP

MC33771B_SDS Battery cell controller

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.

Features

• 9.6 V ≤ VPWR ≤ 63 V operation, 75 V transient
• 7 to 14 cells management
• Isolated 2.0 Mbps differential communication or 4.0 Mbps SPI
• Addressable on initialization
• 0.8 mV 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 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 diagnos.