BQ78350DBTR-R1

1 Features

• Compensated End-of-Discharge Voltage (CEDV) Gauging Algorithm

• Supports SMBus Host Communication

• Flexible Configuration for 3- to 5-Series (bq76920), 6- to 10-Series (bq76930), and 9- to 15-Series (bq76940) Li-Ion and LiFePO4 Batteries

• Supports Battery Configurations up to 320 Ahr

• Supports Charge and Discharge Current Reporting up to 320 A • On-Chip Temperature Sensor Option

• External NTC Thermistor Support from Companion AFE

• Full Array of Programmable Protection Features

– Voltage

– Current

– Temperature

– System Components

• Lifetime Data Logging

• Supports CC-CV Charging, Including Precharge, Charge Inhibit, and Charge Suspend

• Offers an Optional Resistor Programmable SMBus Slave Address for up to Eight Different Bus Addresses

• Drives up to a 5-Segment LED or LCD Display for State-Of-Charge Indication

• Provides SHA-1 Authentication

2 Applications

• Light Electric Vehicles (LEVs): eBikes, eScooters, Pedelec, and Pedal-Assist Bicycles

• Power and Gardening Tools

• Battery Backup and Uninterruptible Power Supply (UPS) Systems

• Wireless Base Station Backup Systems

• Telecom Power Systems

3 Description

The Texas Instruments bq78350-R1 Li-Ion and LiFePO4 Battery Management Controller and companion to the bq769x0 family of Analog Front End (AFE) protection devices provides a comprehensive set of Battery Management System (BMS) subsystems, helping to accelerate product development for faster time-to-market.

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