1 Features
1• 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, and 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
• Handheld Vacuum Cleaners and Robot Vacuums

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.
The bq78350-R1 controller and the bq769x0 AFE
support 3-series to 15-series cell applications. The
bq78350-R1 device provides an accurate fuel gauge
and state-of-health (SoH) monitor, as well as cell
balancing and a full range of voltage-, current-, and
temperature-based protection features.