Texas Instruments bq78350-R1, Technical Reference

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10 SLUUBD3D – September 2015 – Revised September 2018
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Copyright © 2015–2018, Texas Instruments Incorporated
Introduction
Chapter 1
SLUUBD3D – September 2015 – Revised September 2018
Introduction
The bq78350-R1 device provides a feature-rich battery management solution for 3-series cell to 15-series
cell battery pack applications. The device has extended capabilities, including:
• Companion Protection Controller to the bq76920, bq76930, and bq76940 AFE Devices for Li-Ion or
LiFePO4 Battery Packs
• Compensated End-of-Discharge Voltage (CEDV) Gas Gauging Algorithm Accurately Measures
Available Charge and State-of-Health
• Voltage Based Cell Balancing Control
• Normal and Lower Power Modes
– NORMAL
– SLEEP
– SHUTDOWN
• Full Array of Programmable Protection Features
– Voltage
– Current
– Temperature
– Charge Timeout
– CHG/DSG FETs
• Precharge and Fast Charge Algorithm
• Diagnostic Lifetime Data Monitor
• Black Box Event Recorder
• Supports Two-Wire SMBus v1.1 Interface
• SHA-1 Authentication
• Package: 30-Lead TSSOP
The bq78350-R1 is intended to be used with the bq769x0 Battery Monitor with a 2.5-V REGOUT
configuration and I
2
C Address 0x08. However, the bq78350-R1 can use a bq769x0 with or without the
communications CRC enabled (the bq78350-R1 automatically detects if CRC is enabled).