Texas Instruments bq78350-R1 User Manual

1
SLUUBM6–March 2018
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bq78350-R1 TRM Addendum for the bq78350-R2 Device
Preface
SLUUBM6–March 2018
bq78350-R1 TRM Addendum for the bq78350-R2 Device
This document is an addendum to the bq78350-R1 Technical Reference Manual (TRM, SLUUBD3) and
discusses modifications relating to the bq78350-R2 device. Items not discussed in this addendum have
not changed.
Notational Conventions
Information Type Formatting Convention Example
Commands Italics with parentheses and no breaking spaces RemainingCapacity() command
Data Flash (DF) Italics, bold, and breaking spaces Design Capacity data
Register bits and flags Brackets and italics [TDA] bit
Data flash bits Brackets, italics, and bold [LED1] bit
Modes and states ALL CAPITALS UNSEALED mode
Related Documentation from Texas Instruments
The following is related documentation:
1. bq78350-R1 Technical Reference Manual (SLUUBD3)
2. bq78350-R1 CEDV Li-Ion Gas Gauge and Battery Management Controller Companion to the bq769x0
Battery Monitoring AFE Data Sheet (SLUSCD0)
3. bq78350 Data Memory Programming for Mass Production Application Report (SLUA742)
Trademarks
All trademarks are the property of their respective owners.
Glossary
TI Glossary —This glossary lists and explains terms, acronyms, and definitions.

Texas Instruments bq78350-R1 Specifications

General

Operating Voltage Range	2.5V to 4.5V
Cell Voltage Measurement	Yes
Current Measurement	Yes
EEPROM	Yes
Device Type	Battery Management
Function	Battery monitoring and protection
Battery Chemistry	Li-Ion
Operating Temperature Range	-40°C to 85°C
Communication Interface	I2C
Protection Features	Overvoltage, Undervoltage, Overcurrent
Features	Impedance Track™ Technology

Summary

Added Features

PRE-DISCHARGE Mode

Details the new PRE-DISCHARGE functionality using the GPIO_B pin for pre-discharge control.

JEITA Charge Control and Temperature Ranges

Introduces JEITA charge control and modified temperature range settings.

Charging Parameter Updates

Covers updated Voltage and Current parameters for Low, Standard, High, and Recommended Temp Charging.

Pre-Charging and Maintenance Charging Settings

Details updates to Pre-Charging, Maintenance Charging, and Voltage Range settings.

Changed and Removed Features

IPScale Feature Optimization

Describes the optimization of the IPScale feature from the previous device version.

Static DF Checksum Fix

Addresses an issue with Static DF Checksum calculation across different devices.

LPEN Functionality Modification

Modifies LPEN functionality with a new data flash control bit [DIS_AFE_TIME_RECOV].