Texas Instruments bq35100 User Manual

7
SLUUBH1C–August 2016–Revised March 2018
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Copyright © 2016–2018, Texas Instruments Incorporated
Introduction
Chapter 1
SLUUBH1C–August 2016–Revised March 2018
Introduction
The bq35100 Battery Fuel Gauge and End-Of-Service Monitor provides highly configurable fuel gauging
for non-rechargeable lithium primary batteries—without requiring forced discharge of the battery. Built so
that optimization is not necessary, the patented TI gauging algorithms support replaceable batteries and
enable accurate results with ultra-low average power consumption through host control via the GAUGE
ENABLE (GE) pin.
The fuel gauging functions use voltage, current, and temperature information to provide State-Of-Health
(SOH) and End-Of-Service (EOS) data. The bq35100 device is only required to be powered long enough
to gather data and to make calculations to support the selected algorithm and the frequency of updates
required by the system.
The host can read the gathered data through a 400-kHz I
2
C bus. An ALERT output is also available to
interrupt the host, based on a variety of configurable options.
The device has extended capabilities, including:
• Fuel Gauge for Single- and Multi-Cell Primary (Non-Rechargeable) Batteries
• Supports Lithium Thionyl Chloride (LiSOCl
2
) and Lithium Manganese Dioxide (LiMnO
2
)
• Provides Four Configurable Algorithm Options:
– Coulomb Accumulation (ACC)
– State-Of-Health (SOH)
– End-Of-Service (EOS)
• Ultra-Low Average Power Consumption Supported Through Gauge-Enable Control
• Accurate Coulomb Counter, Voltage, and Temperature Measurement Options
• I
2
C Host Communication, Providing Battery Parameter and Status Access
• Configurable Host Interrupt
• Data Logging Options
• SHA-1 Authentication

Texas Instruments bq35100 Specifications

General

Brand	Texas Instruments
Model	bq35100
Category	Control Unit
Language	English