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BQ35100PW The Texas Instruments BQ35100PW is a battery fuel gauge IC designed for non-rechargeable primary lithium batteries. It offers accurate measurements and diagnostics for battery health and service life.
Mfr Part #:

BQ35100PW

Available from 2 distributors
Mfr Name: Texas Instruments
Texas Instruments
The Texas Instruments BQ35100PW is a battery fuel gauge IC designed for non-rechargeable primary lithium batteries. It offers accurate measurements and diagnostics for battery health and service life.
✓ Total Stock: 102,511 pcs
$ Price Range: $1.89

BQ35100PW Available from 2 distributors

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Unit Electronics Co.,Limited ✓
Non-Authorised Inventory information
82,511 pcs
On Request
82511 pcs On Request 1 On Request On Request On Request On Request On Request
Romaks Technologies ✓
Non-Authorised Inventory information
20,000 pcs
On Request
20000 pcs On Request 1 On Request On Request On Request On Request On Request
DistyParts aggregates offers from multiple distributors. Final prices, lead times and terms are subject to the distributors' discretion and may change without prior notice. DistyParts is not liable for any discrepancies.

BQ35100PW Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Battery Chemistry
Function
Halogen Free
Interface
Mounting Type
Operating Temperature
SVHC Present
Supplier Device Package
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BQ35100PW Description

Short technical summary and product information.

The BQ35100PW from Texas Instruments is an active battery fuel gauge IC specifically designed for non-rechargeable primary lithium batteries, including lithium thionyl chloride (Li-SOCl2) and lithium manganese dioxide (Li-MnO2) chemistries. It provides essential battery diagnostics, predicting end-of-service or early battery failure, making it suitable for applications like flow meters.

 

This IC accurately measures voltage, temperature, current, and accumulates coulomb counts to report battery health and service life. It features a State-of-Health (SOH) algorithm for Li-MnO2 and an End-of-Service (EOS) algorithm for Li-SOCl2. The device operates with ultra-low average power consumption, maximizing battery run time, with specific low power modes for SOH, EOS, and Coulomb accumulation diagnostics.

 

Communication is handled via an I2C interface, providing access to battery parameters and status. The BQ35100PW supports SHA-1 authentication to help prevent counterfeit battery use. It is housed in a 14-TSSOP package and is designed for surface mount applications, operating within a temperature range of -40°C to 85°C.

BQ35100PW Quick Information

Product Type: Battery Fuel Gauge IC
Canonical Name: BQ35100PW Battery Fuel Gauge IC
Subcategory: Battery Management ICs

BQ35100PW Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected
Lead Free: Yes

BQ35100PW Estimated Pricing

Qty Low High
1+ $1.89 $1.89

Estimated market price range - modelled values for guidance only, not live distributor offers.

BQ35100PW Features

  • Fuel gauge for primary lithium batteries.
  • Predicts end-of-service or early failure.
  • Accurate voltage, temperature, and current measurements.
  • I2C host communication interface.
  • Ultra-low average power consumption.

BQ35100PW Applications

  • Ideal for flow meter applications.
  • Supports Li-SOCl2 and Li-MnO2 chemistries.
  • Provides battery health and service life data.
  • Helps prevent counterfeit battery usage.

BQ35100PW FAQs

5 frequently asked questions generated from this part’s specifications.
What is the operating temperature range for the BQ35100PW?

The operating temperature range is -40°C to 85°C.

What battery chemistries does the BQ35100PW support?

It supports Primary Lithium cell chemistries, specifically lithium thionyl chloride (Li-SOCl2) and lithium manganese dioxide (Li-MnO2).

What is the communication interface for the BQ35100PW?

The communication interface is I2C.

What is the minimum and maximum battery capacity supported?

The supported battery capacity ranges from 100mAh to 32000mAh.

What is the average power consumption for SOH diagnostics?

The average power consumption for State-of-Health (SOH) diagnostics is approximately 0.06μA.

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