Product
0
BQ34210-Q1
  • BQ34210-Q1
  • BQ34210-Q1

BQ34210-Q1

ACTIVE

Automotive Qualified Single cell system-side CEDV fuel gauge

Texas Instruments BQ34210-Q1 Product Info

1 April 2026 3

Parameters

Cell chemistry

Li-Ion/Li-Polymer

Number of series cells

Single Cell

Communication interface

I2C

Battery capacity (min) (mAh)

100

Battery capacity (max) (mAh)

14000

Implementation

System

External capacity indication

None

Features

CEDV algorithm, End of Service

Operating temperature range (°C)

-40 to 85

Rating

Automotive

Package

TSSOP (PW)-14-32 mm² 5 x 6.4

Features

  • Automotive-Qualified AEC-Q100, Grade 3
  • 1-Series Cell Battery Fuel Gauge Supports Li-Ion, LiFePO4, and NiMH (3-Cell) Chemistries
    • Resides on System Board
    • Powers Directly from the Battery with Integrated LDO
    • Supports a Low-Value External Sense Resistor (10 mΩ)
  • Learning Load Enable (LEN) from Host
  • Ultra-Low Power Consumption in NORMAL (50 µA) and SLEEP (9 µA) Modes
  • Supports Replacement Batteries
  • Accurate End-of-Service (EOS) Determination for Batteries in Rarely Discharged Applications
  • CEDV Gas Gauge for 1-Series Cell Batteries, Providing:
    • State-of-Charge (SOC)
    • Time-to-Empty (TTE)
    • State-of-Health (SOH)
  • High-Side and Low-Side Current Sensing Options
  • Internal Temperature Sensor OR External Thermistor
  • Microcontroller Peripheral Interface Supports:
    • 400-kHz I2C™ Serial Interface
    • Configurable Interrupt (ALERT) for SOC, Battery Levels, Temperature Faults, and Charge/Discharge Status
  • Automotive-Qualified AEC-Q100, Grade 3
  • 1-Series Cell Battery Fuel Gauge Supports Li-Ion, LiFePO4, and NiMH (3-Cell) Chemistries
    • Resides on System Board
    • Powers Directly from the Battery with Integrated LDO
    • Supports a Low-Value External Sense Resistor (10 mΩ)
  • Learning Load Enable (LEN) from Host
  • Ultra-Low Power Consumption in NORMAL (50 µA) and SLEEP (9 µA) Modes
  • Supports Replacement Batteries
  • Accurate End-of-Service (EOS) Determination for Batteries in Rarely Discharged Applications
  • CEDV Gas Gauge for 1-Series Cell Batteries, Providing:
    • State-of-Charge (SOC)
    • Time-to-Empty (TTE)
    • State-of-Health (SOH)
  • High-Side and Low-Side Current Sensing Options
  • Internal Temperature Sensor OR External Thermistor
  • Microcontroller Peripheral Interface Supports:
    • 400-kHz I2C™ Serial Interface
    • Configurable Interrupt (ALERT) for SOC, Battery Levels, Temperature Faults, and Charge/Discharge Status

Description

The bq34210-Q1 1-Series Cell System-Side CEDV Fuel Gauge provides fuel gauging and End-of-Service (EOS) Determination for 1-series cell batteries in applications that encounter infrequent discharge, such as eCall systems and uninterruptible power supplies (UPS) for backup during power failures, where batteries may stay connected to a charging power source most of their lifetime until needed. The bq34210-Q1 fuel gauge supports multiple battery chemistries, including Li-Ion, LiFePO4, and NiMH.

The gas gauging function uses voltage, current, and temperature data along with Compensated End-of-Discharge (CEDV) technology to provide State-of-Charge (SOC) and State-of-Health (SOH) data. The device’s EOS Determination function alerts when battery capability has degraded and is approaching the end of its usable service.

Battery fuel gauging with the bq34210-Q1 fuel gauge requires connections only to PACK+ (P+) and PACK– (P–) for a removable battery pack or embedded battery management system.

Subscribe to Welllinkchips !
Your Name
* Email
Popular Posts
Featured Parts More >
Submit a request
CONTACT US
Company address

WELL LINK CHIPS GROUP CO.,LIMITED FLAT/RM 1802 BEVERLY HOUSE 93-107 LOCKHART ROAD WANCHAI HK

Send Enquiry
SEND e-MAIL
Office hour from 9am to 6pm ,
Monday through Friday, UTC/GMT +8