BQ34210-Q1 Texas instruments

BQ34210-Q1

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BQ34210-Q1

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Описание

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 devices 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.

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

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