BQ34210-Q1

通过汽车级认证的单节电池系统侧 CEDV 电量监测计 14-TSSOP -40 to 85

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.

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Automotive-Qualified AEC-Q100, Grade 3

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1-Series Cell Battery Fuel Gauge Supports Li-Ion, LiFePO4, and NiMH 3-Cell Chemistries

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Resides on System Board

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Powers Directly from the Battery with Integrated LDO

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Supports a Low-Value External Sense Resistor 10 mΩ

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Learning Load Enable LEN from Host

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Ultra-Low Power Consumption in NORMAL 50 µA and SLEEP 9 µA Modes

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Supports Replacement Batteries

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Accurate End-of-Service EOS Determination for Batteries in Rarely Discharged Applications

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CEDV Gas Gauge for 1-Series Cell Batteries, Providing:

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State-of-Charge SOC

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Time-to-Empty TTE

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State-of-Health SOH

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High-Side and Low-Side Current Sensing Options

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Internal Temperature Sensor OR External Thermistor

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Microcontroller Peripheral Interface Supports:

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400-kHz I2C™ Serial Interface

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Configurable Interrupt ALERT for SOC, Battery Levels, Temperature Faults, and Charge/Discharge Status

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