# BQ34210IPWRQ1 (Component) ## Description Battery Power Management IC Multi-Chemistry 14-TSSOP 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-ofDischarge (CEDV) technology to provide State-ofCharge (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. Features 1• 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 I 2C™ Serial Interface – Configurable Interrupt (ALERT) for SOC, Battery Levels, Temperature Faults, and Charge/Discharge Status 2 Applications • eCall Systems • Telematics Backup Systems • Uninterruptible Power Supply (UPS) Backup Systems • Emergency Battery Power Modules #BatteryFuelGauge #BatteryManagement #FuelGaugeIC #AutomotiveElectronics #TexasInstruments #LiIonBattery #LiFePO4 #I2C #PowerManagement #AECQ100 #BackupBattery #UPS #EmbeddedSystems ## Component Details - **Owner:** silicon-yard - **Created:** 6/29/2026 - **Last Updated:** 6/29/2026 - **Visibility:** Public - **Manufacturer Part Number:** BQ34210IPWRQ1 - **License:** https://creativecommons.org/licenses/by/4.0/ - **Package or Case Code:** 14-TSSOP (0.173", 4.40mm Width) - **Symbol Style:** parametric-v1 - **Datasheet URL:** https://storage.googleapis.com/graviton-electric-symbols/document_assets/user-uploaded/5cfa632144dc173dacb0d49bab531304e5c29826eb5534fa250b32d2ab703ea6.pdf - **Manufacturer Name:** Texas Instruments - **Part Type:** Integrated Circuit ## Distributor Pricing (qty 1) *Pricing shown for quantity 1. For price breaks and other quantities, open in Flux.* | Distributor | Unit Price (qty 1) | Stock | |------------|--------------------|-------| | [Arrow](https://www.arrow.com/en/products/bq34210ipwrq1/texas-instruments.html?utm_currency=USD&region=nac) | N/A | N/A | | [Mouser](https://www.mouser.com/ProductDetail/Texas-Instruments/BQ34210IPWRQ1?qs=BZBei1rCqCBkUscHi4Re%2Fg%3D%3D) | $2.46 | 1.3K | - **Part Type:** Integrated Circuits - **Sub-Type:** Logic - **Manufacturer:** Texas Instruments - **MPN:** BQ34210IPWRQ1 - **Package / Case Code:** 14-TSSOP - **Pin Count:** 14 - **Logic Function:** AND - **Compliance:** AEC-Q100 ## Pins | Pin | Name | Type | |-----|------|------| | 1 | SDA | | | 2 | SCL | | | 3 | VSS | | | 4 | NC_1 | | | 5 | REG18 | | | 6 | NC_2 | | | 7 | REGIN | | | 8 | NC_3 | | | 9 | SRN | | | 10 | SRP | | | 11 | NC_4 | | | 12 | TS | | | 13 | NC_5 | | | 14 | ALERT | | --- *Generated from [https://www.flux.ai/silicon-yard/bq34210ipwrq1](https://www.flux.ai/silicon-yard/bq34210ipwrq1)*