BQ78350DBTR-R1 by Texas Instruments | Battery Management | Avnet ASIA
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BQ78350DBTR-R1

Texas Instruments

Battery Management Controller/Fuel Gauge Li-Ion/Li-Pol/LiFePO4 5.5V 30-Pin TSSOP T/R

Manufacturer Part #: BQ78350DBTR-R1

Alternate Part #: BQ78350DBTR-R1


legend RoHS Compliant

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Information

The Texas Instruments bq78350 Li-Ion and LiFePO4 Battery Management Controller and companion to the bq769x0 family of Analog Front End (AFE) protection devices provides a comprehensive set of Battery Management System (BMS) subsystems, helping to accelerate product development for faster time-to-market.

The bq78350 controller and the bq769x0 AFE support from 3-series to 15-series cell applications. The bq78350 provides an accurate fuel gauge and state-of-health (SoH) monitor, as well as cell balancing and a full range of voltage-, current-, and temperature-based protection features.

The bq78350 offers optional LED or LCD display configurations for the capacity reporting. It also makes data available over its SMBus 1.1 interface. Battery history and diagnostic data is also kept within the device in non-volatile memory and is available over the same interface.

Key Features

  • Compensated End-of-Discharge Voltage (CEDV) Gauging Algorithm
  • Supports SMBus Host Communication
  • Flexible Configuration for 3- to 5-Series (bq76920), 6- to 10-Series (bq76930),
    and 9- to 15-Series (bq76940) Li-Ion and LiFePO4 Batteries
  • Supports Battery Configurations up to 320 Ahr
  • Supports Charge and Discharge Current Reporting up to 320 A
  • External NTC Thermistor Support from Companion AFE
  • Full Array of Programmable Protection Features
    • Voltage
    • Current
    • Temperature
    • System Components
  • Lifetime Data Logging
  • Supports CC-CV Charging, Including Precharge, Charge Inhibit, and
    Charge Suspend
  • Offers an Optional Resistor Programmable SMBus Slave Address for
    up to Eight Different Bus Addresses
  • Drives up to a 5-Segment LED or LCD Display for State-Of-Charge
    Indication
  • Provides SHA-1 Authentication
  • Technical Attributes

    Description
    Value
    Find similar Parts
    Mounting
    Surface Mount
    Max Processing Temp
    260
    Type
    Battery Charge Management Controller
    MSL Level
    2
    Battery Type
    Li-Ion|LiFePO4
    Operating Temperature
    -40 to 85 °C
    Output Voltage
    5.5 V
    Pin Count
    30
    Operating Supply Voltage
    2.4 to 2.6 V
    Supplier Package
    TSSOP
    Product Dimensions
    7.8 x 4.5(Max) x 1.05(Max)
    Lead Finish
    Gold Over Nickel Palladium
    Screening Level
    Industrial

    ECCN / UNSPSC

    Description
    Value
    ECCN:
    EAR99
    SCHEDULE B:
    8542390000
    HTSN:
    8542390000
    UNSPSC:
    32101600
    UNSPSC VERSION:
    V15.1101
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