BQ3050 SBS 1.1-Compliant 2S to 4S Battery Gas Gauge & Protection | TI.com

BQ3050
This product has been released to the market and is available for purchase. For some products, newer alternatives may be available.
SBS 1.1-Compliant 2S to 4S Battery Gas Gauge & Protection

 

Description

The Texas Instruments bq3050 Compensated End-of-Discharge Voltage (CEDV) Gas Gauge and Battery Pack Manager is a single-chip solution that provides a rich array of features for protection, authentication, and data gathering for 2-series, 3-series, and 4-series cell Li-Ion and Li-Polymer battery packs.

Using its integrated high-performance analog peripherals, the bq3050 device measures and maintains an accurate record of available capacity, voltage, current, temperature, and other critical parameters in Li-Ion or Li-Polymer batteries, and reports this information to the system host controller over an SMBus v1.1 compatible interface.

The bq3050 provides software-based 1st-level and 2nd-level safety protection for overvoltage, undervoltage, overtemperature, and overcharge conditions, as well as hardware-based protection for overcurrent in discharge and short circuit in charge and discharge conditions.

SHA-1 authentication with secure memory for authentication keys enables identification of genuine battery packs beyond any doubt.

The compact 38-lead TSSOP package minimizes solution cost and size for smart batteries while providing maximum functionality and safety for battery gauging applications.

Features

  • Fully Integrated 2-Series, 3-Series, and 4-Series
    Li-Ion or Li-Polymer Cell Battery Pack Manager
    and Protection
  • Advanced Compensated End-of-Discharge
    Voltage (CEDV) Gauging
  • High Side N-CH Protection FET Drive
  • Integrated Pre-Charge FET
  • Integrated Cell Balancing
  • Low Power Modes
    • Low Power: < 180 µA
    • Sleep < 76 µA
  • Full Array of Programmable Protection Features
    • Voltage
    • Current
    • Temperature
  • Sophisticated Charge Algorithms
    • JEITA
    • Enhanced Charging
    • Adaptive Charging
  • Supports Two-Wire SMBus v1.1 Interface
  • SHA-1 Authentication
  • Compact Package: 38-Lead TSSOP

Parametrics

Compare all products in Battery fuel gauges Email Download to Excel
Part number Order Number of series cells Cell chemistry Battery capacity (Max) (mAh) Communication interface Battery capacity (Min) (mAh) External capacity indication Implementation Gas gauge algorithm Cell balancing Features Operating temperature range (C) Package Group Package size: mm2:W x L (PKG)
BQ3050 Order now 2-4 Cells     Li-Ion/Li-Polymer     32000     SMBus     500     LED     Pack     CEDV       Integrated Protector
SHA-1 Authentication    
-40 to 85     TSSOP | 38     38TSSOP: 62 mm2: 6.4 x 9.7 (TSSOP | 38)    
BQ3055 Samples not available 2-4 Cells     Li-Ion/Li-Polymer     32000     SMBus     500     None     Pack     CEDV       Integrated Protector
SHA-1 Authentication    
-40 to 85     TSSOP | 30     30TSSOP: 50 mm2: 6.4 x 7.8 (TSSOP | 30)    
BQ3060 Samples not available 2-4 Cells     Li-Ion/Li-Polymer     32000     SMBus     500       Pack     CEDV     External     Integrated Protector
SHA-1 Authentication    
-40 to 85     TSSOP | 24     24TSSOP: 34 mm2: 4.4 x 7.8 (TSSOP | 24)    
BQ4050 Order now 2-4 Cells
Single Cell    
Li-Ion/Li-Polymer
LiFePO4    
29000     SMBus     500     LED     Pack     CEDV     External
Internal    
CEDV     -40 to 85     VQFN | 32     32VQFN: 16 mm2: 4 x 4 (VQFN | 32)    
BQ40Z50-R1 Order now 2-4 Cells
Single Cell    
Li-Ion/Li-Polymer
LiFePO4    
29000     SMBus     100     LED     Pack     Impedance Track     External
Internal    
Cell Balancing
Integrated Protector
SHA-1 Authentication
Turbo Mode    
-40 to 85     VQFN | 32     32VQFN: 16 mm2: 4 x 4 (VQFN | 32)    
BQ40Z60 Samples not available 2-4 Cells     Li-Ion/Li-Polymer
LiFePO4    
29000     SMBus     100     LED     Pack
System    
Impedance Track     External
Internal    
Battery Management Unit
Cell Balancing
Integrated Protector
SHA-1 Authentication
Turbo Mode    
-40 to 85     VQFN | 32     32VQFN: 25 mm2: 5 x 5 (VQFN | 32)