1-Series, 2-Series, 3-Series, and 4-Series Li-Ion Battery  - BQ40Z50-R2

BQ40Z50-R2 (ACTIVE)

1-Series, 2-Series, 3-Series, and 4-Series Li-Ion Battery

 

Description

The bq40z50-R2 device, incorporating patented Impedance Track™ technology, is a fully integrated, single-chip, pack-based solution that provides a rich array of features for gas gauging, protection, and authentication for 1-series, 2-series, 3-series, and 4-series cell Li-Ion and Li-Polymer battery packs.

Using its integrated high-performance analog peripherals, the bq40z50-R2 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 bq40z50-R2 device supports TURBO Mode 2.0 by providing the available max power and max current to the host system. The device also supports Battery Trip Point to send a BTP interrupt signal to the host system at the preset state of charge thresholds.

The bq40z50-R2 provides software-based 1st- and 2nd-level safety protection against overvoltage, undervoltage, overcurrent, short-circuit current, overload, and overtemperature conditions, as well as other pack- and cell-related faults.

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

The compact 32-lead QFN package minimizes solution cost and size for smart batteries while providing maximum functionality and safety for battery gauging applications.

Features

  • Fully Integrated 1-Series, 2-Series, 3-Series, and 4-Series Li-Ion or Li-Polymer Cell Battery Pack Manager and Protection
  • Next-Generation Patented Impedance Track™ Technology Accurately Measures Available Charge in Li-Ion and Li-Polymer Batteries
  • High Side N-CH Protection FET Drive
  • Integrated Cell Balancing While Charging or At Rest
  • Suitable for Batteries Between 100 mAh and 29 Ah
  • Full Array of Programmable Protection Features
    • Voltage
    • Current
    • Temperature
    • Charge Timeout
    • CHG/DSG FETs
    • AFE
  • Sophisticated Charge Algorithms
    • JEITA
    • Enhanced Charging
    • Adaptive Charging
    • Cell Balancing
  • Supports TURBO Mode 2.0
  • Supports Battery Trip Point (BTP)
  • Diagnostic Lifetime Data Monitor and Black Box Recorder
  • LED Display
  • Supports Two-Wire SMBus v1.1 Interface
  • SHA-1 Authentication
  • IATA Support
  • Compact Package: 32-Lead QFN (RSM)

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Parametrics Compare all products in Battery Fuel Gauge

 
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)
Pin/Package
BQ40Z50-R2 BQ28Z610 BQ4050 BQ40Z60
2-4 Cells
Single Cell   
1-2 Cells    2-4 Cells
Single Cell   
2-4 Cells   
Li-Ion/Li-Polymer
LiFePO4   
Li-Ion/Li-Polymer    Li-Ion/Li-Polymer
LiFePO4   
Li-Ion/Li-Polymer
LiFePO4   
29000    14000    29000    29000   
SMBus    I2C    SMBus    SMBus   
500    100    500    100   
LED    None    LED    LED   
Pack    Pack    Pack    Pack
System   
IT (High accuracy)    IT (High accuracy)    CEDV    IT (High accuracy)   
External
Internal   
External
Internal   
External
Internal   
External
Internal   
Integrated Protector
SHA-1 Authentication
Turbo Mode   
Battery Management Unit
Cell Balancing
Integrated Protector
SHA-1 Authentication   
Cell Balancing
Integrated Protector
SHA-1 Authentication   
Battery Management Unit
Cell Balancing
Integrated Protector
SHA-1 Authentication
Turbo Mode   
-40 to 85    -40 to 85    -40 to 85    -40 to 85   
32VQFN    12SON    32VQFN    32VQFN   
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