BQ40Z50-R1 1-4 Series Li-Ion Battery Pack Manager, Battery Fuel (Gas) Gauge | TI.com

BQ40Z50-R1 (ACTIVE)

1-4 Series Li-Ion Battery Pack Manager, Battery Fuel (Gas) Gauge

1-4 Series Li-Ion Battery Pack Manager, Battery Fuel (Gas) Gauge - BQ40Z50-R1
 

Special note

bq40z50-R1 is the next generation 1s-4s gauge with TI's most advanced Impedance Track (IT) algorithm with convergent smoothing enabled and supports Intel Turbo mode.

Description

The bq40z50-R1 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-R1 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-R1 device supports TURBO BOOST mode 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 pre-set state of charge thresholds.

The bq40z50-R1 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
  • 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 BOOST Mode
  • 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
  • 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-R1 BQ27542-G1 BQ28Z610 BQ4050 BQ78350-R1 BQ78Z100
2-4 Cells
Single Cell    
Single Cell     1-2 Cells     2-4 Cells
Single Cell    
>4 Cells     1-2 Cells    
Li-Ion/Li-Polymer
LiFePO4    
Li-Ion/Li-Polymer     Li-Ion/Li-Polymer     Li-Ion/Li-Polymer
LiFePO4    
Li-Ion/Li-Polymer
LiFePO4    
Li-Ion/Li-Polymer    
29000     32000     14000     29000     320000     14000    
SMBus     HDQ
I2C    
I2C     SMBus     I2C
SMBus    
HDQ    
100     100     100     500     100     100    
LED     None     None     LED     LCD
LED
SOC    
None    
Pack     Pack     Pack     Pack     Pack     Pack    
Impedance Track     Impedance Track     Impedance Track     CEDV     CEDV     Impedance Track    
External
Internal    
N/A     External
Internal    
External
Internal    
External
Internal    
External
Internal    
Cell Balancing
Integrated Protector
SHA-1 Authentication
Turbo Mode    
SHA-1 Authentication     Battery Management Unit
Cell Balancing
Integrated Protector
SHA-1 Authentication    
Cell Balancing
Integrated Protector
SHA-1 Authentication    
Cell Balancing
Integrated Protector
SHA-1 Authentication    
Cell Balancing
Integrated Protector
SHA-1 Authentication    
-40 to 85     -40 to 85     -40 to 85     -40 to 85     -40 to 85     -40 to 85    
32VQFN     12SON     12SON     32VQFN     30TSSOP     12SON