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

BQ40Z50-R1
This product has been released to the market and is available for purchase. For some products, newer alternatives may be available.
1-4 Series Li-Ion Battery Pack Manager, Battery Fuel (Gas) Gauge

 

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)

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)
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)    
BQ28Z610 Order now 1-2 Cells     Li-Ion/Li-Polymer     14000     I2C     100     None     Pack     Impedance Track     External
Internal    
Battery Management Unit     -40 to 85     SON | 12     12SON: 10 mm2: 2.5 x 4 (SON | 12)    
BQ3050 Samples not available 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)    
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)    
BQ78Z100 Order now 1-2 Cells     Li-Ion/Li-Polymer     14000     HDQ     100