Top

Product details

Parameters

Number of series cells (Min) 6 Vin (Max) (V) 50 Number of series cells (Max) 10 Features Low side driver, Over-current in discharging protection, Short current detection Operating temperature range (C) -40 to 85 Rating Catalog open-in-new Find other Battery monitors & balancers

Package | Pins | Size

TSSOP (DBT) 30 34 mm² 7.8 x 4.4 open-in-new Find other Battery monitors & balancers

Features

  • AFE monitoring features
    • Pure digital interface
    • Internal ADC measures cell voltage, die temperature, and external thermistor
    • A separate, internal ADC measures pack current (coulomb counter)
    • Directly supports up to three thermistors (103AT)

  • Hardware protection features
    • Overcurrent in Discharge (OCD)
    • Short Circuit in Discharge (SCD)
    • Overvoltage (OV)
    • Undervoltage (UV)
    • Secondary protector fault detection
  • Additional features
    • Integrated cell balancing FETs
    • Charge, discharge low-side NCH FET drivers
    • Alert interrupt to host microcontroller
    • 2.5-V or 3.3-V output voltage regulator
    • No EEPROM programming necessary
    • High supply voltage absolute maximum (up to 108 V)
    • Simple I2C compatible interface (CRC option)
    • Random cell connection tolerant

All trademarks are the property of their respective owners.

open-in-new Find other Battery monitors & balancers

Description

The bq769x0 family of robust analog front-end (AFE) devices serves as part of a complete pack monitoring and protection solution for next-generation, high-power systems, such as light electric vehicles, power tools, and uninterruptible power supplies. The bq769x0 is designed with low power in mind: Sub-blocks within the IC may be enabled or disabled to control the overall chip current consumption, and a SHIP mode provides a simple way to put the pack into an ultra-low power state.

The bq76920 device supports up to 5-series cells or typical 18-V packs, the bq76930 handles up to 10-series cells or typical 36-V packs, and the bq76940 works for up to 15-series cells or typical 48-V packs. A variety of battery chemistries may be managed with these AFEs, including Lithium Ion, Lithium iron phosphate, and more. Through I2C, a host controller can use the bq769x0 to implement many battery pack management functions, such as monitoring (cell voltages, pack current, pack temperatures), protection (controlling charge/discharge FETs), and balancing. Integrated A/D converters enable a purely digital readout of critical system parameters, with calibration handled in TI’s manufacturing process.

open-in-new Find other Battery monitors & balancers
Download

Technical documentation

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Hardware development

EVALUATION BOARDS Download
document-generic User guide
$249.00
Description

The bq76930EVM is a populated circuit board for evaluation of the bq76930 analog front-end (AFE) along with the bq78350 Battery Management Controller that serves as part of a complete pack monitoring and protection solution for 6 to 10-series Lithium Ion, Lithium iron phosphate, and more battery (...)

Features
  • Bq7693000 AFE IC
  • Bq78350 Battery Management controller
  • FETs for current control
  • Test point patterns for easy evaluation

Software development

FIRMWARE Download
SLUC583.ZIP (12 KB)
SUPPORT SOFTWARE Download
SLUC539A.ZIP (2752 KB)

Reference designs

REFERENCE DESIGNS Download
10s Battery Pack Monitoring, Balancing, and Comprehensive Protection. 50A Discharge Reference Design
TIDA-00449 The TI Design TIDA-00449 is a ready, tested hardware platform for 10 cells in series Battery Pack Monitoring, Balancing and Protection for Power Tools. Power Tools increasingly uses highly power dense Li-Ion or Li-Iron Phosphate cells based battery packs that need to be protected from explosion due (...)
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
Industrial Battery Management Module for 20S Applications Reference Design
TIDA-01093 — High serial cell count battery (>15s) systems are becoming more and more common for industrial applications. These applications are cost sensitive and require a simple solution that includes monitoring, protection, and control or even SOC (State of Charge) information rather than only basic (...)
document-generic Schematic document-generic User guide

CAD/CAE symbols

Package Pins Download
TSSOP (DBT) 30 View options

Ordering & quality

Support & training

TI E2E™ forums with technical support from TI engineers

Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.

If you have questions about quality, packaging or ordering TI products, see TI support. ​​​​​​​​​​​​​​

Videos

Related videos