Product details

Rating Catalog Number of series cells (max) 7 Number of series cells (min) 2 Features FET drive, Low-side driver, Open wire (OW), Over-temperature (OT), Overcurrent during charge (OCC), Overcurrent during discharge (OCD), Overvoltage, Short-circuit Discharge (SCD), Under-temperature (UT), Undervoltage Function Protection Operating current (typ) (μA) 6 Vin (max) (V) 38.5 Operating temperature range (°C) -40 to 110 Battery overvoltage protection (min) (V) 0 Battery overvoltage protection (max) (V) 5.5
Rating Catalog Number of series cells (max) 7 Number of series cells (min) 2 Features FET drive, Low-side driver, Open wire (OW), Over-temperature (OT), Overcurrent during charge (OCC), Overcurrent during discharge (OCD), Overvoltage, Short-circuit Discharge (SCD), Under-temperature (UT), Undervoltage Function Protection Operating current (typ) (μA) 6 Vin (max) (V) 38.5 Operating temperature range (°C) -40 to 110 Battery overvoltage protection (min) (V) 0 Battery overvoltage protection (max) (V) 5.5
VQFN (RGR) 20 12.25 mm2 3.5 x 3.5
  • Primary or secondary voltage, current, and temperature protection for 2-series to 7-series cells with an autonomous recovery option
  • Voltage protection:
    • Cell overvoltage (COV): 0 V–5.5 V in 1-mV steps, ±4-mV accuracy
    • Cell undervoltage (CUV): 0 V–5.5 V in 1-mV steps, ±4-mV accuracy
  • Current protection:
    • Short circuit in discharge (SCD): 10 mV–500 mV, varying steps
    • Overcurrent in charge (OCC): 3 mV–123 mV, 2-mV steps
    • Overcurrent in discharge 1 and 2 (OCD1 and OCD2): 4 mV–200 mV, 2-mV steps
  • Temperature protection using external NTC thermistor:
    • Overtemperature in charge and discharge (OTC and OTD)
    • Undertemperature in charge and discharge (UTC and UTD)
    • Internal die overtemperature
  • Integrated low-side drivers for NFET protection with an optional autonomous recovery
  • Low power operation:
    • NORMAL mode, both FETs enabled: 8 μA
    • NORMAL mode, FETs disabled: 5 μA
    • SHUTDOWN Mode: < 1 μA
  • High voltage tolerance of 45 V on cell connect and select additional pins
  • Integrated one-time-programmable (OTP) memory for device settings, programmed by TI
  • Programmable interrupt for host processor, status information available through I 2C
  • 400-kHz I 2C serial communications with optional CRC support
  • Programmable LDO for external system usage
  • 20-pin QFN 3.5 mm × 3.5 mm × 0.9 mm (RGR) package
  • Primary or secondary voltage, current, and temperature protection for 2-series to 7-series cells with an autonomous recovery option
  • Voltage protection:
    • Cell overvoltage (COV): 0 V–5.5 V in 1-mV steps, ±4-mV accuracy
    • Cell undervoltage (CUV): 0 V–5.5 V in 1-mV steps, ±4-mV accuracy
  • Current protection:
    • Short circuit in discharge (SCD): 10 mV–500 mV, varying steps
    • Overcurrent in charge (OCC): 3 mV–123 mV, 2-mV steps
    • Overcurrent in discharge 1 and 2 (OCD1 and OCD2): 4 mV–200 mV, 2-mV steps
  • Temperature protection using external NTC thermistor:
    • Overtemperature in charge and discharge (OTC and OTD)
    • Undertemperature in charge and discharge (UTC and UTD)
    • Internal die overtemperature
  • Integrated low-side drivers for NFET protection with an optional autonomous recovery
  • Low power operation:
    • NORMAL mode, both FETs enabled: 8 μA
    • NORMAL mode, FETs disabled: 5 μA
    • SHUTDOWN Mode: < 1 μA
  • High voltage tolerance of 45 V on cell connect and select additional pins
  • Integrated one-time-programmable (OTP) memory for device settings, programmed by TI
  • Programmable interrupt for host processor, status information available through I 2C
  • 400-kHz I 2C serial communications with optional CRC support
  • Programmable LDO for external system usage
  • 20-pin QFN 3.5 mm × 3.5 mm × 0.9 mm (RGR) package

The Texas Instruments BQ77307 family of products features a highly integrated,high-accuracy primary protector for 2-series to 7-series Li-ion, Li-polymer, LiFePO 4 (LFP), and LTO battery packs. Each device includes a high-accuracy voltage, current, and temperature protection subsystem with integrated low-side protection NFET drivers and a programmable LDO for external system use. The BQ77307 provides an interrupt to a host processor and integrates an I 2C host communication interface, supporting up to 400-kHz operation with optional CRC to read status information and program settings. The BQ77307 is available in a 20-pin QFN package.

The Texas Instruments BQ77307 family of products features a highly integrated,high-accuracy primary protector for 2-series to 7-series Li-ion, Li-polymer, LiFePO 4 (LFP), and LTO battery packs. Each device includes a high-accuracy voltage, current, and temperature protection subsystem with integrated low-side protection NFET drivers and a programmable LDO for external system use. The BQ77307 provides an interrupt to a host processor and integrates an I 2C host communication interface, supporting up to 400-kHz operation with optional CRC to read status information and program settings. The BQ77307 is available in a 20-pin QFN package.
Download View video with transcript Video

Technical documentation

star =Top documentation for this product selected by TI
No results found. Please clear your search and try again.
View all 2
Top documentation Type Title Format options Date
* Data sheet BQ77307 2-Series to 7-Series High Accuracy Battery Primary or Secondary Protector for Li-Ion, Li-Polymer, LiFePO4(LFP), and LTO Battery Packs datasheet PDF | HTML 05 Dec 2023
User guide BQ77307 Technical Reference Manual PDF | HTML 06 Dec 2023

Design & development

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

Application software & framework

BQSTUDIO-TEST — Battery Management Studio (bqStudio) Software – Beta version downloads

Battery Management Studio (bqStudio) offers a full suite of robust tools to assist with the process of evaluating, designing with, configuring, testing, or otherwise utilizing TI Battery management products. This includes features that provide full access to registers and data memory including (...)

Supported products & hardware

Supported products & hardware
Download options
Package Pins CAD symbols, footprints & 3D models
VQFN (RGR) 20 Ultra Librarian

Ordering & quality

Information included:
  • RoHS
  • REACH
  • Device marking
  • Lead finish/Ball material
  • MSL rating/Peak reflow
  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring
Information included:
  • Fab location
  • Assembly location

Recommended products may have parameters, evaluation modules or reference designs related to this TI product.

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