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Product attributes Property Value
Manufacturer Texas Instruments
Product Series
Packaging Tray |
Function Multi-Function Controller
Battery Chemistry Lithium Ion/Polymer
Number of Cells 4 ~ 8
Fault Protection Over Current, Over Temperature, Over/Under Voltage, Short Circuit
Interface I2C
Operating Temperature -25°C ~ 85°C (TA)
Grade -
Qualification -
Mounting Type Surface Mount
Package / Case 38-TFSOP (0.173", 4.40mm Width)
Supplier Device Package 38-TSSOP
ROHS RoHS Compliant - Hazardous Substance Free Electronic Components | HQICKEY

The BQ77908ADBT from Texas Instruments is a multi-function battery management controller for Lithium Ion/Polymer batteries. It supports 4 to 8 cells and provides comprehensive fault protection including over current, over temperature, over/under voltage, and short circuit. The I2C interface allows for configuration and monitoring. With an operating temperature range of -25°C to 85°C, it is well-suited for consumer and commercial applications. The 38-TFSOP package offers a compact solution for space-constrained designs.

  • Comprehensive Protection: Includes overcurrent, over-temperature, over/under-voltage, and short-circuit protection for maximum safety.
  • Wide Cell Range: Supports 4 to 8 cells, covering a broad range of battery pack configurations.
  • I2C Interface: Enables easy configuration and real-time monitoring by a host microcontroller.
  • Compact Package: The 38-TFSOP package is ideal for space-limited portable devices.

Power Tool Battery Packs

Manage 4-8 cell Lithium Ion packs in cordless power tools, using the comprehensive protection features to prevent damage from overcurrent and short circuits.

E-Bike and E-Scooter Batteries

Monitor and protect mid-voltage battery packs in light electric vehicles, leveraging the I2C interface for state-of-charge reporting.

Portable Medical Devices

Ensure safe operation of lithium polymer batteries in medical equipment, where over-temperature and over-voltage protection are critical.

Robotic Vacuum Cleaners

Manage battery packs in home robotics, providing reliable protection and monitoring in a compact 38-TFSOP package.

Consumer Electronics

Protect 4-8 cell battery packs in high-performance laptops and portable electronics, with the -25°C to 85°C range covering typical indoor use.

Garden Equipment

Use in cordless lawn mowers and trimmers where multi-cell lithium packs require robust short-circuit and over-temperature protection.

Q: What is the function of the BQ77908ADBT?
A: It is a Multi-Function Controller.
Q: What battery chemistry does it support?
A: It supports Lithium Ion/Polymer batteries.
Q: How many cells can it manage?
A: It supports 4 to 8 cells.
Q: What fault protections are included?
A: It includes Over Current, Over Temperature, Over/Under Voltage, and Short Circuit protection.
Q: What interface does it use?
A: It uses the I2C interface.
Q: What is the operating temperature range?
A: It operates from -25°C to 85°C.
Base Product Number : BQ77908ADBT
38-TFSOP 4-8 Cells Battery Management BMS I2C Lithium Ion Lithium Polymer Multi-Function Controller Texas Instruments
Q: What is the function of the BQ77908ADBT?
A: It is a Multi-Function Controller.
Q: What battery chemistry does it support?
A: It supports Lithium Ion/Polymer batteries.
Q: How many cells can it manage?
A: It supports 4 to 8 cells.
Q: What fault protections are included?
A: It includes Over Current, Over Temperature, Over/Under Voltage, and Short Circuit protection.
Q: What interface does it use?
A: It uses the I2C interface.
Q: What is the operating temperature range?
A: It operates from -25°C to 85°C.