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Product attributes Property Value
Manufacturer Texas Instruments
Product Series
Packaging Tube |
Function Battery Protection
Battery Chemistry Lithium Ion
Number of Cells 3 ~ 5
Fault Protection Over Current, Over Temperature, Over/Under Voltage, Short Circuit
Interface -
Operating Temperature -40°C ~ 85°C (TA)
Grade -
Qualification -
Mounting Type Surface Mount
Package / Case 20-TSSOP (0.173", 4.40mm Width)
Supplier Device Package 20-TSSOP
ROHS RoHS Compliant - Hazardous Substance Free Electronic Components | HQICKEY

The BQ7790500PW from Texas Instruments is a multi-function battery protection IC for Lithium Ion packs. It monitors 3 to 5 series cells and offers Over Current, Over Temperature, Over/Under Voltage, and Short Circuit protection. Packaged in a 20-TSSOP, it operates from -40°C to 85°C, ideal for consumer electronics, power tools, and backup systems.

  • Integrated Multi-Protection: Covers over-current, over-temperature, over/under-voltage, and short circuit.
  • Wide Temperature Range: -40°C to 85°C ensures operation in varied conditions.
  • Compact 20-TSSOP Package: Saves board space while providing robust protection.
  • Flexible Cell Support: Works with 3 to 5 series cells, simplifying design.

3-Cell Portable Electronics

For 3-series Lithium Ion packs in laptops or tablets, this IC provides full protection against common faults.

4-Cell E-Bike Batteries

E-bikes with 4-series cells benefit from over-current and short circuit protection, enhancing rider safety.

5-Cell Power Tools

High-drain power tools with 5-series packs use this device to prevent over-temperature and over-voltage damage.

Backup Power Units

UPS systems with 3-5 cells rely on this IC for reliable over/under voltage monitoring.

Robotic Vacuum Cleaners

Autonomous robots with 3-5 cells require robust protection; this IC ensures safe charging and discharging.

Q: What is the function of the BQ7790500PW?
A: It is a battery protection IC designed for Lithium Ion batteries.
Q: How many cells does it support?
A: It supports 3 to 5 series-connected cells.
Q: What protections are included?
A: It provides Over Current, Over Temperature, Over/Under Voltage, and Short Circuit protection.
Q: What is the operating temperature range?
A: The range is -40°C to 85°C (TA).
Q: What package is used?
A: It is available in a 20-TSSOP package.
Base Product Number : BQ7790500PW
3-5 Cells Battery Management Battery Protection BMS Lithium Ion Over Current Over Temperature Over/Under Voltage Short Circuit Texas Instruments TSSOP
Q: What is the function of the BQ7790500PW?
A: It is a battery protection IC designed for Lithium Ion batteries.
Q: How many cells does it support?
A: It supports 3 to 5 series-connected cells.
Q: What protections are included?
A: It provides Over Current, Over Temperature, Over/Under Voltage, and Short Circuit protection.
Q: What is the operating temperature range?
A: The range is -40°C to 85°C (TA).
Q: What package is used?
A: It is available in a 20-TSSOP package.