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Product attributes Property Value
Manufacturer Texas Instruments
Product Series
Packaging Cut Tape (CT) | Tape & Reel (TR)
Battery Chemistry Multi-Chemistry
Number of Cells 1 ~ 4
Current - Charging Constant
Programmable Features -
Fault Protection Over Temperature, Over Voltage, Short Circuit
Charge Current - Max 8.128A
Battery Pack Voltage 19.2V (Max)
Voltage - Supply (Max) 24V
Interface SMBus
Operating Temperature -40°C ~ 155°C (TJ)
Grade -
Qualification -
Mounting Type Surface Mount
Package / Case 32-WFQFN Exposed Pad
Supplier Device Package 32-QFN (4x4)
ROHS RoHS Compliant - Hazardous Substance Free Electronic Components | HQICKEY

The Texas Instruments BQ25708RSNR is a multi-chemistry battery charger controller supporting 1 to 4 cells with a maximum charge current of 8.128A. It handles battery voltages up to 19.2V and communicates via SMBus. Integrated protections include Over Temperature, Over Voltage, and Short Circuit. The device operates from -40°C to 155°C and is packaged in a 32-WFQFN Exposed Pad.

  • Ultra-Fast Charging: Up to 8.128A current dramatically reduces charge time for large packs.
  • Multi-Chemistry Support: Flexible design works with various battery types.
  • Extended Temperature Range: Rated to 155°C junction, ideal for high-power applications.
  • SMBus Interface: Enables precise system integration and monitoring.

High-Performance Gaming Laptops

Deliver up to 8.128A charge current for large multi-cell batteries, enabling rapid recharge between gaming sessions.

Portable Power Stations

Manage 1-4 cell packs in emergency power units, with SMBus communication for accurate state-of-charge reporting.

Drones and UAVs

Support high-capacity Li-Ion packs with fast charging and Over Temperature protection for safe field operation.

Industrial Tablets

Provide robust charging in harsh environments, with the -40°C to 155°C junction temperature range handling extreme conditions.

Electric Bicycle Batteries

Charge 4-cell packs efficiently, leveraging the high current capability and multi-chemistry flexibility.

Q: What battery chemistries does the BQ25708RSNR support?
A: It supports Multi-Chemistry batteries, including Li-Ion and other types.
Q: How many cells can it charge?
A: It supports 1 to 4 cells.
Q: What is the maximum charge current?
A: The maximum charge current is 8.128A.
Q: What is the maximum battery voltage?
A: The maximum battery pack voltage is 19.2V.
Q: What protections are included?
A: It includes Over Temperature, Over Voltage, and Short Circuit protection.
Q: What interface does it use?
A: It uses an SMBus interface for control.
Base Product Number : BQ25708
1-4 Cells 19.2V 32-WFQFN 8.128A Battery Charger Multi-Chemistry SMBus Switch Mode Charger Texas Instruments
Q: What battery chemistries does the BQ25708RSNR support?
A: It supports Multi-Chemistry batteries, including Li-Ion and other types.
Q: How many cells can it charge?
A: It supports 1 to 4 cells.
Q: What is the maximum charge current?
A: The maximum charge current is 8.128A.
Q: What is the maximum battery voltage?
A: The maximum battery pack voltage is 19.2V.
Q: What protections are included?
A: It includes Over Temperature, Over Voltage, and Short Circuit protection.
Q: What interface does it use?
A: It uses an SMBus interface for control.