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Product attributes Property Value
Manufacturer Analog Devices Inc./Maxim Integrated
Product Series
Packaging Marketplace | Tube
Battery Chemistry Multi-Chemistry
Number of Cells 1 ~ 4
Current - Charging Constant - Programmable
Programmable Features -
Fault Protection Over Current, Short Circuit
Charge Current - Max 8A
Battery Pack Voltage 16.8V
Voltage - Supply (Max) 26V
Interface I2C
Operating Temperature -40°C ~ 85°C (TA)
Grade -
Qualification -
Mounting Type Surface Mount
Package / Case 28-WFQFN Exposed Pad
Supplier Device Package 28-TQFN (5x5)
ROHS RoHS Compliant - Hazardous Substance Free Electronic Components | HQICKEY

The MAX8731AETI+ is a multi-chemistry battery charger IC from Analog Devices/Maxim Integrated. It supports 1 to 4 cells and delivers a maximum charge current of 8A, with a battery voltage up to 16.8V. The device features an I2C interface for advanced control and monitoring. It includes over-current and short-circuit protection for enhanced safety. Operating from -40°C to 85°C (TA), it is suitable for a wide range of applications. The charger is housed in a 28-WFQFN exposed pad package.

  • Fast Charging: 8A maximum charge current enables rapid charging of large battery packs.
  • Flexible Configuration: Supports 1 to 4 cells and multiple chemistries, making it a versatile design choice.
  • Advanced Control: I2C interface allows for dynamic adjustment of charging parameters.
  • Comprehensive Protection: Over-current and short-circuit protection ensure safe operation under fault conditions.
  • Wide Temperature Range: Operates from -40°C to 85°C (TA), suitable for various environments.

High-Performance Notebooks

With support for up to 4 cells and 8A charge current, this charger is perfect for high-performance laptops that require fast charging and I2C control.

Portable Power Stations

For multi-chemistry battery packs in portable power stations, the MAX8731AETI+ provides efficient charging and robust protection for outdoor use.

Industrial Handheld Terminals

Rugged handheld devices used in logistics and field services can benefit from its -40°C to 85°C (TA) temperature range and reliable charging.

Medical Diagnostic Devices

Portable diagnostic equipment requiring 1-4 cell batteries can use this IC for safe and controlled charging in clinical environments.

Drones and UAVs

For high-capacity battery packs in drones, this charger offers the high current and protection needed for demanding aerial applications.

Q: What battery chemistries does the MAX8731AETI+ support?
A: It supports Multi-Chemistry batteries.
Q: How many cells can it charge?
A: It can charge 1 to 4 cells.
Q: What is the maximum charge current?
A: The maximum charge current is 8A.
Q: What is the maximum battery voltage?
A: The maximum battery voltage is 16.8V.
Q: What fault protections are available?
A: It includes Over Current and Short Circuit protection.
Q: What interface does it use?
A: It uses an I2C interface.
Base Product Number : MAX8731AETI
16.8V 28-WFQFN 8A Battery Charger I2C Maxim Integrated Multi-Chemistry
Q: What battery chemistries does the MAX8731AETI+ support?
A: It supports Multi-Chemistry batteries.
Q: How many cells can it charge?
A: It can charge 1 to 4 cells.
Q: What is the maximum charge current?
A: The maximum charge current is 8A.
Q: What is the maximum battery voltage?
A: The maximum battery voltage is 16.8V.
Q: What fault protections are available?
A: It includes Over Current and Short Circuit protection.
Q: What interface does it use?
A: It uses an I2C interface.