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Product attributes Property Value
Manufacturer Analog Devices Inc./Maxim Integrated
Product Series Smart Power Selector™
Packaging Factory | Tray
Battery Chemistry Lithium Ion/Polymer
Number of Cells 1
Current - Charging Constant - Programmable
Programmable Features Current, Timer, Voltage
Fault Protection Over Current, Over Temperature, Over-Under Voltage, Short Circuit
Charge Current - Max 3.15A
Battery Pack Voltage 4.35V
Voltage - Supply (Max) 13.7V
Interface USB
Operating Temperature -40°C ~ 85°C
Grade -
Qualification -
Mounting Type Surface Mount
Package / Case 24-PowerUFQFN
Supplier Device Package 24-FC2QFN (3x3)
ROHS RoHS Compliant - Hazardous Substance Free Electronic Components | HQICKEY

The Analog Devices MAX77757JEFG440+ is a highly integrated single-cell charger for Lithium Ion/Polymer batteries. It delivers up to 3.15A charge current with a 4.35V regulation voltage. The USB interface simplifies integration with standard charging adapters. This charger features robust protection including Over Current, Over Temperature, Over-Under Voltage, and Short Circuit. Packaged in a 24-PowerUFQFN, it operates from -40°C to 85°C, making it suitable for a wide range of portable and industrial applications.

  • High Charge Rate: 3.15A current enables rapid charging for large batteries.
  • High-Voltage Support: 4.35V regulation maximizes energy density of modern Li-Polymer cells.
  • Complete Protection Suite: Over Current, Over Temperature, Over-Under Voltage, and Short Circuit protection ensure maximum safety.
  • USB Compatibility: Simplifies design with ubiquitous USB power sources.
  • Industrial Temperature Range: -40°C to 85°C operation for demanding environments.

Premium Smartphones

3.15A charging current and 4.35V high-voltage battery support enable fast charging for next-generation high-capacity phone batteries.

Tablets and 2-in-1 Laptops

USB interface compatibility allows for charging from standard USB-C power adapters, simplifying cable management.

Portable Medical Devices

Comprehensive protection including Short Circuit and Over-Under Voltage ensures safe charging for critical health monitoring equipment.

Action Cameras and Drones

The compact 24-PowerUFQFN package is ideal for space-constrained devices that require high charge rates for quick turnaround.

Smart Glasses and AR Headsets

Its small footprint and robust protection make it suitable for wearable electronics with limited PCB space.

Industrial IoT Sensors

Wide -40°C to 85°C temperature range supports deployment in harsh outdoor industrial environments.

Q: What battery chemistry does this charger support?
A: It is designed for Lithium Ion/Polymer batteries.
Q: How many cells can it handle?
A: It supports a single-cell (1s) configuration.
Q: What is the maximum charge current?
A: The maximum charge current is 3.15A.
Q: What is the battery pack voltage?
A: The battery regulation voltage is 4.35V.
Q: What fault protections are included?
A: It includes Over Current, Over Temperature, Over-Under Voltage, and Short Circuit protection.
Q: What interface is used?
A: It uses a USB interface for charging control.
Base Product Number : MAX77757J
24-PowerUFQFN 3.15A 4.35V Analog Devices Battery Charger Linear Charger Lithium Ion/Polymer USB
Q: What battery chemistry does this charger support?
A: It is designed for Lithium Ion/Polymer batteries.
Q: How many cells can it handle?
A: It supports a single-cell (1s) configuration.
Q: What is the maximum charge current?
A: The maximum charge current is 3.15A.
Q: What is the battery pack voltage?
A: The battery regulation voltage is 4.35V.
Q: What fault protections are included?
A: It includes Over Current, Over Temperature, Over-Under Voltage, and Short Circuit protection.
Q: What interface is used?
A: It uses a USB interface for charging control.