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Normaler Preis $4.95
Normaler Preis $5.21 Verkaufspreis $4.95
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15+ $4.79 $71.85
25+ $4.69 $117.25
50+ $4.43 $221.50
100+ $3.91 $391.00
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Product attributes Property Value
Manufacturer Analog Devices Inc./Maxim Integrated
Product Series
Packaging 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 3.5A
Battery Pack Voltage 12V (Max)
Voltage - Supply (Max) 19V
Interface I2C
Operating Temperature -40°C ~ 85°C
Grade -
Qualification -
Mounting Type Surface Mount
Package / Case 32-PowerUFQFN
Supplier Device Package 32-FC2QFN (4x4)
ROHS RoHS Compliant - Hazardous Substance Free Electronic Components | HQICKEY

The MAX77985AEFD is a sophisticated I2C-controlled battery charger for single-cell Lithium Ion/Polymer batteries. It supports a high charge current of up to 3.5A and a maximum battery voltage of 12V, making it suitable for a wide range of high-capacity portable devices. The charger includes comprehensive protection features such as overcurrent, over-temperature, and over-under voltage safeguards. Its compact 32-PowerUFQFN package is ideal for advanced, space-constrained designs.

  • High-Current Charging: Supports up to 3.5A, enabling fast charging for large batteries.
  • I2C Programmability: Offers flexible control and monitoring via the I2C interface for optimized charging.
  • Robust Protection: Includes Over Current, Over Temperature, Over-Under Voltage, and Short Circuit protection for enhanced safety.
  • Wide Voltage Range: Supports battery voltages up to 12V, accommodating various battery configurations.

High-Capacity Tablets

Charge large-format Lithium Ion/Polymer batteries in tablets and 2-in-1 laptops, leveraging the 3.5A charge current and I2C interface for smart charging profiles.

Portable Medical Equipment

Power battery packs in portable patient monitors and infusion pumps, where the I2C interface allows precise voltage control up to 12V and robust fault protection is critical.

Smart Home Hubs

Integrate into smart speakers and home automation hubs with backup batteries, ensuring reliable charging and communication via I2C.

Industrial IoT Devices

Deploy in wireless sensors and trackers operating in -40°C to 85°C environments, benefiting from the wide temperature range and over/under voltage protection.

High-End Consumer Electronics

Support fast charging in premium cameras and portable audio equipment, where the compact 32-PowerUFQFN package and high current capability are essential.

Q: What battery chemistry does the MAX77985AEFD support?
A: It supports Lithium Ion/Polymer batteries.
Q: How many cells can it charge?
A: It is designed for 1 cell.
Q: What is the maximum charge current?
A: The maximum charge current is 3.5A.
Q: What is the maximum battery voltage?
A: The maximum battery voltage is 12V.
Q: What interface does it use?
A: It uses an I2C interface for control and monitoring.
Q: What fault protections are included?
A: It includes Over Current, Over Temperature, Over-Under Voltage, and Short Circuit protection.
Base Product Number : MAX77985AEFD
12V 3.5A 32-PowerUFQFN Battery Charger I2C Battery Charger Lithium Ion/Polymer
Q: What battery chemistry does the MAX77985AEFD support?
A: It supports Lithium Ion/Polymer batteries.
Q: How many cells can it charge?
A: It is designed for 1 cell.
Q: What is the maximum charge current?
A: The maximum charge current is 3.5A.
Q: What is the maximum battery voltage?
A: The maximum battery voltage is 12V.
Q: What interface does it use?
A: It uses an I2C interface for control and monitoring.
Q: What fault protections are included?
A: It includes Over Current, Over Temperature, Over-Under Voltage, and Short Circuit protection.