Analog Devices Inc./Maxim Integrated MAX77985AEFD+
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $4.95 | $4.95 |
| 15+ | $4.79 | $71.85 |
| 25+ | $4.69 | $117.25 |
| 50+ | $4.43 | $221.50 |
| 100+ | $3.91 | $391.00 |
| N+ | $0.78 | Price Inquiry |
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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 |
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.
- 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.

MAX77985AEFD+.pdf