MAX77757 (4)
The MAX77757 is available from Analog Devices Inc./Maxim Integrated Inc./Maxim Integrated at Xecor. Designed for autonomous charging of 1-cell Li-ion/LiFePO4 batteries, the MAX77757 offers 3.15A maximum charging current, USB Type-C® CC detection, JEITA compliance, and reverse boost capability up to 5.1V. Available in a compact 24-lead FC2QFN package, it is ideal for portable medical devices, wireless headphones, GPS trackers, power banks, and charging cradles for wearable devices. Whether used in mobile point-of-sale (mPOS) terminals or mobile routers, this series ensures efficient power management, safety, and scalability for demanding applications. Xecor is an authorized distributor for Analog Devices Inc./Maxim Integrated Inc./Maxim Integrated. Please view our extensive selection of the MAX77757 series below.
| Part Number | Description | Package | Inventory | Add To Bom |
|---|---|---|---|---|
| MAX77757HEFG370+ | Compact -pin FCFN tray design for space-saving applications | FC2QFN | 9,121 | |
| MAX77757JEFG420+T | Battery Management 3.15A USB Type-C Autonomous Charger with JEITA for 1-Cell Li-ion/LiFePO4 Batteries | FC2QFN | 6,057 | |
| MAX77757JEFG435+ | Battery Management 14V Input, 3A USB Type C Autonomous Charger with JEITA | FC2QFN | 6,752 | |
| MAX77757JEFG440+ | Battery Management 14V Input, 3A USB Type C Autonomous Charger with JEITA | FC2QFN | 8,975 |
Key Featrues
Reverse Boost Capability: With reverse boost functionality up to 5.1V and 1.5A, the MAX77757 can power external devices or charge other batteries. This feature expands its use cases, making it ideal for power banks and portable devices that require bidirectional power flow.
Adaptive Input Current Limit (AICL): The AICL function regulates input voltage by dynamically adjusting the input current, preventing voltage collapse with weak adapters. This ensures stable operation across various power sources, enhancing reliability and protecting connected devices.
JEITA Compliance with NTC Thermistor: The MAX77757 supports JEITA compliance for temperature monitoring, automatically adjusting charging parameters based on battery temperature. This improves safety and extends battery life by preventing overheating or undercharging in extreme conditions.
Integrated Power Path and Battery True-Disconnect FET: The IC includes a Smart Power Selector™ and a battery true-disconnect FET, enabling efficient power management and isolation during faults. This feature ensures uninterrupted device operation and protects the battery, making it suitable for critical applications like portable medical devices.
Applications
Wireless Headphones: The MAX77757 is perfect for wireless headphones, providing efficient charging and power management. Its reverse boost capability allows the headphones to act as a power bank for other devices, while its compact 3mm x 3mm package ensures it fits seamlessly into small form factors.
GPS Trackers: The MAX77757 is well-suited for GPS tracking devices, offering reliable charging and power management for long-lasting operation. Its adaptive input current limit (AICL) ensures stable charging even with weak adapters, making it ideal for outdoor and remote tracking applications.
Power Banks: The MAX77757 is an excellent choice for power banks, providing high-efficiency charging and reverse boost capability. Its integrated USB Type-C and BC1.2 detection enable compatibility with a wide range of devices, while its safety features, such as thermal shutdown and JEITA compliance, ensure safe and reliable operation.
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