- support@husseinkey.com
- livechat
Analog Devices Inc. MAX77757 USB Type-C® Autonomous Charger is a standalone 3.15A device with JEITA for 1-Cell Li-ion/LiFePO4 batteries that supports reverse boost capability. The MAX77757 charger operates from a 4.5V to 13.7V input voltage range and has a maximum input current limit of 3A. This IC implements the Adaptive Input Current Limit (AICL) function. This AICL function regulates the input voltage by reducing input current to prevent the weak adapter’s voltage from collapsing or folding back. The USB Type-C Configuration Channel (CC) detection pins on the MAX77757 IC enable automatic USB Type-C power source detection and input current limit configuration. The MAX77757 IC offers reverse-boost capability up to 5.1V and 1.5A that can be enabled with the ENBST pin.
ADI MAX77757 autonomous charger is equipped with a Smart Power Selector™ and a battery true-disconnect FET. These equipped devices control the charging and discharging of the battery or isolate the battery in case of a fault. The MAX77757 IC is offered in several variants to support Li-ion batteries with various termination voltages from 4.1V to 4.5V. This charger comes with a 3.6V termination voltage option for LiFePO4 batteries. The MAX77757 IC is available in 3mm x 3mm dimensions, 0.4mm pitch, and 24-lead FC2QFN package. Typical applications include Mobile Point-of-Sale (mPOS) terminals, portable medical devices, wireless headphones, GPS trackers, charging cradles for wearable devices, and power banks.
