MAX77787JEWX+

MAX77787JEWX+ is a 3.15A USB type-C autonomous charger with JEITA for 1-Cell Li-ion/LiFePO4 batteries. The fast-charge current and termination voltage is easily configured with resistors. The IC operates with input voltage of 4.5V to 13.4V and has a maximum input current limit of 3A. The IC also implements the adaptive input current limit (AICL) function that regulates the input voltage by reducing input current to prevent the voltage of a weak adapter from collapsing or folding back. The USB type-C configuration channel detection pins on the IC enable automatic USB Type-C power source detection and input current limit configuration without any software control as soon as the USB plug is inserted. The IC also integrates BC1.2 and proprietary adapter detection using the D+ and D- pins. Typical applications are mobile point-of-sale terminals, portable medical devices, wireless headphones, GPS trackers, charging cradles for wearable devices, power banks, mobile routers.

• 13.4V maximum input operating voltage, 3.15A maximum charging current
• 6A discharge current protection, no firmware or communication required
• Integrated CC detection-USB type-C, integrated BC1.2 detection-legacy SDP, DCP, CDP, DCD timeout
• Integrated USB detection for common proprietary charger types
• Input voltage regulation with adaptive input current limit (AICL)
• 5.1V, 1.5A OTG mode and BYP reverse boost, charge safety timer
• JEITA compliance with NTC thermistor monitor, thermal shutdown
• Resistor configurable fast-charge current/input current limit/termination voltage
• ENBST pin to enable and disable reverse boost, STAT pin to indicate charging status
• WLP package, -40°C to +85°C temperature range

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