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Products Wireless Charger Wireless Charging Receiver NU1677
Wireless Charging Receiver
NU1677
NU1677 is a highly integrated and efficient wireless power receiver and suitable for up to 30W output power application. It integrates a synchronous rectifier and a programable low drop-out regulator. The regulator can provide a wide range regulated voltage. NU1677 can conduct bi-directional communication with a transmitter system through ASK and FSK. The communication is compliant with WPC Qi2.2 spec. NU1677 can also be operated as a transmitter (Tx) to charge another receiver.
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Key Spec
Features

• Integrated 30V high-efficiency synchronous rectifier.

• Integrated LDO to provide regulated output programmable VOUT from 3.5V to 23V with 10mV resolution.

• Low dropout of LDO.

• Integrated full bridge inverter and PWM controller for transmitter.

• Integrated V5V0 LDO and 1.5V LDO for analog and digital power supplies.

• Capless 1.8V LDO and 1.2V LDO for GPIO output.

• Robust and quick-responsive OVP, OCP, OTP, SCP protections.

• High accuracy current sense and voltage sense.

• 10 Channel, 14bit ADC. 

• Integrated 32Bit MCU core.

• 400kHz IIC interface.

• In-system programmability.

• Build-in bi-directional communications: ASK/FSK modulation and ASK/FSK demodulation.

• Enhanced iload ASK modulation for MPP. 

• Integrated Q factor and LC resonant frequency measurement.

• Integrated ping detect function and support MPP cloak mode

• Programmable FOD gain and offset.

• INT output. 

• 40-WCSP, 0.4mm pitch. 

Applications

• WPC Qi2.1 compliant receiver with maximum 50W receiver output power

• WPC MPP 25W compliant receiver

• WPC 5W BPP compliant transmitter for receiver power output with maximum 20W transmitter power input

• Smartphones, Pad, Smartwatch

• Medical, Industrial and Consumer Equipment

Datasheet Download
NU1677

2025 / 08 / 22

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