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Products Wireless Charger Wireless Charging Receiver NU1668
Wireless Charging Receiver
NU1668
NU1668 is a highly integrated and efficient wireless power receiver and suitable for up to 50W output power application. It integrates a synchronous rectifier and a programable low drop-out regulator. The regulator can provide a wide range regulated voltage. NU1668 can conduct bi-directional communication with a transmitter system through ASK and FSK. The communication is compliant with WPC. NU1668 can also be operated as a transmitter (Tx) to charge another receiver.
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Key Spec
Features

• Integrated 27V High-efficiency Synchronous Rectifier.

• Integrated LDO to Provide Regulated Output Programmable VOUT from 3.5V to 21V with 10mV resolution.

• Low Dropout of LDO.

• Integrated Full Bridge Inverter and PWM Controller for transmitter.

• LDO5P0 Power Supply Path Management: Internal LDO or External VDD_TEST.

• Robust and Quick-responsive OVP, OCP, OTP, OPP and SCP.

• High Accuracy Current Sense, Accuracy is <2%.

• 10 Channels, 14bit ADC.

• Integrated 32Bit MCU Core.

• 400kHz I 2C Interface.

• In-system Programmability.

• Build-in Bi-directional Communications: ASK/FSK Modulation and ASK/FSK Demodulation.

• Integrated Q Factor Measurement.

• Programmable FOD Gain and Offset.

• INT Output.

• Support MST function.

• 54-WCSP 4mm x 2.8mm, 0.4mm pitch.

Applications

• WPC v1.3 Compliant Receiver with 30W Receiver output power(Maximum 50W is available).

• WPC 5W BPP Compliant Transmitter for Receiver power output with Maximum 10W Transmitter power input.

• Smartphones, Power Bank.

• Medical, Industrial and Consumer Equipment. 

Datasheet Download
NU1668

2025 / 08 / 22

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