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Products Wireless Charger Wireless Charging Receiver NU1665
Wireless Charging Receiver
NU1665
NU1665 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. NU1665 can conduct bi-directional communication with a transmitter system through ASK and FSK. The communication is compliant with WPC. NU1665 can also be operated as a transmitter (Tx) to charge another receiver. Only a few external components are needed and maximum 10W power can be transferred.
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Key Spec
Features

• Integrated 30V High-efficiency Synchronous Rectifier.

• Integrated MLDO[1] to Provide Regulated Output Programmable VOUT from 3.5V to 20V with 8mV resolution.

• Low Dropout of output main LDO.

• Integrated Full Bridge Inverter and PWM Controller for transmitter.

• 1.8V and 1.2V Reference Voltage Output.

• V5V Power Supply Path Management: Internal LDO or External VDD.

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

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

• 10 Channel, 14bit ADC.

• Integrated 8MHz 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.

• 54-WCSP 3.932 x 2.822mm, 0.4mm pitch.

Applications

• WPC 15W EPP Compliant Receiver with Maximum 50W Received Power.

• WPC 5W BPP Compliant Transmitter with Maximum 10W Transmit Power.

• Smartphones, Power Bank.

• Medical, Industrial and Consumer Equipment.

Datasheet Download
NU1665

2025 / 08 / 22

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