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Products Wireless Charger Wireless Charging Receiver NU1669
Wireless Charging Receiver
NU1669
NU1669 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. NU1669 can conduct bi-directional communication with a transmitter system through ASK and FSK. The communication is compliant with WPC. NU1669 can also be operated as a transmitter (Tx) to charge another receiver.
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Key Spec
Features

• Integrated 19V High-efficiency Synchronous Rectifier.

• Integrated LDO to Provide Regulated Output Programmable VOUT from 3.5V to 12V with 5mV resolution.

• Low Dropout of LDO.

• Integrated Full Bridge Inverter and PWM Controller for transmitter.

• Integrated Back-to-back Load Switch for Direct battery charging.

• Integrated VAC detection and ACDRV pulldown control for automatic switching between wireless charging and wiredcable charging.

• Integrated V5V0 LDO and 1.8V LDO for analog and digital power supplies.

• Capless 1.2V LDO for GPIO output.

• Robust and Quick-responsive OVP, OCP, OCL, OTP, SCP and Back-to-Back load switch related protections.

• High Accuracy Current Sense and Voltage Sense

• 12 Channel, 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.

• Programmable FOD Gain and Offset.

• INT Output.

• 52-WCSP 4.06x 2.97mm, 0.45mm pitch.

Applications

• WPC v1.3 Compliant Receiver with Maximum 50W Receiver output Power.

• 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
NU1669

2025 / 08 / 22

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