CN
Wireless Charging Transmitter
NU1020
NU1020 is a family of highly integrated full-bridge power stage IC optimized for wireless power transmitter solutions. The device integrates all critical functions, such as high-efficiency power FETs, lowEMI FET drivers, bootstrap circuit, 5V integrated DC/DC power supply, 3.3V (2.5V configurable) LDO and lossless current measurement. The proprietary current-measurement circuit provides the accurate current reading used for the FOD (Foreign Object Detection) power measurement, in-band communication, Q factor detection, and digital demodulation.
Key Spec
Features

Wide Input Voltage: 4V to 21V

Integrated High-Efficiency Full- Bridge FETs

Integrated FET Driver Optimized for Low EMI

Integrated 5V DC/DC for IC power supply

Integrated 3.3V (2.5V configurable) LDO to Bias External Circuit and Provide Reference Voltage

High-Accuracy, Lossless Current Measurement for FOD and In-Band Communication

Integrated Lossless Q Factor Detection

Integrated Low-Error-Rate Digital Demodulation

Input UVLO and OVP

Over-Current Protection

Thermal Shutdown

I 2C Interface

4mm * 4mm QFN Package

Applications

Wireless Power Transmitter Compliant with WPC V1.2.4 Extended Power Profile (EPP)

Wireless Power Transmitter for Consumer, Industrial, Automotive Aftermarket, and Medical Applications

Motor Drivers

Datasheet Download
NU1020

2025 / 08 / 26