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Products Wireless Charger Wireless Charging Transmitter NU1718
Wireless Charging Transmitter
NU1718
NU1718 is a highly integrated wireless power transmitter controller. It integrates a buck/boost controller designed for power stage input voltage regulation, 4 pair Half Bridge drivers, a 32bit MCU core and a fast charge block of QC/PD protocol. NU1718 integrates all critical functions of power system, such as low-EMI FET drivers, bootstrap circuit, 5V/3.3V/1.8V LDO power supply, high-accuracy current measurement.
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Key Spec
Features

• Wide Input Voltage: 4.5V to 30V

• Integrated Boost/Buck Controller, output voltage range is 5V to 45V with 25mV step

• Integrated 3 pair Half-Bridge Drivers with controllable dead-time and slew rate

• Integrated 5V, 3.3V and 1.8V LDO

• High-Accuracy Current Measurement for FOD and In-Band Communication

• Integrated high precision Q Factor and LC resonant Frequency Measurement

• Integrated Low-Error-Rate Digital Demodulation

• Robust OVP, UVP, OCP, OJP (Juggle Protection) and TSD Protection

• I 2C Master/Slave and UART Interfaces

• 13 channel, 14bit ADC

• Integrated 91.996MHz, 32Bit/64K MTP/4K SRAM MCU Core

• Integrated QC/PD3.0(PPS) protocol function

• Ultra-Low quiescent current in SLEEP mode: <20uA

• 6 mm * 6 mm QFN48 Package

Applications

• Wireless Power Transmitter Compliant with WPC V1.3 Extended Power Profile (EPP) 15W

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

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NU1718

2025 / 08 / 22

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