NX1A4WP:A4WP compliant high frequency wireless charging receiver front end

The NX1A4WP is an A4WP (Alliance for Wireless Power) compliant wireless power receiver front end. It contains a high-voltage, highly efficient rectifier, integrated LDOs, a D1C-to-DC converter, a multi-channel 12-bit ADC, four GPIOs and a Fast-Mode I²C-bus interface. The integrated rectifier supports voltages of up to 20 V and is protected by an integrated automatic clamping function and an automatic over-power protection function. The DC-to-DC regulator delivers a nominal voltage of 5 V. The host microcontroller configures the on-chip controller for automatic interrupt-driven system control. The controller reads the rectifier output voltage, current level information, junction temperature and external temperature sensor information from the ADC. It controls the DC-to-DC converter as well as the GPIOs.

特性和优势
    • 5 V tolerant antenna input pins
    • Automatic over-voltage protection of the antenna inputs
    • 6.78 MHz compatible integrated rectifier
    • High efficiency with an active rectifier and a DC-to-DC converter
    • Integrated LDOs (1.8 V and 3.3 V up to 100 mA) with auto enable and discharge path
    • Integrated DC-to-DC buck regulator with 5 V, 1.2 A output
    • Multi-channel 12-bit ADC subsystem
    • Temperature sensor (NTC) analog interface
    • USB bus power supply detection
    • 400 kHz I²C-bus slave interface
    • Software and power-on reset of the on-chip digital controller
    • Programmable rectifier modes: active, half-active and passive
    • 2 digital General Purpose Input and Output ports (GPIOs) with open-drain outputs and up to 60 V tolerance for control and communication applications
    • 2 digital General Purpose Input and Output ports (GPIOs) with open-drain outputs and 25 V tolerance for control and communication applications
    • Protection circuitry:
      • Automatic over-power protection
      • Automatic AC short to ground for OVP option
      • Automatic DC-to-DC over-voltage protection lock out option
      • Over-temperature protection
      • Over-voltage protection
      • Under-voltage protection
      • Under-voltage lockout (for LDOs and DC-to-DC controller)
    • Automatic over-power protection
    • Automatic AC short to ground for OVP option
    • Automatic DC-to-DC over-voltage protection lock out option
    • Over-temperature protection
    • Over-voltage protection
    • Under-voltage protection
    • Under-voltage lockout (for LDOs and DC-to-DC controller)
    • Specified from -40 °C to +85 °C ambient temperature
    • 3.56 mm x 3.41 mm WLCSP with 0.5 mm pitch
应用
    • Portable electronic devices with integrated wireless charging / wireless power RX capabilities according to the A4WP standard
产品图片
封装与包装
型号封装Outline versionReflow-/Wave soldering包装产品状态标示可订购的器件编号, (订购码 (12NC))
NX1A4WP()量产Standard MarkingNX1A4WPZ( 9353 021 99012 )
无铅环保信息
型号可订购的器件编号RoHS / RHF无铅转换日期潮湿敏感度等级MSL LF
NX1A4WPNX1A4WPZAlways Pb-free11
文档资料
档案名称标题类型格式日期
NX1A4WP_SDSA4WP compliant high frequency wireless charging receiver front endShort data sheetpdf2015-07-09
订购信息
型号订购码 (12NC)可订购的器件编号
NX1A4WP9353 021 99012NX1A4WPZ
A4WP compliant high frequency wireless charging receiver front end nx1a4wp