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 version | Reflow-/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 Marking | NX1A4WPZ(
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 |
---|
NX1A4WP | NX1A4WPZ | | Always Pb-free | 1 | 1 |
文档资料
档案名称 | 标题 | 类型 | 格式 | 日期 |
---|
NX1A4WP_SDS | A4WP compliant high frequency wireless charging receiver
front end | Short data sheet | pdf | 2015-07-09 |
订购信息
型号 | 订购码 (12NC) | 可订购的器件编号 |
---|
NX1A4WP | 9353 021 99012 | NX1A4WPZ |