NX1WP10: A4WP compliant high frequency wireless charging receiver front end
The NX1WP10 is an A4WP (Alliance for Wireless Power) compliant wireless power receiver
front end. It contains a high-voltage, highly efficient active rectifier, integrated
LDOs, a DC-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
detuning function. The DC-to-DC regulator delivers an adjustable output voltage between
4.2 V and 10 V with a maximum DC current of up to 1.1 A. It is used to charge portable
devices through a PMU or a charging controller. The integrated LDOs are directly linked
to the rectifier output. They are automatically enabled once a sufficient voltage level
at the output of the rectifier is reached. These voltages are used to supply the
corresponding wireless power receiver controller and BT-LE transceiver. The host
microcontroller configures the on-chip controller for automatic interrupt-driven system
control.
The microcontroller can measure the rectifier output voltage, current level information,
junction temperature and external temperature sensor information with the ADC. It
controls the DC-to-DC converter as well as the GPIOs. Key safety functions are
implemented with low power analog comparators. For example, one of the selectable safety
functions prevents the junction temperature from exceeding its limits by automatically
detuning the antenna. The overall system efficiency from the antenna input to the
DC-to-DC output reaches 86 %.
Data Sheets (1)
Ordering Information
| Product | Status | Status | Budgetary Price excluding tax(US$) | Package Type and Termination Count | GPIOs | Qualification Tier |
|---|
| NX1WP10 | Active | | | | | |
Package Information
| Product ID | Package Description | Outline Version | Reflow/Wave Soldering | Packing | Product Status | Part NumberOrdering code(12NC) | Marking | Chemical Content | RoHS / Pb Free / RHF | LeadFree Conversion Date | MSL | MSL LF |
|---|
| NX1WP10 | | | | | Active | NX1WP10Z
(9353 062 95012) | Standard Marking | NX1WP10 |    | Always Pb-free | 1 | 1 |
