Description

The P9242-R is a highly integrated, magnetic induction, wireless

power transmitter supporting up to 15W. The system-on-chip

operates with an input voltage range of 4.25V to 21V.

The transmitter includes an industry-leading 32-bit ARM® Cortex®-

M0 processor offering a high level of programmability while

consuming extremely low standby power. The P9242-R features

two LED outputs with pre-defined user-programmable blinking

patterns, buzzer, and programmable over-current protection

supporting a wide range of applications. The I2C serial

communication allows the user to read information such as voltage,

current, frequency, and fault conditions. The P9242-R includes an

under-voltage lockout and thermal management circuit to safe

guard the device under fault conditions. Together with the P9221-

R receiver (RX), the P9242-R is a complete wireless power system

solution.

The P9242-R is available in a lead-free, space-saving 48-VFQFN

package. The product is rated for a -40ºC to +85ºC operating

temperature range.

Features

ƒ Power transfer up to 15W

ƒ Wide input voltage range: 4.25V to 21V

ƒ WPC-1.2 compliant, MP-A2 coil configuration

ƒ Integrated step-down switching regulator

ƒ Embedded 32-bit ARM® Cortex®-M0 processor

ƒ Integrated drivers for external power FETs

ƒ Simultaneous voltage and current demodulation scheme for

communication

ƒ Integrated current sense amplifier

ƒ Low standby power

ƒ Dedicated remote temperature sensing

ƒ Programmable current limit

ƒ Power transfer LED indicator

ƒ User programmable foreign objects detection (FOD)

ƒ Pre-defined user-programmable LED pattern

ƒ Active-LOW enable pin for electrical on/off

ƒ Over-current and over-temperature protection

ƒ Supports I2C interface

ƒ -40 to +85°C ambient operating temperature range

ƒ 48-VFQFN (6 u 6 mm) RoHS-compliant package