Automotive, High Efficiency, Qi-Compliant

15W Wireless Power Transmitter

P9260/P9261

Short-Form Datasheet

© 2018 Integrated Device Technology, Inc.

1

February 23, 2018

9V to 16V

ISNS_IN

VIN

Peak

Detector

P9261

SW_S

LDO33

LDO18

PREG

LDO_VIN

P9221-R

VOUT

GND

Power + Communication

Communication

COIL

SELECTION

Voltage

Regulator

VDDIO

Rsns

Description

The IDT P9260 and P9261 are highly integrated, magnetic induc-

tion wireless power transmitter controllers supporting the WPC Qi

specifications or proprietary applications. Depending on the

product code, the P9260/61 can function with a single coil or

multiple coils in a full-bridge or half bridge inverter configuration.

The P9260 is designed to support single-coil applications, and the

P9261 is for multi-coil designs.

The P9260/61, which includes an industry-leading 32-bit ARM®

Cortex®-M0 processor, offers a high level of programmability and

extremely low standby power consumption. The transmitter gen-

erates power through the power coil, detects the presence of a

wireless power receiver, decodes the communication packets from

the receiver, and adjusts the transmitted power by controlling the

voltage based on feedback from the receiver. The transmitter will

enable the power receiver to output 15W if the bidirectional

communication protocol can be established, or the power receiver

will output only 5W for a standard 5W power receiver.

The transmitter detects if a foreign metal object is placed on the

transmitter coil. To safeguard the device and the system under fault

conditions, the P9260/61 includes input under-voltage, input over-

voltage, output short-circuit, and over-temperature protection.

The microcontroller empowers the user to customize features such

as LED patterns, foreign object detection (FOD) threshold settings,

or the over-temperature threshold. The device supports the I2C

serial interface protocol, which enables the user to control the basic

parameters, such as operating mode, switching frequency, input

current, and input voltage.

The P9260 is available in a lead-free, space-saving 7

 7 mm,

48-QFN wettable flank package. The product is rated over the

operating temperature range of -40ºC to +105ºC.

Features



AEC-Q100, grade 2 qualified for automotive applications



EMI/EMC performance meets the CISPR-25 specification



Supports up to15W wireless power receivers



Wide input voltage range: 4.25V to 21V



Fixed frequency and duty cycle wireless power topology



WPC 1.2.4 compliant and will support future WPC

compatibility; supports single or multiple coil configurations



Embedded 32-bit ARM® Cortex®-M0 processor (trademark of

ARM, Ltd.)



OTP program memory; also supports external flash memory



Supports I2C and SPI interfaces



Integrated drivers for external power FETs and current voltage

sensing



Low standby power



Integrated step-down switching regulator for internal blocks to

increase overall efficiency



Advanced foreign objects detection (FOD) and Q-factor

function



Supports LEDs for status indication and alignment aid



Over-current, over-voltage, and over-temperature protection



Dedicated remote temperature sensing



7

 7 mm, 48-QFN wettable flank RoHS-compliant package



-40ºC to +105ºC ambient operating temperature range

Typical Applications



Automotive in-cabin WPC Qi 1.2.4 wireless charger

Simplified P9261 Application Schematic