The P9261 is a highly integrated, magnetic induction wireless power transmitter controller supporting the WPC Qi specifications or proprietary applications. The P9261 functions with multiple coils in a full-bridge or half bridge inverter configuration.

The P9261, 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 generates 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 P9261 includes input under-voltage, input overvoltage, 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 P9261 is available in a lead-free, space-saving 7 × 7 mm, 48-QFN wettable flank RoHS-compliant package. The product is rated over the operating temperature range of -40ºC to +105ºC.


  • AEC-Q100, grade 2 qualified for automotive applications
  • EMI/EMC performance meets the CISPR-25 specification
  • Supports up to 15W 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 multi-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

Product Options

注文可能な製品ID Part Status Pkg. Code Pkg. Type Lead Count (#) Temp. Grade Carrier Type 購入/サンプル
P9261-0NLG2 Active NLG48S1 VFQFPN 48 2 Tray
P9261-0NLG28 Active NLG48S1 VFQFPN 48 2 Reel
P9261-3CNLG2 Active NLG48S1 VFQFPN 48 2 Tray
P9261-3CNLG28 Active NLG48S1 VFQFPN 48 2 Reel

Documentation & Downloads

タイトル 他の言語 タイプ 形式 サイズ 日付
P9260-61 Datasheet Datasheet PDF 2.00 MB
P9260-61 Short-Form Datasheet Short Form Datasheet PDF 187 KB
AN-1015 P9261 CRB Q-Factor Tuning and Open FOD Thresholds Programming Guide Application Note PDF 731 KB
AN-1016 P9261 CRB Power-Loss and FOD Tuning Guide Application Note PDF 692 KB
AN-990 P9260-61 Layout Guidelines Application Note PDF 3.23 MB
Tuning Qi and AirFuel / PMA Inductive Resonance Circuits for Optimal Efficiency White Paper PDF 627 KB
P9261-3C-CRB Software Tool Software Tool ZIP 981 KB
P926x CRB Power-Loss and FOD Thresholds Calculator Tool Software Tool XLSX 38 KB
Wireless Power Products Overview (日本語) English, 简体中文 Overview PDF 1.16 MB

Boards & Kits

Part Number タイトル タイプ 会社名
P9261-3C-CRB Automotive 15W Wireless Charging Transmitter Customer Reference Board

News & Additional Resources

日付 昇順で並び替え
IDT Leads the Charge in the Automotive Market with Industry First In-vehicle Wireless Charging Customer Reference Board 2018年10月2日
Turn-key Solution Fuels the Growth of In-Vehicle Wireless Charging Adoption 2018年10月1日
Wireless Charging Isn’t Science Fiction 2018年5月11日
Samsung’s Galaxy S9 and Galaxy S9+ Smartphones are Powered by IDT® Wireless Charging Chipsets 2018年4月16日
Xiaomi Selects IDT® Wireless Charging Chipset for MI MIX 2S Smartphone and Wireless Charging Pad 2018年4月4日
HMD Global Unveils the Nokia 8 Sirocco Premium Smartphone Featuring IDT’s Leading-edge Wireless Charging Technology 2018年3月9日
IDT Wirelessly Powers SITAEL’s E-bike Smartphone Dock to a CES 2018 Innovation Award 2018年2月27日
Bi-Directional Communications Enhance Wireless Power Devices 2017年11月2日
IDT Introduces Wireless Power Solution Supporting Authentication and Bi-directional Data Transfer 2017年11月1日
Wireless Power Reference Kits 2017年1月27日
IDT、業界最高効率の15Wワイヤレス給電 トランスミッタとレシーバのソリューションを発表 2016年2月29日
IDT Celebrates Leadership Position in Wireless Power with 70 Million Units Shipped 2016年2月16日
Electronics Weekly: IDT's Anxiety Cure 2015年8月25日
IDT Wireless Power Transmitter Adopted for Samsung Galaxy 2015年3月2日
IDT社の新しいワイヤレスパワーチップセットが タブレットとファブレットの可能性を拡張 2015年3月4日