The P9235A-RB is a highly integrated, magnetic induction, wireless power transmitter supporting up to 5W of total wireless system power. The P9235-RB offers a pre-programmed bootloader that must be used in conjunction with an external flash memory that contains control firmware. This architecture gives user a flexibility to change the firmware in the external flash to meet application specific requirements. IDT also provides firmware to implement standard WPC coil configurations such as the A11a.

The P9235A-RB includes an under-voltage lockout, Foriegn object detection (FOD)  and thermal management circuit to safeguard the device under fault conditions. Together with the P9225-R receiver (RX), the P9235A-RB forms a complete 5W wireless power system solution.

The P9235A-RB is available in a Pb-free, space-saving 5 × 5 mm 40-VFQFPN package. The product is rated over an
operating temperature range of -40°C to +85°C.

Features

  • Power transfer up to 5W
  • Wide input voltage range: 4.25V to 21V
  • WPC compatible
  • Integrated step-down switching regulator
  • Embedded 32-bit ARM® Cortex®-M0 processor (trademark of ARM, Ltd.)
  • Integrated drivers for external power FETs
  • Simultaneous voltage and current demodulation scheme for robust communication
  • Integrated current sense amplifier
  • Low standby power
  • Dedicated remote temperature sensing
  • Two LED outputs that can indicate power transfer and fault conditions
  • Foreign object detection (FOD)
  • Active-LOW enable pin for electrical on/off
  • Over-current and over-temperature protection
  • Supports I2C interface
  • -40 to +85°C ambient operating temperature range
  • 5 × 5 mm 40-VFQFPN RoHS-compliant package

Product Options

Orderable Part ID Part Status Pkg. Code Pkg. Type Lead Count (#) Temp. Grade Pb (Lead) Free Carrier Type Buy Sample
P9235A-RBNDGI Active NDG40P2 VFQFPN 40 I Yes Tray
Availability
P9235A-RBNDGI8 Active NDG40P2 VFQFPN 40 I Yes Reel
Availability

Technical Documentation

Title Other Languages Type Format File Size Date
Datasheets & Errata
P9235A-RB Datasheet Datasheet PDF 971 KB
User Guides & Manuals
P9235A-RB Layout Guide Guide PDF 1.75 MB
Application Notes & White Papers
Tuning Qi and AirFuel / PMA Inductive Resonance Circuits for Optimal Efficiency White Paper PDF 541 KB
PCNs & PDNs
PCN# : A1904-01 Add Greatek, Taiwan as an Alternate Assembly Facility Product Change Notice PDF 983 KB
PCN# : W1905-01 Product Change Notice for TSMC Fab6 Alternate Foundry Product Change Notice PDF 1.15 MB
Other
Wireless Power Overview 日本語, 简体中文 Overview PDF 534 KB
Wireless Power Reference Solution for 0.5W to 3W Applications (WP3W-RK) 日本語 Product Brief PDF 333 KB
P9235A-R Wireless Power Transmitter for 3W Applications 日本語 Product Brief PDF 246 KB

Software & Tools

Title Other Languages Type Format File Size Date
P9235A-RB A11a Configuration Flash HEX File Software ZIP 20 KB

Evaluation Boards

Part Number Title Sort ascending
P9235A-RB-EVK Wireless Power Transmitter Evaluation Kit for P9235A-RB