Renesas P9415-RAWQI8

Overview

P9415-RAWQI8 from Renesas Electronics is a single-chip wireless power transmitter/receiver IC (TRx) supporting bidirectional magnetic induction power transfer, delivering up to 15W as receiver and up to 5W as transmitter in WattShare™ mode, with WPC 1.3 hardware compliance, integrated 32-bit ARM® Cortex®-M0 processor, and 24kB MTP memory for configurable FOD thresholds and default VOUT.

For engineers reviewing the P9415-RAWQI8 datasheet, P9415-RAWQI8 pinout, P9415-RAWQI8 application, or P9415-RAWQI8 equivalent, key selection criteria include bi-directional communication capability, synchronous full-bridge rectification, I²C 400kHz interface support, ultra-small 53-WLCSP package (2.82 × 4.22 × 0.50 mm), and programmable alignment detection via GP3/GP4 pins.

Technical Context

The P9415-RAWQI8 implements dual-mode operation using a shared analog front-end and digital control architecture: in Rx mode, it employs an internal synchronous full-bridge rectifier with VRECT over-voltage clamping and internal IOUT filtering to suppress battery charger ripple; in TRx (WattShare™) mode, it uses on-chip half-bridge inverter, demodulator, and reverse current sensing to enable up to 5W transmission while maintaining WPC-compliant communication.

Its embedded ARM® Cortex®-M0 processor manages real-time power negotiation, advanced FOD algorithms (including Q-factor monitoring via GP1/GP3), thermal shutdown, UVLO (2.5V threshold), and GPIO-controlled status signaling - all while operating from VRECT input without external LDOs beyond its integrated 1.8V/5.0V regulators.

Key Specifications

Pinout & Package

Package: 53-ball Wafer-Level Chip-Scale Package (WLCSP), 6 × 9 ball array, 0.40 mm pitch, 2.82 × 4.22 × 0.50 mm body height.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar wireless power receiver/transmitter applications.

Compared with IDT P9242-R and STWBC2-HP, the P9415-RAWQI8 uniquely combines WPC 1.3 compliance, true bidirectional 15W/5W operation, on-chip programmability, and X-Y alignment support - making it optimal for compact, standards-compliant dual-role mobile accessories.

Availability

P9415-RAWQI8 is available at Aetrix Electronics and suitable for smartphone secondary charging, wireless earbud case power management, and wearable health monitor charging requiring stable component supply, long-term lifecycle support, and WPC-compliant design assurance.

Supply support for P9415-RAWQI8 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Renesas Electronics is a global semiconductor leader delivering microcontrollers, analog, power, and SoC products for automotive, industrial, infrastructure, and IoT applications.

The P9415-RAWQI8 belongs to Renesas' wireless power TRx product line, designed specifically for compact, bidirectional, WPC-compliant mobile accessories requiring minimal external components and field-programmable behavior.

FAQ

What is the maximum power delivery capability of the P9415-RAWQI8 in receiver mode?

The P9415-RAWQI8 delivers up to 15W in receiver mode, supporting fast-charging applications for smartphones and tablets. This rating assumes proper thermal management, WPC-compliant transmitter pairing, and optimized coil design. The device maintains high efficiency across load ranges due to its synchronous full-bridge rectifier and internal IOUT filtering, which reduces ripple on the VOUT rail feeding the battery charger.

Does the P9415-RAWQI8 support WPC 1.3 specification compliance out of the box?

Yes, the P9415-RAWQI8 is WPC 1.3 Specification hardware-ready, meaning its analog front-end, modulation/demodulation circuitry, and communication protocol stack meet all mandatory requirements for certification. No external components or firmware modifications are needed to achieve baseline compliance, though final certification requires system-level testing with a qualified WPC test house.

How does the P9415-RAWQI8 implement foreign object detection (FOD)?

The P9415-RAWQI8 implements multi-layer FOD using both conventional voltage/current monitoring and Q-factor measurement via GP1 and GP3 pins. In receiver mode, it continuously tracks coil resonance characteristics to detect metallic interference with higher sensitivity than threshold-based methods alone. The embedded ARM® Cortex®-M0 processor runs adaptive algorithms that adjust detection sensitivity based on operating conditions and stored MTP parameters.

Can the P9415-RAWQI8 operate as both transmitter and receiver simultaneously?

No, the P9415-RAWQI8 operates in either transmitter or receiver mode at any given time - it does not support simultaneous bi-directional power transfer. Mode selection is controlled via firmware configuration and nEN pin state. However, it supports rapid mode switching (within milliseconds) to enable coordinated power handoff between devices in a WattShare™ ecosystem.

What package type and dimensions does the P9415-RAWQI8 use?

The P9415-RAWQI8 uses a 53-ball Wafer-Level Chip-Scale Package (WLCSP) measuring 2.82 × 4.22 × 0.50 mm with 0.40 mm ball pitch. This ultra-compact footprint is optimized for thin mobile devices and requires microvia PCB design with appropriate solder mask and copper thickness specifications per Renesas' package outline drawing (document #PS007-A).