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Renesas P9225-RAHGI
- Part No.:
- P9225-RAHGI
- Manufacturer:
- Renesas
- Category:
- Power Management - Specialized
- Package:
- 52-UFBGA, WLCSP
- Datasheet:
-
P9225-RAHGI.pdf
- Description:
- IC WIRELESS PWR RECEIVER 52WLCSP
- Quantity:
- Payment:
- Shipping:
Inventory:2,277
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Product details
Overview
P9225-RAHGI from Renesas Electronics (formerly IDT) is a dual-mode WPC 1.2.4 and PMA SR1 compliant wireless power receiver IC with integrated 32-bit ARM® Cortex®-M0 microcontroller, synchronous rectifier (RDS(ON) < 40 mΩ), and ultra-low-dropout LDO regulator delivering 4.5–5.5 V at up to 1.2 A for 5 W battery-charging applications in headsets and portable medical devices.
For engineers reviewing the P9225-RAHGI datasheet, P9225-RAHGI pinout, P9225-RAHGI application, or P9225-RAHGI equivalent, this page provides verified technical context on dual-protocol operation, programmable VOSET/ILIM calibration, patented over-voltage clamp, I²C register access, and thermal shutdown behavior - all confirmed for the 52-WLCSP (AHG52) package.
Technical Context
The P9225-RAHGI implements magnetic inductive power reception using two AC input pairs (AC1/AC2) feeding an integrated synchronous rectifier, followed by an ultra-low-dropout linear regulator with programmable output voltage via VOSET. Its embedded Cortex-M0 executes real-time foreign object detection (FOD) using RPPO/RPPG calibration inputs and advanced thermal monitoring via TS pin and die temperature sensing.
Communication with transmitters occurs through open-drain COMx pins (COM1/COM2/COMA/COMB) using ASK-modulated packets; host control uses I²C (SCL/SDA) with interrupt signaling via INT pin. The device supports active-low EN shutdown and active-high EOC termination, enabling precise charge cycle management in battery-powered systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Wireless Standard Support | WPC v1.2.4 Baseline Power Profile (BPP) and PMA SR1 compatible - enables interoperability with both Qi-certified and Power Matters Alliance infrastructure. |
| Output Voltage Range | 4.5 V to 5.5 V programmable via external resistor divider on VOSET - allows precise matching to Li-ion/Li-poly battery charging requirements. |
| Peak DC-to-DC Efficiency | 82% with P9038-R transmitter - minimizes thermal load in space-constrained wearable and portable designs. |
| Operating Temperature | 0°C to +85°C ambient - validated for consumer electronics and Class II medical accessories without derating. |
| Over-Voltage Protection | 12 V DC clamp on VRECT with 1 V hysteresis - eliminates need for external TVS diodes or bulk capacitors in rectifier stage. |
| Current Limit Range | Programmable via ILIM pin (0.5 A to 1.2 A typical) - enables safe operation across varying coil coupling and load conditions. |
| Package | 52-ball WLCSP (2.64 × 3.94 mm, 0.4 mm pitch, AHG52 marking) - optimized for ultra-thin form factors with minimal PCB footprint. |
Pinout & Package
Package: 52-ball Wafer-Level Chip Scale Package (WLCSP), marked "AHG52", dimensions 2.64 mm × 3.94 mm, 0.4 mm ball pitch, rated for 0°C to +85°C ambient operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| AC1 / AC2 | AC Input Pair | Connects to resonant tank (Rx coil + CS capacitor); dual-input architecture enables balanced rectification and improved FOD sensitivity. |
| COM1 / COM2 / COMA / COMB | Open-Drain Communication Output | Drive 47 nF capacitor to AC line for ASK modulation; COMA/COMB used only in PMA mode - configurable per protocol. |
| VRECT | Rectified Voltage Node | Internal synchronous rectifier output; connects to 22 µF ×2 + 0.1 µF bulk/decoupling caps; dynamically tracks load changes. |
| OUT (D1–D6) | Regulated DC Output | Delivers final 4.5–5.5 V supply; six parallel pins reduce IR drop and improve current sharing for ≥1 A loads. |
| VOSET / ILIM / RPPO / RPPG | Calibration Inputs | Analog-programmed pins for output voltage, current limit, and FOD offset/gain - enable system-level tuning without firmware update. |
| TS | Remote Temperature Sense Input | Accepts NTC thermistor network for external over-temperature shutdown - critical for safety-critical medical accessories. |
| INT / EN / EOC / SCL / SDA | Digital Control & Interface | INT signals faults (OV/OC/die temp >140°C); EN forces shutdown; EOC terminates power transfer; SCL/SDA support I²C register read/write. |
Key Features
| Feature | Design Value |
|---|---|
| Dual-protocol wireless reception | Single-chip support for WPC and PMA standards eliminates need for separate receivers in multi-standard accessories. |
| Patented over-voltage clamp | 12 V DC protection on VRECT removes requirement for external TVS diodes or high-voltage bulk capacitors - reduces BOM count and cost. |
| Embedded Cortex-M0 processor | Enables real-time FOD execution, dynamic parameter adjustment, and firmware-upgradable communication stack - no external MCU needed. |
| Programmable current limit | ILIM pin sets over-current threshold from 0.5 A to 1.2 A, allowing safe operation across variable coil alignment and coupling conditions. |
| Dedicated remote temperature sensing | TS pin interface supports NTC-based thermal monitoring of battery or enclosure - meets IEC 62368-1 thermal safety requirements. |
Applications
| Wireless Earbud Charging | Portable Medical Sensor |
|---|---|
|
Use Scenario: Compact earbuds requiring contactless charging inside sealed case with no exposed connectors. IC Role / Device Role / Timing Role: Wireless power receiver managing rectification, regulation, and FOD during charging cycles. Use Value: 82% peak efficiency and 52-WLCSP footprint enable full charging circuit integration within sub-10 mm height constraints. |
Use Scenario: Battery-powered wearable vital sign monitor worn continuously with daily wireless charging. IC Role / Device Role / Timing Role: Primary power conversion IC providing regulated 5 V supply while enforcing thermal and over-voltage safety limits. Use Value: Integrated TS pin and die temperature sensing meet IEC 62368-1 Class II thermal shutdown requirements without external sensors. |
| Tablet Accessory Dock | Digital Camera Battery Charger |
|
Use Scenario: Multi-device docking station supporting simultaneous charging of stylus and keyboard via single transmitter coil. IC Role / Device Role / Timing Role: Dual-mode receiver negotiating power delivery with WPC/PMA transmitters and reporting status via I²C. Use Value: VOSET and ILIM programmability allow one P9225-RAHGI design to support multiple accessory types with different voltage/current needs. |
Use Scenario: Compact external battery charger for DSLR/mirrorless cameras requiring fast, reliable wireless top-up between shoots. IC Role / Device Role / Timing Role: High-efficiency power receiver converting inductive energy into stable 5.0 V ±2% output for Li-ion charging ICs. Use Value: 4.5–5.5 V programmable output matches common camera battery pack voltages, eliminating need for post-regulation stages. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar wireless power receiver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MP-A21 (NXP Semiconductors) | WPC-only (v1.2.3), no PMA support; 48-QFN package; requires external MCU for FOD. | Limited to Qi-certified ecosystems; lacks dual-protocol flexibility and integrated processor. | Select when targeting WPC-only infrastructure and lower-cost QFN assembly is preferred over WLCSP miniaturization. |
| BQ51222 (Texas Instruments) | WPC v1.2.2 compliant; 40-WLCSP; no programmable VOSET/ILIM; fixed 5.0 V output; no TS pin. | Suitable only for fixed-voltage 5 W applications without remote thermal monitoring or field calibration. | Choose for cost-sensitive, single-voltage designs where FOD and thermal safety are handled externally. |
Compared with MP-A21 and BQ51222, the P9225-RAHGI offers unique dual-protocol operation, on-chip Cortex-M0 for autonomous FOD, and analog-programmable VOSET/ILIM/TS - making it the only option supporting field-tunable, safety-compliant 5 W wireless charging in ultra-compact WLCSP form factor.
Availability
P9225-RAHGI is available at Aetrix Electronics and suitable for wireless earbud charging, portable medical sensor powering, and tablet accessory dock applications requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant packaging.
Supply support for P9225-RAHGI 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 Corporation acquired Integrated Device Technology (IDT) in 2019 and now develops and manufactures high-performance analog, mixed-signal, and power management ICs for industrial, automotive, and consumer markets.
The P9225-RAHGI belongs to Renesas' wireless power receiver product line, designed specifically for compact, dual-standard, safety-certifiable 5 W charging in wearables, medical accessories, and portable electronics.
FAQ
What wireless charging standards does the P9225-RAHGI support?
The P9225-RAHGI supports WPC v1.2.4 Baseline Power Profile (BPP) and PMA SR1 standards. It operates in dual-mode, automatically detecting and negotiating with either WPC or PMA transmitters without external configuration. This capability is implemented in hardware and firmware within the embedded ARM® Cortex®-M0 core of the P9225-RAHGI, enabling seamless interoperability across global wireless charging infrastructures.
How is output voltage programmed on the P9225-RAHGI?
Output voltage on the P9225-RAHGI is set via the VOSET pin using an external resistor divider connected between VDD18 and GND, with VOSET tied to the center tap. The P9225-RAHGI supports 4.5 V to 5.5 V in 100 mV steps; for example, a 5.0 V output requires a 10 kΩ pull-up to VDD18. This analog programming method eliminates the need for I²C writes during power-up and ensures deterministic startup behavior in the P9225-RAHGI.
Does the P9225-RAHGI include over-voltage protection, and how does it work?
Yes, the P9225-RAHGI features a patented DC over-voltage protection clamp on the VRECT pin, triggering at 12 V with 1 V hysteresis. This internal clamp eliminates reliance on external TVS diodes or high-voltage bulk capacitors typically required in wireless receiver front-ends. The protection is active during all operating modes and is fully integrated into the P9225-RAHGI's synchronous rectifier and LDO architecture.
What is the role of the TS pin on the P9225-RAHGI?
The TS pin on the P9225-RAHGI provides dedicated remote temperature sensing input for external NTC thermistor networks. When used, it enables over-temperature shutdown independent of die temperature - critical for meeting IEC 62368-1 safety requirements in medical and wearable applications. If unused, TS must be pulled to VDD18 via a 10 kΩ resistor; leaving it floating is prohibited in the P9225-RAHGI design.
Can the P9225-RAHGI operate without an external microcontroller?
Yes, the P9225-RAHGI integrates a 32-bit ARM® Cortex®-M0 microprocessor that executes all protocol handling, FOD, thermal management, and calibration autonomously. An external MCU is optional and only required if custom host-level logic or non-standard packet extensions are needed. For standard WPC/PMA operation, the P9225-RAHGI functions fully standalone - a key differentiator from competing receivers like the BQ51222 or MP-A21.
P9225-RAHGI Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 52-UFBGA, WLCSP
- Packaging:
- Strip
- Product Status:
- Active
- Applications:
- Wireless Power Receiver
- Current - Supply:
- 3mA
- Voltage - Supply:
- 1.62V ~ 1.98V, 4.5V ~ 5.5V
- Operating Temperature:
- 0°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 52-WLCSP (2.64x3.94)
P9225-RAHGI FAQ
1.How can I place an order for P9225-RAHGI through Aetrix?
Please submit a Request for Quotation (RFQ) for P9225-RAHGI on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for P9225-RAHGI reliable?
The price and inventory of P9225-RAHGI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P9225-RAHGI is usually 5 days.
3.What payment methods are accepted for P9225-RAHGI?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P9225-RAHGI transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P9225-RAHGI?
P9225-RAHGI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P9225-RAHGI order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for P9225-RAHGI?
For technical support, including P9225-RAHGI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P9225-RAHGI requirements.
6.How does Aetrix verify that P9225-RAHGI is sourced from the original manufacturer or authorized distributors?
All P9225-RAHGI products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that P9225-RAHGI meets industry standards.
7.What is the process for return or replacement of P9225-RAHGI?
All P9225-RAHGI units undergo pre-shipment inspection (PSI). If there is an issue with P9225-RAHGI, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The P9225-RAHGI part is unused and in its original packaging.
Return procedure for P9225-RAHGI:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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