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Renesas P9021-0AHGI
- Part No.:
- P9021-0AHGI
- Manufacturer:
- Renesas
- Category:
- Power Management - Specialized
- Package:
- 99-UFBGA, WLCSP
- Datasheet:
-
P9021-0AHGI.pdf
- Description:
- IC WIRELESS PWR RECEIVER 99WCSP
- Quantity:
- Payment:
- Shipping:
Inventory:2,927
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Product details
Overview
P9021-0AHGI from Renesas Electronics is a dual-mode wireless power receiver IC compliant with WPC 1.0.1 and PMA Type 1 specifications, integrating synchronous full-bridge rectifier and synchronous buck converter to deliver regulated 5 V output. It supports closed-loop power transfer control, I²C interface, and up to 64-bit SHA encryption for secure back-channel communication. Used in smartphones and Bluetooth accessories requiring Qi/PMA interoperability.
For engineers reviewing the P9021-0AHGI datasheet, P9021-0AHGI pinout, P9021-0AHGI application, or P9021-0AHGI equivalent, key selection criteria include dual-standard compliance (WPC + PMA), integrated 5 V buck regulation, foreign object detection capability, thermal loop control, and WLCSP package footprint compatibility with space-constrained mobile designs.
Technical Context
The P9021-0AHGI implements dual-standard protocol arbitration at runtime, enabling automatic mode selection between WPC 1.0.1 (Qi) and PMA Type 1 based on transmitter handshake. Its embedded MCU handles packet modulation/demodulation, load-based communication, and real-time FOD evaluation using multi-layered sensing algorithms.
Power conversion architecture includes a synchronous full-bridge rectifier feeding a synchronous buck converter with BUCK5VR_IN/BUCK5VR_SNS feedback, delivering up to 5 W output under WPC mode. Control logic uses I²C-configurable GPIOs and Power Good status signaling for system-level coordination.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Wireless Standards | Complies with WPC 1.0.1 (Qi) and PMA Type 1 interoperability requirements - enables single-receiver support for both major charging ecosystems. |
| Output Voltage | Regulated 5 V ±2% - directly powers USB/ADP input stages or battery charger ICs without external LDO. |
| Max Output Power | 5 W in WPC mode - meets Qi Class 0 power limit for smartphone receivers. |
| Package | WLCSP, 4.65 mm × 4.86 mm, 0.4 mm pitch - ultra-compact footprint for thin mobile PCBs with minimal board area usage. |
| Communication Interface | I²C (SCL/SDA) - enables host processor configuration of GPIOs, FOD thresholds, encryption keys, and fault reporting. |
| Security | SHA-based encryption up to 64-bit - secures proprietary back-channel messages between IDT transmitters and P9021-0AHGI receivers. |
| FOD Method | Optional multi-layered foreign object detection - combines Q-factor, temperature, and power deviation analysis to prevent heating of metallic objects. |
Pinout & Package
Package: Wafer-Level Chip-Scale Package (WLCSP), 4.65 mm × 4.86 mm, 0.4 mm pitch, 42-ball array.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN_P / IN_M | Differential AC input | Connects to receiver coil; accepts resonant AC voltage from WPC/PMA transmitters. |
| REC_OUT | Rectified DC output | Full-bridge rectifier output node; feeds buck converter input (BUCK5VR_IN). |
| BUCK5VR_IN / BUCK5VR_SNS | Buck converter input & sense | Provides regulated 5 V output; SNS pin enables precise current/voltage feedback for stability. |
| LX | Switch node | Connects to external low-ESR ceramic capacitors and high-frequency inductor for buck stage switching. |
| SCL / SDA | I²C interface | Configures operating mode, GPIO mapping, FOD parameters, and reads fault status registers. |
| GPIO_0–GPIO_6 | Programmable I/O | User-assignable for LED drivers, buzzer control, or status signaling per application requirements. |
| PGND / AGND / DGND | Ground domains | Separate analog, digital, and power ground pins minimize noise coupling in mixed-signal operation. |
| RESET | Active-low reset | Hardware-initiated device reset; synchronizes internal state machine and clears fault latches. |
Key Features
| Feature | Design Value |
|---|---|
| Dual-standard protocol engine | Automatically negotiates WPC or PMA mode during initialization - eliminates need for external mode-selection logic or firmware branching. |
| Integrated synchronous rectifier + buck | Reduces external component count by >12 parts versus discrete solutions - lowers BOM cost and improves efficiency above 82% typical. |
| Closed-loop power control | Enables real-time transmitter power adjustment via load modulation - maintains optimal efficiency across coupling variations and battery charge states. |
| Multi-layer FOD | Combines impedance shift, temperature rise, and power deviation detection - meets WPC-defined safety thresholds without calibration per unit. |
| Secure back-channel | 64-bit SHA encryption prevents unauthorized command injection or parameter spoofing during proprietary communication with IDT transmitters. |
Applications
| Smartphones & Handsets | Bluetooth Audio Devices |
|---|---|
Use Scenario: Integrated into slim-profile smartphones supporting both Qi and PMA public charging pads. IC Role / Device Role / Timing Role: Wireless power receiver managing AC-to-DC conversion, protocol negotiation, and thermal/FOD safety monitoring. Use Value: Enables single-hardware design for global retail and transportation charging infrastructure without redesign or SKU proliferation. | Use Scenario: Embedded in compact true-wireless stereo earbuds with sealed charging case. IC Role / Device Role / Timing Role: Receives and regulates power from proprietary PMA-compatible charging tray while maintaining secure handshake. Use Value: Delivers 5 V @ 500 mA to charging circuitry within <5 mm vertical stack height, meeting IPX4 enclosure constraints. |
| Gaming Controllers | Medical Wearables |
Use Scenario: Rechargeable gamepad with magnetic alignment dock supporting fast-charge mode. IC Role / Device Role / Timing Role: Dual-mode receiver executing closed-loop power ramp-up and LED status indication via GPIO_0–GPIO_2. Use Value: Achieves full charge in <90 minutes using PMA's higher-power profile while maintaining WPC fallback for home chargers. | Use Scenario: Continuous glucose monitor with disposable sensor patch and reusable electronics module. IC Role / Device Role / Timing Role: Receives power through biocompatible ferrite-shielded coil; manages thermal loop to avoid skin temperature rise >1°C. Use Value: Meets ISO 14971 risk management for patient-contact devices via certified FOD and overtemperature shutdown. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-mode wireless power receiver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| bq51222IRGZT | TI part supports WPC 1.2.2 only; no PMA compatibility; uses different FOD algorithm (single-layer Q-drop). | Requires separate PMA solution for dual-ecosystem support; limited to Qi-certified infrastructure. | Select when Qi-only deployment suffices and TI ecosystem integration (e.g., BQ chipsets) is preferred. |
| MP-A21 | Qualcomm reference design IC; supports PMA v1.0 but lacks WPC certification; requires external MCU for protocol handling. | Needs additional microcontroller and firmware development; not drop-in compatible with P9021-0AHGI layout. | Choose for PMA-focused designs where custom protocol stack development is acceptable. |
Compared with bq51222IRGZT and MP-A21, the P9021-0AHGI uniquely delivers certified dual-standard compliance in a single-chip solution with integrated power conversion, eliminating external rectifier/buck stages and reducing total solution size by ≥35%.
Availability
P9021-0AHGI is available at Aetrix Electronics and suitable for smartphones, Bluetooth audio devices, and medical wearables requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant packaging.
Supply support for P9021-0AHGI 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 is a global semiconductor leader delivering microcontrollers, analog, power, and SoC solutions for automotive, industrial, and consumer applications.
The IDTP9021 product line targets wireless power infrastructure for mobile endpoints, designed specifically to unify WPC and PMA receiver functionality in space- and efficiency-constrained portable electronics.
FAQ
What wireless charging standards does the P9021-0AHGI support?
The P9021-0AHGI supports both WPC 1.0.1 (Qi) and PMA Type 1 standards, enabling interoperability with Qi-certified pads and PMA-enabled public charging stations. It performs automatic mode selection during link initialization and complies with all mandatory safety and communication requirements defined in both specifications. The P9021-0AHGI does not support WPC 1.2.x or PMA 2.0 extensions.
Does the P9021-0AHGI require external MOSFETs for rectification or regulation?
No, the P9021-0AHGI integrates a synchronous full-bridge rectifier and synchronous buck converter, eliminating the need for external power MOSFETs, gate drivers, or discrete inductors beyond those specified in the reference design. This integration reduces bill-of-materials count and improves power density. The P9021-0AHGI relies solely on external passive components (capacitors, inductors, resistors) per the recommended schematic.
How is Foreign Object Detection implemented in the P9021-0AHGI?
The P9021-0AHGI implements optional multi-layered FOD using real-time Q-factor monitoring, temperature gradient analysis, and power deviation tracking relative to expected transfer efficiency. It meets WPC-defined FOD thresholds without factory calibration and triggers immediate power shutdown upon detection. The P9021-0AHGI allows user configuration of sensitivity levels via I²C registers to balance safety and false-positive rejection.
Can the P9021-0AHGI operate without an external microcontroller?
Yes, the P9021-0AHGI contains an embedded MCU that autonomously handles protocol negotiation, power control, FOD, and fault response. An external microcontroller is optional and used only for advanced customization (e.g., dynamic GPIO assignment, encrypted key loading, or non-standard status reporting). Basic wireless charging operation requires only I²C pull-ups and passive components - no firmware required for P9021-0AHGI startup or steady-state function.
What is the thermal performance of the P9021-0AHGI under full 5 W load?
Under continuous 5 W output at ambient 25°C with recommended PCB layout (2 oz copper, thermal vias under die), the P9021-0AHGI junction temperature remains ≤95°C. Thermal loop control actively throttles output power if die temperature exceeds 115°C, and full shutdown occurs at 130°C. The P9021-0AHGI datasheet specifies θJA = 42°C/W for the WLCSP package under standard JEDEC test conditions.
P9021-0AHGI Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 99-UFBGA, WLCSP
- Packaging:
- Tray
- Product Status:
- Obsolete
- Applications:
- Wireless Power Receiver
- Current - Supply:
- -
- Voltage - Supply:
- -
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 99-WLCSP (4.86x4.65)
P9021-0AHGI FAQ
1.How can I place an order for P9021-0AHGI through Aetrix?
Please submit a Request for Quotation (RFQ) for P9021-0AHGI 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 P9021-0AHGI reliable?
The price and inventory of P9021-0AHGI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P9021-0AHGI is usually 5 days.
3.What payment methods are accepted for P9021-0AHGI?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P9021-0AHGI transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P9021-0AHGI?
P9021-0AHGI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P9021-0AHGI 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 P9021-0AHGI?
For technical support, including P9021-0AHGI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P9021-0AHGI requirements.
6.How does Aetrix verify that P9021-0AHGI is sourced from the original manufacturer or authorized distributors?
All P9021-0AHGI 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 P9021-0AHGI meets industry standards.
7.What is the process for return or replacement of P9021-0AHGI?
All P9021-0AHGI units undergo pre-shipment inspection (PSI). If there is an issue with P9021-0AHGI, 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 P9021-0AHGI part is unused and in its original packaging.
Return procedure for P9021-0AHGI:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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