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Renesas P9243-GBNDGI
- Part No.:
- P9243-GBNDGI
- Manufacturer:
- Renesas
- Category:
- Power Management - Specialized
- Package:
- 48-VFQFN Exposed Pad
- Datasheet:
-
P9243-GBNDGI.pdf
- Description:
- IC TRANSMITTER 48VFQFPN
- Quantity:
- Payment:
- Shipping:
Inventory:4,700
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Product details
Overview
P9243-GBNDGI from Renesas Electronics is a WPC-1.2.4–compliant wireless power transmitter IC supporting up to 15W output, integrated 32-bit ARM® Cortex®-M0 processor, and fixed 127.7kHz carrier frequency for MP-A11 coil configuration. It delivers programmable foreign object detection (FOD), simultaneous voltage/current demodulation for WPC communication, and drives external full-bridge MOSFETs in smartphone fast-charging pads.
For engineers reviewing the P9243-GBNDGI datasheet, P9243-GBNDGI pinout, P9243-GBNDGI application, or P9243-GBNDGI equivalent, key selection considerations include its 48-VFQFPN package, 5V–19V input range, I²C interface for real-time telemetry, and mandatory external flash memory for application firmware deployment.
Technical Context
The P9243-GBNDGI implements a dual-half-bridge gate driver architecture with independent high-side (GH_BRG1/GH_BRG2) and low-side (GL_BRG1/GL_BRG2) outputs, each supporting bootstrap-driven N-channel MOSFETs. Its embedded Cortex-M0 executes firmware that manages WPC-compliant power-transfer phases-Ping, Identification, Negotiation, Calibration, and Power Transfer-using ASK/FSK demodulation via VDEM1 and IDEMI pins.
It integrates a step-down regulator (SW_S output, 5.1V typical) and three LDOs (PREG, LDO33, LDO18) for internal biasing, while relying on external circuitry-including an 8MHz crystal (GPIO_B5/B6), thermistor network (TS), and external flash (GPIO_B0–B3)-to enable full system functionality and temperature-aware FOD.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Wireless Power Standard | WPC-1.2.4 compliant; supports BPP, EPP, iPhone 7.5W, Samsung Fast Charge protocols |
| Max Output Power | 15W at receiver side; requires external full-bridge power stage and MP-A11 coil |
| Carrier Frequency | Fixed 127.7kHz operation; enabled by external 8MHz crystal and internal PLL |
| Input Voltage Range | 5V to 19V; includes under-voltage lockout (UVLO) at 3.4V rising / 3.0V falling |
| Processor Core | 32-bit ARM® Cortex®-M0; executes application firmware stored in external SPI flash memory |
| Operating Temperature | −40°C to +85°C ambient; junction rated to +125°C with thermal shutdown protection |
| FOD Method | Q-factor detection during Ping phase and power-difference analysis during Power Transfer phase |
Pinout & Package
The P9243-GBNDGI is housed in a lead-free, RoHS-compliant 48-VFQFPN package (6 mm × 6 mm, 0.5 mm pitch) with exposed thermal pad (EP) for enhanced heat dissipation. All GND pins (GND, GND1, GND2, GND3) and EP must be connected to a common ground plane.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| EN | Active-low enable input | Drives device into 25µA shutdown mode when logic HIGH; required for power sequencing control |
| VIN | Main power input | Accepts 5V–19V supply; decoupled with 10µF ceramic capacitor to GND |
| SW_S | Step-down regulator switch node | Connects to 4.7µH inductor; generates internal 5.1V bias rail (PREG) |
| VDEM1 / IDEMI | ASK demodulation inputs | Decode receiver communication packets via coil voltage (VDEM1) and current (IDEMI) envelope detection |
| GH_BRG1 / GL_BRG1 GH_BRG2 / GL_BRG2 |
Full-bridge gate drivers | Drive external N-channel MOSFETs in two independent half-bridges; require series 22Ω gate resistors |
| GPIO_B0–B3 | SPI flash interface | Enable (B0), clock (B1), data out (B2), data in (B3); mandatory for loading application firmware |
| TS | Remote temperature sense input | Connects to NTC thermistor network; triggers over-temperature shutdown if die exceeds +125°C |
Key Features
| Feature | Design Value |
|---|---|
| Simultaneous ASK demodulation | Voltage (VDEM1) and current (IDEMI) envelope detection enables robust WPC packet decoding under load variation |
| Programmable FOD thresholds | User-configurable Q-factor and power-difference detection limits via firmware, enabling tuning for pad geometry and coil design |
| Dedicated remote temperature sensing | TS pin accepts NTC thermistor network for accurate thermal monitoring beyond die temperature |
| Integrated current sense amplifier | ISNS_OUT provides amplified, offset-compensated current sense signal (±3.5% accuracy at 1.25A) for closed-loop regulation |
| I²C interface (GPIO_A0/A1) | Enables host MCU to read real-time telemetry (voltage, current, frequency, fault status) and configure operating parameters |
| LED pattern control (LED1/LED2) | Open-drain outputs support user-defined charging status indicators without external drivers |
Applications
| BPP/EPP Wireless Charging Pad | iPhone 7.5W Charging Station |
|---|---|
Use Scenario: Consumer-grade desktop wireless charger supporting both legacy (BPP) and extended (EPP) power profiles. IC Role / Device Role / Timing Role: Primary transmitter controller managing coil excitation, WPC handshake, feedback-based power regulation, and FOD. Use Value: Delivers interoperable 5W/7.5W/10W/15W charging across WPC-certified receivers using single hardware platform and firmware update. |
Use Scenario: Compact travel charger optimized for Apple devices requiring precise 7.5W Qi-compliant delivery. IC Role / Device Role / Timing Role: Transmitter SoC executing Apple-specific negotiation sequences and maintaining tight 127.7kHz carrier stability during variable load conditions. Use Value: Achieves certified 7.5W output with <1% frequency deviation and adaptive FOD sensitivity tuned for small-form-factor pads. |
| Samsung Fast Charging Pad | After-Market Automotive Wireless Charger |
Use Scenario: High-efficiency vehicle-mounted charger supporting Samsung Adaptive Fast Charging protocol. IC Role / Device Role / Timing Role: Transmitter controller implementing proprietary voltage/frequency modulation schemes and USB D+/D− handshake via GPIO_A5/A7/GPIO_B8. Use Value: Enables 9V/12V fast charging modes with real-time current/voltage telemetry over I²C for dashboard integration. |
Use Scenario: Dashboard-integrated wireless charging module with thermal management for cabin environments. IC Role / Device Role / Timing Role: Core transmitter IC coordinating buck regulator enable (GPIO_B4), external temperature sensing (TS), and LED status (LED1/LED2) under wide-temperature (-40°C to +85°C) operation. Use Value: Maintains safe operation and FOD reliability across automotive thermal transients using dedicated NTC network and shutdown thresholds. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar wireless power transmitter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STWBC2-HP | Integrated 32-bit ARM Cortex-M0, but uses internal flash; no external SPI flash dependency; supports WPC 1.2.4 and PMA | Eliminates external memory BOM and layout complexity; lacks GPIO flexibility for custom FOD tuning | Select when minimizing external components and prioritizing rapid time-to-market over field-upgradable firmware |
| MP-A21 Transmitter IC (e.g., IDT P9221-R) | Supports MP-A21 coil standard (130–205kHz), not MP-A11; different Q-decay measurement method and FOD algorithm | Targets higher-power (>15W) and multi-coil applications; incompatible with P9243-GBNDGI's fixed 127.7kHz timing and MP-A11 coil layout | Select only when redesigning for MP-A21 compliance and higher-frequency resonant topologies |
Compared with STWBC2-HP and MP-A21–based transmitters, the P9243-GBNDGI offers unique trade-offs: mandatory external flash enables post-deployment firmware updates and custom FOD calibration, while its strict MP-A11/127.7kHz focus ensures optimal efficiency in compact smartphone charging pads-but requires careful attention to crystal stability and external memory routing.
Availability
P9243-GBNDGI is available at Aetrix Electronics and suitable for BPP/EPP wireless charging pads, iPhone 7.5W stations, Samsung Fast Charging accessories, and after-market automotive wireless chargers requiring stable component supply and long-term lifecycle support.
Supply support for P9243-GBNDGI 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 connectivity solutions for automotive, industrial, and consumer markets.
The P9243-GBNDGI belongs to Renesas' wireless power transmitter SoC product line, engineered specifically for WPC-compliant, high-efficiency, firmware-customizable smartphone charging systems with integrated processing and multi-level safety monitoring.
FAQ
What is the role of external flash memory in the P9243-GBNDGI system?
The P9243-GBNDGI contains only a pre-programmed bootloader in internal ROM and requires external SPI flash memory (connected via GPIO_B0–B3) to store application firmware. This architecture allows field-upgradable features, custom FOD threshold tuning, and protocol extensions without hardware changes. Without external flash, the P9243-GBNDGI cannot execute power transfer or enter active mode.
Does the P9243-GBNDGI support both WPC BPP and EPP modes simultaneously?
Yes, the P9243-GBNDGI supports both WPC Baseline Power Profile (BPP) and Extended Power Profile (EPP) modes within a single firmware implementation. It automatically detects receiver capability during the Identification and Configuration Phase and adjusts output power, voltage, and communication parameters accordingly-enabling seamless interoperability across 5W, 7.5W, 10W, and 15W receivers without manual configuration.
How does the P9243-GBNDGI implement foreign object detection (FOD)?
The P9243-GBNDGI implements dual-stage FOD: first, Q-factor decay measurement during the Digital Ping phase using the QDEC pin; second, real-time power-difference analysis between transmitted and received power during the Power Transfer phase. Both methods are fully configurable via firmware, allowing optimization for specific coil designs, pad materials, and thermal conditions-critical for passing WPC certification tests.
What is the function of the TS pin on the P9243-GBNDGI?
The TS pin on the P9243-GBNDGI is a dedicated analog input for connecting an external NTC thermistor network. It enables remote temperature sensing beyond the die, allowing the P9243-GBNDGI to monitor coil or PCB temperature and trigger thermal shutdown before critical overheating occurs. This feature is essential for automotive and enclosed charging pad applications where ambient and component temperatures vary widely.
Can the P9243-GBNDGI operate without an external crystal?
No-the P9243-GBNDGI requires an external 8MHz crystal connected to GPIO_B5 and GPIO_B6 to achieve the precise 127.7kHz carrier frequency mandated by WPC MP-A11. The internal oscillator lacks the stability needed for compliant operation. Omitting the crystal or substituting with an RC oscillator will cause frequency drift, failed WPC handshakes, and potential certification failure.
P9243-GBNDGI Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 48-VFQFN Exposed Pad
- Packaging:
- Tray
- Product Status:
- Active
- Applications:
- Wireless Power Transmitter
- Current - Supply:
- 10mA
- Voltage - Supply:
- 5V ~ 19V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 48-VFQFPN (6x6)
P9243-GBNDGI FAQ
1.How can I place an order for P9243-GBNDGI through Aetrix?
Please submit a Request for Quotation (RFQ) for P9243-GBNDGI 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 P9243-GBNDGI reliable?
The price and inventory of P9243-GBNDGI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P9243-GBNDGI is usually 5 days.
3.What payment methods are accepted for P9243-GBNDGI?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P9243-GBNDGI transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P9243-GBNDGI?
P9243-GBNDGI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P9243-GBNDGI 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 P9243-GBNDGI?
For technical support, including P9243-GBNDGI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P9243-GBNDGI requirements.
6.How does Aetrix verify that P9243-GBNDGI is sourced from the original manufacturer or authorized distributors?
All P9243-GBNDGI 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 P9243-GBNDGI meets industry standards.
7.What is the process for return or replacement of P9243-GBNDGI?
All P9243-GBNDGI units undergo pre-shipment inspection (PSI). If there is an issue with P9243-GBNDGI, 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 P9243-GBNDGI part is unused and in its original packaging.
Return procedure for P9243-GBNDGI:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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