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Renesas P9035-0NTGI8
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- Part No.:
- P9035-0NTGI8
- Manufacturer:
- Renesas
- Category:
- Power Management - Specialized
- Package:
- 48-WFQFN Exposed Pad
- Datasheet:
-
P9035-0NTGI8.pdf
- Description:
- IC WIRELESS TRANSMITTER 48QFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,723
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Product details
Overview
P9035-0NTGI8 from Integrated Device Technology is a WPC 1.1-compliant single-chip 5V wireless power transmitter IC for A5/A11 reference designs, featuring integrated half-bridge inverter, 110–205 kHz frequency-modulated full-bridge control, I²C interface, and proprietary back-channel communication with IDTP9020 receivers. It delivers up to 5W output in Qi-compliant base stations with built-in Foreign Object Detection (FOD), over-temperature shutdown at 140°C, and closed-loop power transfer.
For engineers reviewing the P9035-0NTGI8 datasheet, P9035-0NTGI8 pinout, P9035-0NTGI8 application, or P9035-0NTGI8 equivalent, this page provides verified technical context on WPC-compliant transmitter architecture, real-time demodulation of receiver packets, GPIO-controlled LED indicators, thermal protection thresholds, and 48-pin TQFN package implementation details.
Technical Context
The P9035-0NTGI8 implements a hybrid full-bridge inverter using its internal half-bridge plus external MOSFETs, operating strictly within the WPC-defined 110–205 kHz switching range at fixed 50% duty cycle during ping/identification phases. Its MCU executes OTP-programmed firmware to decode WPC message packets-including Signal Strength (0x01), Identification (0x71), and Control Error (0x03)-via analog HPF input and integrated demodulator.
It integrates an 8-channel 12-bit ADC sampling at 62.5 kSPS for coil current (ISNS), voltage sensing (VOSNS), and temperature monitoring; supports I²C master/slave operation up to 400 kHz; and uses a 40 MHz internal RC oscillator for timing-critical packet response windows defined by WPC specification v1.1.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage | 5V ±5% - powers all internal circuitry and inverter stages; requires seven tied 5V supply pins (5V_A–5V_G) with decoupling per pin. |
| Switching Frequency Range | 110–205 kHz - WPC-compliant full-bridge modulation range; controls power transfer level without duty-cycle variation in standard mode. |
| Inverter RDS(on) | 175 mΩ (HS), 130 mΩ (LS) - defines conduction loss in integrated half-bridge; external FETs complete full-bridge topology. |
| I²C Interface Speed | Up to 400 kHz - enables host microcontroller configuration of operating modes, LED outputs, and fault reporting. |
| ADC Resolution & Channels | 12-bit, 8-channel - monitors ISNS, VOSNS, temperature, and auxiliary analog signals for FOD and thermal management. |
| Thermal Shutdown Threshold | 140°C rising / 110°C falling - hysteresis prevents oscillation; triggers automatic power-down during sustained overload or poor heatsinking. |
| GPIO Count | 7 pins (GPIO_0–GPIO_6) - configurable as open-drain LED drivers or general-purpose I/O; supports status indication and buzzer control. |
Pinout & Package
Package: 6 mm × 6 mm × 0.75 mm, 48-pin TQFN (NTG48) with exposed thermal pad (EP) requiring connection to GND via 5×5 PTH via array for optimal θJB = 0.75°C/W performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 5V_A–5V_G (Pins 15,16,18,19,24,25,37–39) | Power Input Bank | All seven pins must be shorted externally; each requires dedicated ceramic decoupling (0.1 µF + 1 µF typical); supplies inverter, LDO, and digital logic. |
| SW (Pins 33–35) | Inverter Switch Node | Three pins paralleled to drive TX coil; connects to series resonant capacitor (400 nF) and A5/A11 coil (6.5 µH); high di/dt path requiring low-inductance layout. |
| ISNS (Pin 40) | Current Sense Output | Analog voltage proportional to coil current; feeds ADC for OCP (trip: 4–7 A) and FOD algorithms; referenced to PGND. |
| HPF (Pin 41) | Demodulator Input | Receives filtered back-channel signal from receiver; enables WPC packet recovery without external analog front-end components. |
| SCL/SDA (Pins 8–9) | I²C Interface | Standard bidirectional bus; supports EEPROM loading (100/300 kHz) and runtime configuration (up to 400 kHz); 5V-tolerant inputs. |
| RESET (Pin 12) | Active-High Reset | Asynchronous reset; requires 1 µF cap to LDO5V and 100 kΩ pull-down; initiates boot sequence and register reload. |
| EN̅ (Pin 13) | Active-Low Enable | Pulling high suspends device into <20 mA standby; tying low enables full operation; critical for system-level power sequencing. |
Key Features
| Feature | Design Value |
|---|---|
| WPC v1.1 Compliance Engine | Hardware-accelerated demodulation and decoding of all mandatory packets (0x01, 0x71, 0x03, 0x04) with strict timing enforcement per specification. |
| Proprietary Back-Channel | Enables secure handshake and extended command sets exclusively with IDT receivers (e.g., IDTP9020), beyond baseline WPC requirements. |
| Integrated Protection Suite | Combines cycle-by-cycle over-current (4–7 A), thermal shutdown (140°C), and multi-layer FOD-reducing BOM count vs. discrete protection ICs. |
| Configurable LED Indicators | Three open-drain GPIOs (LEDA/LEDB/buzzer) driven directly from MCU; support status feedback without external drivers or current-limiting resistors. |
| Single-Supply 5V Architecture | Eliminates need for auxiliary voltage rails; internal 2.5V LDO (LDO2P5V) powers MCU and analog blocks-unavailable for external loading. |
Applications
| Wireless Charging Base Station | Qi-Certified Desktop Transmitter |
|---|---|
|
Use Scenario: Embedded in consumer-grade desktop chargers delivering 5W to smartphones and wearables compliant with WPC A5/A11 coil geometry. IC Role / Device Role / Timing Role: Primary controller managing full-bridge inverter switching, WPC packet exchange, and real-time power regulation via 110–205 kHz frequency sweep. Use Value: Reduces bill-of-materials by integrating half-bridge, demodulator, MCU, and protection logic-enabling compact, cost-optimized designs meeting Qi certification test plans. |
Use Scenario: Integrated into OEM-branded charging pads with status LEDs and thermal management for continuous-duty operation. IC Role / Device Role / Timing Role: System-on-chip transmitter managing selection/ping/ID/config/power-transfer state machine with <100 ms response latency to receiver control packets. Use Value: Enables rapid time-to-market for Qi-certified products via reference schematics and pre-validated firmware stack-no custom protocol stack development required. |
| Multi-Coil Charging Platform | IDT Ecosystem Transmitter |
|
Use Scenario: Used in dual-coil transmitters supporting simultaneous charging of phone + earbuds, with independent coil control. IC Role / Device Role / Timing Role: Controls one full-bridge channel; multiple P9035-0NTGI8 units coordinated via host MCU to manage spatial power distribution. Use Value: Supports scalable multi-transmitter architectures with synchronized pinging and independent FOD per coil-eliminating cross-talk interference. |
Use Scenario: Paired exclusively with IDTP9020 receiver in high-security applications requiring encrypted authentication before power delivery. IC Role / Device Role / Timing Role: Implements 64-bit security engine and proprietary back-channel handshake-enabling receiver identity verification prior to power ramp-up. Use Value: Provides hardware-enforced security layer not available in generic WPC-compliant ICs, mitigating unauthorized receiver spoofing attacks. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar wireless power transmitter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MP-A21 (MediaTek) | Supports WPC v1.2.2; includes integrated drivers for external full-bridge; lacks proprietary back-channel with IDT receivers. | Targeted at Android OEMs requiring newer spec compliance; no native interoperability with IDTP9020-based receivers. | Select when upgrading to v1.2.2 features (e.g., extended power profiles) and when receiver ecosystem is non-IDT. |
| BQ500212A (Texas Instruments) | WPC v1.1 compliant; uses external MCU for packet handling; requires discrete demodulator and protection circuits. | Suitable for designs retaining legacy host processors; higher BOM count and PCB area due to external component dependencies. | Choose when existing platform uses TI's BQ51013B receiver or when design flexibility outweighs integration benefits. |
Compared with MP-A21 and BQ500212A, the P9035-0NTGI8 delivers higher integration density, eliminates external demodulation components, and enables faster time-to-certification for Qi A5/A11 systems-but requires pairing with IDT receivers to leverage proprietary security and back-channel features.
Availability
P9035-0NTGI8 is available at Aetrix Electronics and suitable for wireless charging base stations, Qi-certified desktop transmitters, multi-coil charging platforms, and IDT ecosystem transmitters requiring stable component supply across production lifecycles.
Supply support for P9035-0NTGI8 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
Integrated Device Technology (IDT), now part of Renesas Electronics, is a fabless semiconductor company specializing in timing, memory interface, RF, and wireless power solutions for communications, computing, and consumer markets.
The P9035-0NTGI8 belongs to IDT's wireless power transmitter product line, designed specifically to accelerate Qi-compliant A5/A11 base station development with minimal external components and certified firmware stacks.
FAQ
What is the primary function of the P9035-0NTGI8 in a wireless charging system?
The P9035-0NTGI8 serves as the core WPC-compliant transmitter controller in Qi-certified base stations. It manages full-bridge inverter switching, demodulates and decodes receiver packets via HPF input, executes the four-phase WPC state machine (Selection, Ping, ID & Config, Power Transfer), and enforces protection including over-current and thermal shutdown. Its integration eliminates need for discrete demodulators, MCUs, or protection ICs in A5/A11 designs.
Does the P9035-0NTGI8 require an external microcontroller to operate?
No-the P9035-0NTGI8 contains an embedded 40 MHz MCU with OTP-programmed firmware that autonomously executes the entire WPC v1.1 state machine, including packet decoding, frequency modulation, and fault response. An external host is optional and used only for advanced configuration (e.g., LED behavior, debug logging) via I²C; standalone operation is fully supported with EN̅ tied low and RESET properly decoupled.
How does the P9035-0NTGI8 implement Foreign Object Detection (FOD)?
The P9035-0NTGI8 implements a proprietary multi-layer FOD algorithm using real-time analysis of coil current (ISNS), voltage (VOSNS), and temperature data sampled by its 12-bit ADC. It detects anomalies in power transfer efficiency and resonance characteristics indicative of metallic objects. While baseline FOD is enabled by default, advanced variants with enhanced sensitivity require firmware customization through IDT-and are not active in standard P9035-0NTGI8 shipments.
What are the critical layout requirements for the P9035-0NTGI8's SW and PGND pins?
The three SW pins (33–35) and multiple PGND pins (28–32, 43) must be routed with minimal loop area and maximum copper weight. SW traces require ≥10 mil width and direct connection to the series resonant capacitor and TX coil; PGND planes must be solid, unsplit, and stitched to the EP via ≥25 PTH vias (5×5 array). Separation between SW and PGND paths prevents noise coupling into ADC and HPF inputs-critical for reliable packet demodulation.
Can the P9035-0NTGI8 be used with non-IDT wireless power receivers?
Yes-the P9035-0NTGI8 is WPC v1.1-compliant and interoperates with any Qi-certified receiver (e.g., BQ51013B, STWBC-WA). However, proprietary features-including 64-bit encryption, extended command sets, and optimized back-channel communication-are only available when paired with IDT receivers like the IDTP9020. Standard power transfer, packet exchange, and protection functions remain fully operational with third-party receivers.
P9035-0NTGI8 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 48-WFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Applications:
- Wireless Power Transmitter
- Current - Supply:
- 20mA
- Voltage - Supply:
- 4.75V ~ 5.25V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 48-VFQFPN (6x6)
P9035-0NTGI8 FAQ
1.How can I place an order for P9035-0NTGI8 through Aetrix?
Please submit a Request for Quotation (RFQ) for P9035-0NTGI8 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 P9035-0NTGI8 reliable?
The price and inventory of P9035-0NTGI8 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P9035-0NTGI8 is usually 5 days.
3.What payment methods are accepted for P9035-0NTGI8?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P9035-0NTGI8 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P9035-0NTGI8?
P9035-0NTGI8 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P9035-0NTGI8 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 P9035-0NTGI8?
For technical support, including P9035-0NTGI8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P9035-0NTGI8 requirements.
6.How does Aetrix verify that P9035-0NTGI8 is sourced from the original manufacturer or authorized distributors?
All P9035-0NTGI8 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 P9035-0NTGI8 meets industry standards.
7.What is the process for return or replacement of P9035-0NTGI8?
All P9035-0NTGI8 units undergo pre-shipment inspection (PSI). If there is an issue with P9035-0NTGI8, 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 P9035-0NTGI8 part is unused and in its original packaging.
Return procedure for P9035-0NTGI8:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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