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Infineon Technologies WLC1115-68LQXQ
- Part No.:
- WLC1115-68LQXQ
- Manufacturer:
- Infineon Technologies
- Category:
- Power Management - Specialized
- Package:
- 68-UFQFN Exposed Pad
- Datasheet:
-
WLC1115-68LQXQ.pdf
- Description:
- WIRELESS CHARGING IC
- Quantity:
- Payment:
- Shipping:
Inventory:287
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Product details
Overview
WLC1115-68LQXQ from Infineon is a programmable 15W Qi2-compliant wireless power transmitter IC with integrated USB Type-C Power Delivery 3.1 controller, Arm® Cortex®-M0 MCU (48 MHz, 128KB Flash, 16KB RAM), and dual gate drivers for buck-boost and inverter stages. It supports MPP, EPP, and BPP protocols, operates from 4.5V–24V input, and delivers FOD via Q-factor, resonance frequency, and power-loss detection in smart charging pads and docking stations.
For engineers reviewing the WLC1115-68LQXQ datasheet, WLC1115-68LQXQ pinout, WLC1115-68LQXQ application, or WLC1115-68LQXQ equivalent, key selection criteria include Qi2 protocol stack support, integrated PD 3.1 + PPS, on-chip MCU programmability for FOD tuning, ASK/FSK bidirectional communication, and thermal protection across –40°C to +105°C.
Technical Context
The WLC1115 implements a full Qi2 transmitter stack-including MPP handshake, EPP negotiation, and BPP fallback-with hardware-accelerated ASK demodulation and FSK modulation. Its integrated USB-PD 3.1 controller handles source/sink role negotiation, PPS voltage control (20mV steps), and legacy protocol arbitration (QC 2.0/3.0, AFC).
On-die peripherals include an 8-bit SAR ADC (12-channel), dual current-sense amplifiers for inverter and buck-boost paths, four TCPWM blocks for precise gate timing, and a programmable I/O matrix supporting GPIO, UART, I²C, and SWD. All firmware execution occurs on the embedded Cortex-M0 with ROM-based boot loader.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Wireless Standard | Qi2 compliant: supports MPP, EPP, and BPP profiles with hardware ASK/FSK transceivers |
| USB-PD Support | USB PD 3.1 + PPS mode (20 mV resolution); backward compatible with QC 2.0/3.0 and AFC |
| MCU Core | Arm Cortex-M0 @ 48 MHz; 128 KB flash, 16 KB SRAM, 32 KB ROM for boot and stack |
| Input Voltage Range | 4.5 V to 24 V DC - enables direct integration with USB PD sources or wide-range DC adapters |
| Operating Temperature | –40°C to +105°C - qualified for industrial-grade embedded charging systems |
| Protection Features | OVP, OCP, OTP (via internal temp sensor + ADC), and multi-method FOD (Q-factor, resonance shift, power loss) |
| Communication Interfaces | I²C, UART, SWD - used for host configuration, debug, and real-time telemetry during power transfer |
Pinout & Package
WLC1115-68LQXQ is housed in an 8.0 mm × 8.0 mm × 0.65 mm, 68-pin QFN package (LD68B) with 5.7 mm × 5.7 mm exposed thermal pad. Pin functions are validated per Infineon datasheet Rev. *C (pp. 7–11).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN | Main DC input supply | Accepts 4.5–24 V; feeds internal LDOs and buck-boost controller |
| VBRG | Buck-boost regulator output | Provides regulated gate drive voltage (typically ~12 V) for high-side NFETs |
| HG1_0 / LG1_0 | Buck-boost half-bridge gate drivers | Drive external N-channel MOSFETs in buck-boost stage for VBRG regulation |
| HG2_0 / LG2_0 | Inverter full-bridge gate drivers | Drive external H-bridge MOSFETs to generate 100–205 kHz AC for Tx coil |
| ASK_P / ASK_N | ASK demodulator inputs | Differential receiver for Rx-to-Tx backscatter communication (Qi baseband) |
| CC1 / CC2 | USB-C CC line interface | Detect cable orientation and negotiate USB PD contracts with source |
| DP / DM | USB 2.0 data lines | Support USB enumeration and vendor-defined PD messaging |
| GPIOs (e.g., CSPO, CSNO) | Configurable digital I/O | Used for LED status, coil selection, or external FOD sensor interfacing |
Key Features
| Feature | Design Value |
|---|---|
| Integrated Qi2 transmitter stack | Hardware-accelerated MPP/EPP/BPP protocol handling eliminates need for external MCU or firmware licensing overhead |
| USB-PD 3.1 + PPS controller | Enables dynamic 3.3–21 V output at 20 mV steps-critical for adaptive voltage alignment with Rx battery management |
| On-chip Cortex-M0 with 128 KB flash | Allows field-upgradable FOD algorithms, custom coil tuning, and proprietary extension implementation without external memory |
| Dual gate driver sets | Eliminates need for discrete high-speed drivers; supports >15 W efficiency with optimized slew-rate control |
| Multi-method foreign object detection | Combines Q-factor monitoring, resonance frequency shift, and real-time power-loss calculation to meet Qi2 safety requirements |
Applications
| Wireless Charging Pad | Smart Speaker Docking Station |
|---|---|
Use Scenario: Surface-mounted Qi2 charging pad for smartphones and earbuds supporting MPP alignment magnets and EPP fast charging. IC Role / Device Role / Timing Role: Primary transmitter controller managing coil excitation, bidirectional communication, FOD, and USB-PD negotiation with wall adapter. Use Value: Enables <100 ms alignment detection via MPP, 15 W sustained power delivery, and automatic fallback to BPP for legacy devices. | Use Scenario: Integrated charging dock inside smart speaker enclosure that powers both speaker battery and placed mobile device. IC Role / Device Role / Timing Role: Dual-role controller: manages speaker's internal battery charging via USB-PD sink mode while simultaneously acting as Qi2 transmitter. Use Value: Single-chip solution reduces BOM count by eliminating separate PD controller and wireless TX MCU; supports simultaneous power path management. |
| Furniture-Embedded Charger | Portable Multi-Device Hub |
Use Scenario: Wireless charging surface embedded in desk or nightstand with concealed coil and thermal management. IC Role / Device Role / Timing Role: Industrial-grade transmitter operating continuously at ambient temperatures up to +105°C with integrated OTP and OCP. Use Value: Extended temperature rating and robust FOD ensure safe operation under prolonged use and variable load conditions in unventilated enclosures. | Use Scenario: Compact travel hub accepting USB-C PD input and delivering power to laptop (PD), phone (Qi2), and accessories (USB-A). IC Role / Device Role / Timing Role: Coordinated power manager: negotiates optimal PD contract, regulates buck-boost stage, and drives inverter-all synchronized by single Cortex-M0. Use Value: Eliminates inter-chip timing skew; enables coordinated thermal throttling across PD and wireless subsystems using shared ADC and temp sensor. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar wireless transmitter with integrated USB-PD applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STWBC2-HP | Qi1.3-only; no Qi2/MPP support; separate PD controller required; 32-bit ARM Cortex-M0+ (no ROM) | Lacks magnetic alignment and extended power profile; requires external PD IC and firmware stack porting | Choose only if Qi2 compliance is not required and legacy Qi1.3 ecosystem is already established |
| MP-A21 Reference IC (Renesas) | Reference design IC-not production-orderable; no integrated PD controller; relies on external MCU for stack | Intended for evaluation only; lacks production qualification, security features, and USB-C CC logic | Not suitable for volume production; limited to prototyping where full stack development is feasible |
Compared with STWBC2-HP and MP-A21, WLC1115-68LQXQ uniquely integrates Qi2 protocol acceleration, USB-PD 3.1 + PPS, and production-ready firmware infrastructure-reducing time-to-market by eliminating external PD ICs, stack licensing, and MCU bring-up effort.
Availability
WLC1115-68LQXQ is available at Aetrix Electronics and suitable for wireless charging pads, smart speaker docks, furniture-integrated chargers, and portable multi-device hubs requiring stable component supply, long-term lifecycle support, and full Qi2 certification readiness.
Supply support for WLC1115-68LQXQ 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
Infineon Technologies is a German semiconductor manufacturer specializing in power management, automotive ICs, and wireless charging solutions, with global R&D and manufacturing infrastructure.
WLC1115 belongs to Infineon's Wireless Charging IC product line, designed specifically to accelerate Qi2-compliant transmitter development with integrated MCU, PD, and analog front-end-targeting consumer, industrial, and automotive accessory markets.
FAQ
Does WLC1115-68LQXQ require external firmware programming to operate as a Qi2 transmitter?
No. The device ships with factory-programmed ROM containing the certified Qi2 baseband MAC/PHY, ASK/FSK transceivers, and essential stack layers. Customers can optionally deploy custom application code in flash memory for FOD tuning or proprietary extensions-but basic Qi2 operation is fully functional out-of-box.
What is the role of the integrated buck-boost controller in WLC1115-68LQXQ?
The integrated buck-boost controller regulates VBRG-the gate drive supply for inverter MOSFETs-to a stable ~12 V. This ensures consistent switching performance across wide input voltages (4.5–24 V), enabling reliable 15 W power transfer even when powered from variable USB PD sources or DC adapters.
Can WLC1115-68LQXQ support simultaneous USB-PD sink and wireless transmitter operation?
Yes. The IC supports concurrent USB-PD sink mode (e.g., receiving power from a wall adapter) and wireless transmitter operation (e.g., powering a placed smartphone). Its internal power routing and Cortex-M0 scheduler coordinate voltage regulation, thermal management, and protocol timing between both domains.
Is external crystal required for WLC1115-68LQXQ clock generation?
No. The device uses an internal high-precision main oscillator (HIMO) for system clock (48 MHz) and USB-PD timing. An external crystal is optional and only needed if sub-100 ppm frequency accuracy is required for specialized ASK/FSK timing margins beyond Qi2 specification limits.
WLC1115-68LQXQ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- 68-UFQFN Exposed Pad
- Packaging:
- Tray
- Product Status:
- Active
- Applications:
- Wireless Power Transmitter
- Current - Supply:
- 87mA
- Voltage - Supply:
- 4.5V ~ 24V
- Operating Temperature:
- -40°C ~ 105°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- PG-VQFN-68
WLC1115-68LQXQ FAQ
1.How can I place an order for WLC1115-68LQXQ through Aetrix?
Please submit a Request for Quotation (RFQ) for WLC1115-68LQXQ 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 WLC1115-68LQXQ reliable?
The price and inventory of WLC1115-68LQXQ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for WLC1115-68LQXQ is usually 5 days.
3.What payment methods are accepted for WLC1115-68LQXQ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for WLC1115-68LQXQ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for WLC1115-68LQXQ?
WLC1115-68LQXQ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your WLC1115-68LQXQ 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 WLC1115-68LQXQ?
For technical support, including WLC1115-68LQXQ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your WLC1115-68LQXQ requirements.
6.How does Aetrix verify that WLC1115-68LQXQ is sourced from the original manufacturer or authorized distributors?
All WLC1115-68LQXQ 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 WLC1115-68LQXQ meets industry standards.
7.What is the process for return or replacement of WLC1115-68LQXQ?
All WLC1115-68LQXQ units undergo pre-shipment inspection (PSI). If there is an issue with WLC1115-68LQXQ, 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 WLC1115-68LQXQ part is unused and in its original packaging.
Return procedure for WLC1115-68LQXQ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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