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Infineon Technologies WLC1150-68LQXQT
- Part No.:
- WLC1150-68LQXQT
- Manufacturer:
- Infineon Technologies
- Category:
- Power Management - Specialized
- Package:
- 68-UFQFN Exposed Pad
- Datasheet:
-
WLC1150-68LQXQT.pdf
- Description:
- WLC IC
- Quantity:
- Payment:
- Shipping:
Inventory:2,000
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Product details
Overview
WLC1150-68LQXQT from Infineon is a highly integrated 50W wireless power transmitter IC with embedded Arm® Cortex®-M0 MCU (44 MHz, 128 KB Flash, 16 KB RAM), integrated USB Type-C PD 3.1 controller, buck-boost regulator (4.5–24 V input), and dual-stage inverter gate drivers. It enables proprietary high-power charging and Qi v1.3.x EPP/BPP compliance in single- or dual-stage topologies for industrial and consumer pads, docking stations, and robotics.
For engineers reviewing the WLC1150-68LQXQT datasheet, WLC1150-68LQXQT pinout, WLC1150-68LQXQT application, or WLC1150-68LQXQT equivalent, key selection considerations include integrated PD 3.1 + PPS support, on-chip FOD/thermal protection, programmable inverter control (frequency/duty/voltage), and 68-pin QFN package with exposed thermal pad for 50W thermal management.
Technical Context
The WLC1150 implements a dual-mode wireless power control architecture: baseband ASK/FSK modulation/demodulation for Rx-Tx communication and real-time inverter regulation via PWM logic, frequency sweep, and variable bridge voltage. Its integrated buck-boost controller eliminates external DC-DC stages for 5–20 V USB PD or fixed DC inputs.
On-chip peripherals include an 8-bit SAR ADC for temperature sensing and current monitoring, four TCPWM blocks, four SCB interfaces (2×I²C, SPI, UART), and dedicated gate drivers supporting two half-bridge legs per stage. The MCU subsystem executes proprietary protocol stacks and Qi-compliant firmware with OPTIGA™ Trust Charge authentication over I²C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Max Output Power | 50 W using Infineon proprietary protocol; supports Qi EPP up to 15 W |
| Input Voltage Range | 4.5 V to 24 V - enables direct USB PD/PPS or 20 V DC input without front-end DC-DC converter |
| MCU Core | Arm® Cortex®-M0 @ 44 MHz - runs full wireless stack, FOD, thermal, and PD negotiation firmware |
| USB PD Compliance | USB PD 3.1 + PPS - delivers precise voltage/current control for adaptive charging |
| Thermal Range | −40 °C to +105 °C - qualified for extended industrial operation in enclosed charging pads |
| FOD Method | Adaptive foreign object detection - uses Q-factor, resonance frequency, and power loss analysis |
| Communication Interfaces | I²C (2 ports), UART, SPI - supports OPTIGA™ Trust Charge authentication and host configuration |
Pinout & Package
Package: 68-lead QFN (8.0 × 8.0 × 0.65 mm, LD68B, 5.7 × 5.7 mm EPAD) with thermally enhanced exposed pad for 50W dissipation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| HG1_0 / LG1_0 / HG2_0 / LG2_0 | High-/Low-side gate drivers (Stage 0) | Direct drive signals for first half-bridge pair; support slew-rate controlled NFET switching |
| HG1_1 / LG1_1 / HG2_1 / LG2_1 | High-/Low-side gate drivers (Stage 1) | Drive second half-bridge for dual-stage inverter topology; enable 50W with wide input range |
| VBRG / VBB_0 / VBB_1 | Bridge supply rails | Independent voltage domains for each inverter stage; regulated by internal buck-boost controller |
| ASK_P / ASK_N / ASK_DEMOD | ASK demodulator inputs & output | Differential analog front-end for Rx-to-Tx amplitude-shift keying signal decoding |
| CC1 / CC2 / DP / DM | USB Type-C CC & data lines | Full USB PD physical layer interface - handles SOP packet exchange, VCONN, and legacy protocol handshaking |
| TEMP_FB / GPIO12 / CLK_IN | Analog sense / configurable I/O | NTC thermistor feedback for thermal protection; multi-function pins for clock input or firmware debug |
Key Features
| Feature | Design Value |
|---|---|
| Integrated USB PD 3.1 + PPS controller | Eliminates external PD PHY and policy engine; enables dynamic 5–20 V/0–5 A negotiation with source adapters |
| Programmable inverter control | Real-time adjustment of frequency, duty cycle, and bridge voltage - optimizes efficiency across coil misalignment and load variation |
| On-chip buck controller for fan | Drives cooling fan directly from VBRG rail - maintains surface temperature during sustained 50W delivery without external regulators |
| Adaptive FOD with multi-parameter analysis | Combines Q-factor, resonance shift, and power loss metrics - reduces false positives vs. single-threshold methods |
| Configurable protection suite | OCP, OVP, OTP, and SCP implemented in hardware and firmware - ensures robust operation under fault conditions |
Applications
| Wireless Charging Pad (50W Proprietary) | Docking Station for Laptops/Tablets |
|---|---|
Use Scenario: High-power desktop charging pad delivering 50W to compatible receivers using Infineon's proprietary protocol. IC Role / Device Role / Timing Role: Primary controller managing inverter switching, FOD, thermal regulation, and USB PD negotiation with AC adapter. Use Value: Enables compact, fan-cooled design with no external DC-DC stage - improves system efficiency by >8% versus discrete PD + inverter solutions. | Use Scenario: Multi-device docking station providing simultaneous wired USB-C data/power and wireless 50W charging. IC Role / Device Role / Timing Role: Central wireless power manager coordinating PD negotiation, inverter control, and OPTIGA™ Trust Charge authentication for Qi EPP. Use Value: Single-chip integration reduces BOM count by 12 components and PCB area by 35% compared to dual-IC reference designs. |
| Industrial Robot Charging Base | Smart Furniture Integration |
Use Scenario: Autonomous mobile robot returning to embedded charging base for rapid 50W replenishment in factory environments. IC Role / Device Role / Timing Role: Robust transmitter controller with −40°C to +105°C operation, adaptive FOD for metal-rich surroundings, and vibration-tolerant ASK demodulation. Use Value: Maintains >92% end-to-end efficiency at full load while rejecting EMI from nearby motor drives and PLCs. | Use Scenario: Wireless charging surface embedded into desk or nightstand with concealed electronics and thermal management. IC Role / Device Role / Timing Role: Low-profile QFN-packaged transmitter IC with integrated buck-boost and fan control - enables <12 mm total height assembly. Use Value: Eliminates need for external heatsink or forced air - achieves passive thermal compliance under continuous 30W load. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar wireless transmitter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STWBC2-HP | Supports Qi EPP only (no proprietary 50W mode); requires external PD controller; 48-pin QFN | Limited to Qi-certified 15W systems; no native USB PD 3.1/PPS stack | Select when Qi compliance is mandatory and 50W proprietary mode is not required |
| MP-A21 Transmitter IC | Fixed-function ASIC (no MCU); no USB PD integration; relies on external microcontroller for protocol handling | Suitable only for cost-sensitive, low-feature wireless pads without PD or firmware customization | Select for simple BPP-only applications where firmware flexibility and PD integration are unnecessary |
Compared with STWBC2-HP and MP-A21, WLC1150-68LQXQT uniquely combines 50W proprietary power delivery, on-die USB PD 3.1+PPS, and programmable MCU control - enabling single-chip scalability from 15W Qi EPP to full 50W industrial charging without architecture change.
Availability
WLC1150-68LQXQT is available at Aetrix Electronics and suitable for wireless charging pads, industrial robot docking stations, and smart furniture requiring stable component supply, long-term lifecycle support, and qualification-grade thermal performance.
Supply support for WLC1150-68LQXQT 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 leader specializing in power management, automotive MCUs, and RF/wireless solutions, with global manufacturing and automotive-grade quality certification.
The WLC product line targets high-efficiency, high-power wireless charging systems - designed specifically to replace multi-chip transmitter solutions with fully integrated, firmware-programmable ICs for 15W–50W applications.
FAQ
Does WLC1150-68LQXQT require an external USB PD controller?
No. The IC integrates a full USB PD 3.1 controller with hardware PHY, policy engine, and firmware stack - supporting SOP packet exchange, VCONN, and PPS negotiation without external components. Only the Type-C receptacle and termination resistors are needed externally.
What is the role of the integrated buck controller?
The integrated buck controller powers the cooling fan directly from the VBRG rail during high-power operation. It eliminates the need for an external fan driver IC or LDO, reducing thermal resistance and simplifying layout while maintaining surface temperature below 55°C at 50W.
Can WLC1150-68LQXQT operate with non-Qi receivers?
Yes. In Infineon proprietary protocol mode, it delivers full 50W to compatible receivers without Qi certification. For Qi EPP/BPP operation, it requires OPTIGA™ Trust Charge authentication over I²C - but proprietary mode functions independently of Qi stack licensing.
How is foreign object detection implemented?
FOD uses adaptive multi-parameter analysis: real-time monitoring of coil Q-factor, resonance frequency shift, and power loss delta between idle and loaded states. This method is implemented in firmware running on the embedded Cortex-M0 and validated across metal, ceramic, and composite objects per WPC test specifications.
WLC1150-68LQXQT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- 68-UFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- 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:
- 68-QFN (8x8)
WLC1150-68LQXQT FAQ
1.How can I place an order for WLC1150-68LQXQT through Aetrix?
Please submit a Request for Quotation (RFQ) for WLC1150-68LQXQT 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 WLC1150-68LQXQT reliable?
The price and inventory of WLC1150-68LQXQT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for WLC1150-68LQXQT is usually 5 days.
3.What payment methods are accepted for WLC1150-68LQXQT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for WLC1150-68LQXQT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for WLC1150-68LQXQT?
WLC1150-68LQXQT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your WLC1150-68LQXQT 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 WLC1150-68LQXQT?
For technical support, including WLC1150-68LQXQT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your WLC1150-68LQXQT requirements.
6.How does Aetrix verify that WLC1150-68LQXQT is sourced from the original manufacturer or authorized distributors?
All WLC1150-68LQXQT 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 WLC1150-68LQXQT meets industry standards.
7.What is the process for return or replacement of WLC1150-68LQXQT?
All WLC1150-68LQXQT units undergo pre-shipment inspection (PSI). If there is an issue with WLC1150-68LQXQT, 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 WLC1150-68LQXQT part is unused and in its original packaging.
Return procedure for WLC1150-68LQXQT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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