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NXP Semiconductors MWCT1123FVLL
- Part No.:
- MWCT1123FVLL
- Manufacturer:
- NXP Semiconductors
- Category:
- Power Management - Specialized
- Package:
- 100-LQFP
- Datasheet:
-
MWCT1123FVLL.pdf
- Description:
- KV4X WCT 100LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,605
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Product details
Overview
MWCT1123FVLL from NXP Semiconductors is a 168 MHz Arm® Cortex®-M4 wireless power transmitter microcontroller with FPU, dual 12-bit ADCs (240 ns conversion), eFlexPWM (312 ps resolution), 256 KB flash, and dual FlexCAN interfaces - designed for Qi-compliant 65 W induction-based wireless charging systems.
For engineers reviewing the MWCT1123FVLL datasheet, MWCT1123FVLL pinout, MWCT1123FVLL application, or MWCT1123FVLL equivalent, key selection criteria include its 168 MHz real-time control capability, nano-edge PWM timing precision for resonant tank regulation, integrated foreign object detection logic, and support for multi-coil topologies in consumer-grade wireless power transmitters.
Technical Context
The MWCT1123FVLL implements a dedicated wireless power control architecture centered on high-speed analog feedback loops and adaptive frequency tracking (100–145 kHz). Its eFlexPWM module delivers sub-nanosecond delay resolution to precisely modulate gate drivers in resonant LLC or Class-E power stages, while dual 12-bit cyclic ADCs sample coil current/voltage at up to 4.1 MSPS for closed-loop Z-gap compensation and efficiency optimization.
It integrates two FlexCAN 2.0B modules for secure BLE-assisted firmware updates and host communication, alongside a programmable delay block and hardware CRC engine to ensure deterministic timing and data integrity in safety-critical power transfer sequences - all operating across –40 to 105 °C with 1.71–3.6 V supply range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M4 @ 168 MHz with single-precision FPU - enables real-time digital control of resonant frequency and power delivery without external DSP. |
| Flash / RAM | 256 KB flash / 32 KB SRAM - sufficient for full Qi v1.2.4 protocol stack, FOD algorithms, and multi-coil calibration tables. |
| ADC Performance | Dual 12-bit cyclic ADCs, 240 ns conversion time, 4.1 MSPS - supports simultaneous sampling of primary current and voltage for instantaneous power calculation. |
| eFlexPWM | 4 sub-modules, 12 PWM outputs, 312 ps resolution - achieves precise phase-shifted control of multi-phase inverters in high-efficiency wireless power transmitters. |
| Operating Range | 1.71–3.6 V supply, –40 to 105 °C ambient - qualified for industrial-grade wireless charging pads and automotive cabin integration. |
| Communication | Dual FlexCAN 2.0B, 2× UART/FlexSCI, SPI, I²C - enables robust host interface, OTA update channel, and debug trace via SWD/Micro Trace Buffer. |
| Analog Peripherals | 4× analog comparators with 6-bit DAC, 1× 12-bit DAC - provides hardware-accelerated threshold detection for foreign object detection and analog sensor interfacing. |
Pinout & Package
Package: 100-pin LQFP (14 mm × 14 mm, 0.5 mm pitch), RoHS-compliant, moisture sensitivity level 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD / VDDA | Digital & analog power supply | Separate 1.71–3.6 V domains with ≤0.1 V differential tolerance - ensures ADC accuracy and noise isolation in high-dV/dt power environments. |
| PTB0–PTB1, PTC3–PTC4, PTD4–PTD7 | High-drive GPIO | 20 mA sink/source capability - directly drives gate drivers or optocouplers without external buffers in compact transmitter designs. |
| PTC6 / PTC7 | True open-drain outputs | No internal pull-up; require external resistors - used for level-shifted fault signaling or I²C bus arbitration in mixed-voltage systems. |
| ADC0_SE0–ADC0_SE17, ADC1_SE0–ADC1_SE17 | Analog input channels | Supports up to 18-channel ADC A and 20-channel ADC B - enables simultaneous monitoring of multiple coil currents, temperatures, and voltage rails. |
| CAN0_TX / CAN0_RX, CAN1_TX / CAN1_RX | FlexCAN differential I/O | Integrated CAN transceiver physical layer interface - eliminates need for external CAN PHY in host-connected wireless charger controllers. |
Key Features
| Feature | Design Value |
|---|---|
| NanoEdge PWM timing | 312 ps resolution enables <1 ns jitter control over switching edges - critical for maintaining zero-voltage switching (ZVS) across variable coupling conditions. |
| Resonant frequency tracking | Hardware-accelerated 100–145 kHz sweep with real-time feedback - sustains >86% peak system efficiency despite coil misalignment or Z-gap changes (4–35 mm). |
| Foreign Object Detection (FOD) | Multi-stage algorithm using ADC + comparator + DAC - detects metallic objects prior to and during power transfer without added sensors or firmware overhead. |
| Qi PC0 compliance support | Integrated WPC v1.2.4 protocol stack and authentication engine - enables certified 5 W / 15 W receiver interoperability in premium transmitter variants. |
| Low-power standby | 200 nA VLLS0A current with POR circuit disabled - extends battery-backed operation in portable wireless charging applications. |
Applications
| Smartphone Wireless Charging Pad | Multi-Coil Laptop Charging Station |
|---|---|
Use Scenario: Consumer-grade desktop charging pad supporting Qi-certified smartphones with automatic coil activation and foreign object rejection. IC Role / Device Role / Timing Role: Primary controller managing resonant frequency sweep, power ramp-up, and real-time thermal/current protection via dual ADCs and eFlexPWM. Use Value: Achieves <2.5 s start-up time and >86% end-to-end efficiency at 65 W output by tightly coupling analog sensing with sub-nanosecond PWM timing. | Use Scenario: High-power laptop charging station with three overlapping transmitter coils enabling seamless device placement across large active area. IC Role / Device Role / Timing Role: Central coordinator routing power to active coil zone using multiplexer control signals and synchronized ADC sampling across all coils. Use Value: Enables modular expansion with only minor software reconfiguration and no topology change - reducing BOM cost and design cycle time. |
| Automotive Cabin Wireless Charger | Industrial Tool Battery Charger |
Use Scenario: In-vehicle wireless charging module integrated into center console, operating under wide temperature and EMI conditions. IC Role / Device Role / Timing Role: Safety-critical power manager implementing ISO 11898-1 CAN communication for vehicle network status reporting and fault logging. Use Value: Meets automotive EMC radiated emissions limits (IEC 61967-2, L-class) while delivering stable 15 W output across –40 to 105 °C ambient range. | Use Scenario: Cordless power tool fast-charging dock with programmable charge profiles and thermal derating based on battery chemistry. IC Role / Device Role / Timing Role: Precision analog controller using 12-bit DAC and comparator outputs to regulate constant-current/constant-voltage charging stages. Use Value: Eliminates need for external DAC or comparator ICs - reduces component count and improves thermal coupling between sensing and control paths. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar wireless power transmitter controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MP-A21 (NXP) | Lower clock speed (100 MHz), no FPU, 128 KB flash, single ADC, no nano-edge PWM | Targeted at 5–15 W basic Qi transmitters without multi-coil or high-efficiency requirements | Select MP-A21 only for cost-sensitive, low-power applications where 168 MHz real-time control and FOD precision are not required. |
| STWLC68 (STMicroelectronics) | Dedicated analog wireless power IC (no MCU core), fixed 15 W max, no CAN, no user-programmable firmware | Turnkey solution for simple single-coil chargers requiring minimal development effort | Choose STWLC68 when rapid time-to-market is prioritized over field-upgradable features or custom FOD logic. |
Compared with MWCT1123FVLL, MP-A21 lacks the computational headroom and analog precision needed for 65 W multi-coil systems, while STWLC68 trades programmability for integration - making MWCT1123FVLL the only option supporting full Qi PC0 certification, BLE-assisted updates, and hardware-accelerated resonant tracking in one package.
Availability
MWCT1123FVLL is available at Aetrix Electronics and suitable for wireless charging pads, multi-coil laptop stations, and automotive cabin power transmitters requiring stable component supply, long-term lifecycle support, and full Qi certification readiness.
Supply support for MWCT1123FVLL 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
NXP Semiconductors is a global semiconductor leader specializing in secure connectivity solutions for automotive, industrial, and IoT applications, with deep expertise in wireless power and embedded security.
The MWCT1x23 product line was engineered specifically for high-efficiency, Qi-compliant wireless power transmitter systems - integrating real-time control, analog sensing, and protocol acceleration into a single Arm-based MCU platform.
FAQ
What is the maximum operating frequency of the MWCT1123FVLL CPU core?
The MWCT1123FVLL CPU core is an Arm Cortex-M4 running at up to 168 MHz with integrated single-precision floating-point unit (FPU). This frequency is fully supported across the specified operating voltage range (1.71–3.6 V) and temperature range (–40 to 105 °C), enabling deterministic execution of complex wireless power control algorithms in the MWCT1123FVLL.
Does the MWCT1123FVLL support Qi certification for wireless power transmission?
Yes, the MWCT1123FVLL supports WPC Qi v1.2.4 certification in its premium variant, including Power Class 0 (PC0) compliance for 5 W and 15 W receivers. It integrates hardware-accelerated foreign object detection, resonant frequency tracking (100–145 kHz), and authentication engines required for full Qi certification - all implemented within the MWCT1123FVLL silicon.
What analog peripherals are integrated into the MWCT1123FVLL?
The MWCT1123FVLL integrates dual 12-bit cyclic ADCs (up to 4.1 MSPS), four analog comparators each with a 6-bit DAC and programmable reference input, and one standalone 12-bit DAC. These peripherals are optimized for real-time coil current/voltage sensing, thermal monitoring, and hardware-based foreign object detection - all essential functions executed directly inside the MWCT1123FVLL without external components.
What is the package type and pin count of the MWCT1123FVLL?
The MWCT1123FVLL is housed in a 100-pin LQFP package measuring 14 mm × 14 mm with 0.5 mm pitch. This package is RoHS-compliant and rated MSL-3 per J-STD-020, and it maps directly to the pin assignments documented in NXP's package drawing 98ASS23308W - confirming mechanical and thermal compatibility for standard SMT assembly of the MWCT1123FVLL.
How does the MWCT1123FVLL achieve precise power stage timing control?
The MWCT1123FVLL achieves precise power stage timing control through its eFlexPWM module with 312 ps resolution and programmable delay blocks. This allows sub-nanosecond edge placement accuracy for gate drive signals in resonant LLC or Class-E topologies - ensuring zero-voltage switching (ZVS) maintenance across varying coupling conditions, a capability uniquely delivered by the MWCT1123FVLL among NXP's wireless power MCUs.
MWCT1123FVLL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- -
- Package/Case:
- 100-LQFP
- Packaging:
- Tray
- Product Status:
- Active
- Applications:
- Microcontroller, MCU
- Current - Supply:
- -
- Voltage - Supply:
- 1.71V ~ 3.6V
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 100-LQFP (14x14)
MWCT1123FVLL FAQ
1.How can I place an order for MWCT1123FVLL through Aetrix?
Please submit a Request for Quotation (RFQ) for MWCT1123FVLL 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 MWCT1123FVLL reliable?
The price and inventory of MWCT1123FVLL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MWCT1123FVLL is usually 5 days.
3.What payment methods are accepted for MWCT1123FVLL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MWCT1123FVLL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MWCT1123FVLL?
MWCT1123FVLL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MWCT1123FVLL 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 MWCT1123FVLL?
For technical support, including MWCT1123FVLL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MWCT1123FVLL requirements.
6.How does Aetrix verify that MWCT1123FVLL is sourced from the original manufacturer or authorized distributors?
All MWCT1123FVLL 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 MWCT1123FVLL meets industry standards.
7.What is the process for return or replacement of MWCT1123FVLL?
All MWCT1123FVLL units undergo pre-shipment inspection (PSI). If there is an issue with MWCT1123FVLL, 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 MWCT1123FVLL part is unused and in its original packaging.
Return procedure for MWCT1123FVLL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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