MWCT1101CLH - 5W Single-Coil Wireless Charging Tx PMIC
MPN: MWCT1101CLH ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $5.95 | $5.95 |
| 10 | $5.36 | $53.60 |
| 100 | $4.76 | $476.00 |
| 500 | $4.28 | $2,140.00 |
| 1,000 | $3.81 | $3,810.00 |
| 3,000 | $3.45 | $10,350.00 |
MWCT1101CLH Overview
A wireless charging transmitter PMIC belongs to the broader wireless-power transfer (WPT) product family, sitting hierarchically under power management ICs and specialized PMICs. These devices drive a transmitter coil with a regulated AC waveform; power-transfer efficiency, foreign-object detection, and Qi protocol compliance are the headline concerns. The MWCT1101CLH targets the consumer 5W Qi baseline (Baseline Power Profile, BPP, equivalent to ~5V at up to 1A through the LC tank at resonance).
Key features include single-coil support (WPC A5/A11/A12/A15 coil topologies), Qi interoperability via NXP's firmware library, integrated digital demodulation, adaptive foreign-object detection, and adaptive dead-time control to maximize efficiency across load range. The device supports 5V typical input (e.g., USB or 5V rail) and produces the AC coil current required for a 5W transmitter stage. A UART/I2C peripheral interface allows a host MCU to update firmware, query status, and run diagnostics, while firmware resides in external flash.
Architecturally, the MWCT1101CLH embeds an on-chip digital state machine plus dedicated analog front-end for current sensing, voltage sensing, and FOD; this mixed-signal architecture simplifies layout versus discrete implementations. The integrated gate drivers for the full-bridge (typically N-MOSFET half-bridge pair) reduce external part count and ease EMI compliance.
Typical applications include smartphone wireless charging pads, gaming-mouse and earbud-case wireless charging stands, and embedded furniture charging surfaces; the small LQFP-64 footprint and low-BOM external count also make it attractive for medical and industrial 5W charging cradles. NXP's reference designs emphasize easy Bluetooth/Wi-Fi coexistence by tuning switching frequency and dithering to reduce EMI coupling.
When designing with the MWCT1101CLH, follow NXP's reference PCB layout closely: keep the coil-to-tank capacitor loop area minimal, provide adequate ground pour around the device, and ensure the host MCU firmware is built against NXP's latest Qi library to maintain interoperability with Qi-certified receivers.
This page synthesizes distributor pricing, pin-compatible firmware-compatible drop-in alternatives, and practical design notes beyond the bare manufacturer datasheet.
Drop-in alternatives for MWCT1101CLH — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
MWCT1102CLH
✅ Drop-In📋 Reference alternative (not in catalog)
MWCT1000CLH
✅ Drop-In📋 Reference alternative (not in catalog)
MWCT1111CLH
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
MWCT2x03A
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
MWCT1101CLH Specifications
| Product Type | Wireless Power Transmitter PMIC (single-coil, 5W) |
| Topology | Single-coil, WPC Qi BPP Tx |
| Output Power | 5 W |
| Supply Voltage | 5 V typ (USB / 5V rail) |
| Coil Configurations Supported | WPC A5 / A11 / A12 / A15 |
| Interface | I2C, UART, GPIO for host MCU |
| Package | 64-LQFP (10x10 mm, exposed-pad thermal slug) |
| Pin Count | 64 |
| Foreign Object Detection | Adaptive FOD via Q-factor & power-loss detection |
| Demodulation | Integrated digital demodulation for Qi comms |
| Switching Bridge | Integrated gate drivers for external N-FET full-bridge |
| LED / Status Outputs | User-status LED drivers (per firmware) |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant (per NXP product page) |
| Lead-Free / Halogen-Free | Lead-free; halogen-free (per NXP product page) |
| Compliance Standard | Designed for WPC Qi Baseline Power Profile (5W) |
MWCT1101CLH 64-lqfp (10x10 mm, exposed-pad thermal slug) Pin Configuration Guide
Pin configuration for MWCT1101CLH (64-lqfp (10x10 mm, exposed-pad thermal slug) package). Pin numbering, functions, and connection diagrams are defined in the manufacturer datasheet. Refer to it for the exact footprint and soldering guidelines.
No detailed pinout data available for MWCT1101CLH.
Refer to the datasheet for full pin configuration.
Typical Applications
MWCT1101CLH is suitable for 6 applications: Consumer Qi 5W Charging Pad (Single-Coil), Wireless Charging Stands for Earbuds & Wearables, Gaming Mouse / Desk-Top Wireless Charging Dock, Embedded Furniture & Desktop Qi Pads, Industrial Hand-Held Cradle Charger, Portable / Battery-Bank Qi Transmitter Module.
Consumer Qi 5W Charging Pad (Single-Coil)
The MWCT1101CLH integrates a full-bridge driver, FOD, and WPC Qi BPP protocol handling in a 64-LQFP package, making it the lowest-BOM path for a single-coil 5W Qi charging pad. The integrated N-FET gate drivers and digital demodulation remove dozens of discrete parts, shrinking PCB footprint for travel-friendly designs. Placed between a 5V USB-C input and a single WPC A5/A11 coil, it delivers up to 5W with adaptive dead-time control and Q-factor FOD - typically 70%+ end-to-end efficiency on the NXP reference design.
Recommended
Wireless Charging Stands for Earbuds & Wearables
For 5W earbud-case and smartwatch charging cradles the MWCT1101CLH provides adaptive FOD on small coils where Q-factor sensitivity is high, preventing false positives on metalized enclosures. Its integrated gate drivers drive low-Rds(on) N-FETs for the half-bridge, minimizing thermal rise inside a sealed cradle - critical for wearables where fan / heat-sink cooling is impossible. The 64-LQFP 10x10 mm footprint also fits inside the slim stand base.
Recommended
Gaming Mouse / Desk-Top Wireless Charging Dock
A 5W Qi charging puck for a gaming mouse needs stable FOD against dense PCB copper and RGB LED converters. The MWCT1101CLH's digital demodulation and adaptive Q-factor loss measurement are robust against such nearby EMI sources and discriminate real FOD events from LED-driver switching ripple. Coupled with NXP's WPC Qi firmware, this IC handles device-discovery, ping, identification, and power-transfer phase handshakes with Qi-certified receivers.
Recommended
Embedded Furniture & Desktop Qi Pads
For through-surface or in-desk wireless chargers, the MWCT1101CLH operates on 5V input, simplifying integration with USB bus power available in modern furniture. Its LQFP-64 footprint is large enough to dissipate heat from a 5W coil through 4-layer FR4 plus thermal vias, eliminating the need for a heatsink. NXP's reference design documents EMI tuning (dithering, frequency hopping) for residential and office use where Bluetooth/Wi-Fi coexistence matters.
Recommended
Industrial Hand-Held Cradle Charger
For 5V industrial hand-held scanner cradles, the MWCT1101CLH integrates overcurrent, overvoltage, and FOD protection, reducing the discrete protection-circuit BOM. Industrial designers value a single 64-LQFP that meets WPC Qi BPP and operates from a 5V input rail already present in the docking station. With exposed pad for ground/thermal via array, the IC handles cradle thermal-load cycles without an external heatsink inside the IP54 enclosure.
Recommended
Portable / Battery-Bank Qi Transmitter Module
In a portable power-bank Qi transmitter, the MWCT1101CLH delivers stable 5W from a regulated 5V rail while its FOD and trickle-rx detection wake the bank only when a Qi device is placed on it. Standby current and sleep mode are handled in NXP's firmware, extending battery life. The 64-LQFP fits inside a slim power-bank form factor alongside the USB-PD source controller.
Recommended
Recommended Products Summary
Engineering reference data for MWCT1101CLH — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | MWCT1102CLH | MWCT1000CLH | MWCT1111CLH |
|---|---|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Package | 64-LQFP (10x10 mm) | 64-LQFP (10x10 mm) - same | 64-LQFP (10x10 mm) - same | 64-LQFP (10x10 mm) - same |
| Output Power | 5 W (Qi BPP) | 5 W (Qi BPP, updated firmware) | 5 W (Qi BPP) | 5 W (Qi BPP+) |
| Supply Voltage | 5 V typ | 5 V typ | 5 V typ | 5 V typ |
| Coil Support | Single-coil (A5/A11/A12/A15) | Single-coil + some multi-coil firmware paths | Single-coil | Single-coil |
| FOD Algorithm | Adaptive Q-factor + power-loss | Enhanced adaptive Q-factor | Q-factor (older baseline) | Refined adaptive Q-factor for BPP+ |
| Host Interface | I2C, UART, GPIO | I2C, UART, GPIO | I2C, UART, GPIO | I2C, UART, GPIO |
| RoHS / Lead-Free | Yes | Yes | Yes | Yes |
Key Differentiators
- Most mature NXP WPC Qi 5W BPP firmware ecosystem (vs MWCT1000CLH)
- Lowest BOM count for BPP charging pad (vs MWCT1102CLH)
- Enhanced adaptive FOD vs older family members (vs MWCT1000CLH)
Design Notes
The MWCT1101CLH fits a 64-LQFP (10x10 mm) with an exposed thermal pad that is the primary heat-dissipation path. Estimated: at 5W input minus the ~5W output to coil, the digital + gate-driver quiescent dissipation stays below 0.3-0.5W on a typical pad; follow NXP's reference layout with an unbroken top-side copper pour under the device plus a 4x4 thermal via array to inner ground planes for reliable operation at +60C ambient.
Minimize the loop area between the half-bridge MOSFETs, the DC-link capacitor, and the LC tank; the MWCT1101CLH datasheet recommends placing the input bypass cap directly at the IC supply pins. Keep coil traces short and routed as a differential pair to the tank capacitor to reduce EMI and improve FOD accuracy. Reserve a keep-out zone on the underside for the external N-FETs used in the full bridge; the PCB should be at least 2-layer with continuous ground pour.
Three common MWCT1101CLH pitfalls: (1) forget to ground the exposed thermal pad properly - it is the chip ground; (2) skip firmware flashing on external SPI flash - the IC ships without a Qi library; (3) using a Qi library version mismatched to the WPC Qi spec revision released after the firmware cut. Always check NXP's latest WPC Qi firmware release notes and gate your design with the most recent library; mismatched libraries cause Qi-certification failures and FOD false-positives.
The MWCT1101CLH integrates adaptive frequency dithering and dead-time control; on the bench, FOD accuracy drops sharply with large Z-distance (>5 mm) between the coil and receiver. For through-surface applications (embedded furniture), reduce dither range and increase coil current to maintain stable ping and power-transfer phases. Use NXP's EMI tuning tool to set switching frequency to avoid 13.56 MHz and 27 MHz NFC/RFID bands that can bleed into pad-to-reader demos.
Compliance Information
RoHS / REACH / lead-free / halogen-free status per NXP product page at https://www.nxp.com/part/MWCT1101CLH. No AEC-Q100 claim on the consumer-grade MWCT1101CLH.
