NXP Semiconductors MWCT1000CFM

Overview

MWCT1000CFM from NXP Semiconductors (formerly Freescale) is a WPC Qi-compliant wireless power transmitter controller IC designed for low-power (5 W) charging systems. It integrates on-chip digital demodulation, Foreign Object Detection (FOD), dynamic input power limiting, and super-low standby power (<25 mW) using Freescale Touch technology. It operates with 4.2–19 V DC input and supports AC capacitor/resistor and DC resistor receiver modulation schemes in guided-positioning single-coil transmitter designs.

For engineers reviewing the MWCT1000CFM datasheet, MWCT1000CFM pinout, MWCT1000CFM application, or MWCT1000CFM equivalent, this page delivers verified technical context, confirmed pin functions, real-world use cases in Qi-compliant transmitters, and validated alternative parts for WPC-compliant low-power wireless charging system design.

Technical Context

The MWCT1000CFM implements a software-defined control architecture with integrated digital demodulation to decode communication packets from Qi receivers, enabling frequency- and duty-cycle-based power stage regulation. Its embedded 12-bit ADC (±1.5 LSB INL), 6-bit DAC, and configurable GPIOs support analog sensing, touch detection, and real-time FOD algorithms.

It features dual clock domains: a 200 kHz internal oscillator for low-power standby and an 8 MHz trimmed IRC for active operation, with PLL support up to 400 MHz for NanoEdge PWM timing precision (312 ps step size). System protection includes over-voltage, over-current, and over-temperature monitoring with hardware fault response.

Key Specifications

Pinout & Package

Package: 64-pin LQFP (10 mm × 10 mm, 0.5 mm pitch), RoHS-compliant, moisture sensitivity level MSL 3.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar wireless power transmitter controller applications.

Compared with MWCT1000CFM, STWLC38 offers tighter integration but less design flexibility, while MP-A21 adds higher-power capability and newer Qi compliance at the cost of increased external component count and firmware complexity.

Availability

MWCT1000CFM is available at Aetrix Electronics and suitable for smartphone charging pads, wearable docks, USB-powered transmitters, and industrial handheld chargers requiring stable component supply across production lifecycles.

Supply support for MWCT1000CFM 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 focused on secure connectivity solutions for automotive, industrial, and IoT applications.

The MWCT1000CFM belongs to NXP's Wireless Charging Transmitter Controller product line, engineered specifically for WPC Qi-compliant 5 W transmitter systems requiring low standby power, integrated demodulation, and software-defined adaptability.

FAQ

What is the primary function of the MWCT1000CFM in a wireless charging system?

The MWCT1000CFM serves as the core controller for WPC Qi-compliant low-power (5 W) wireless power transmitters. It manages power stage frequency and duty cycle, decodes communication packets from receivers via on-chip digital demodulation, executes Foreign Object Detection, and maintains ultra-low standby power (<25 mW). The MWCT1000CFM enables full software configurability for custom coil topologies and charging profiles.

Does the MWCT1000CFM require external demodulation circuitry?

No, the MWCT1000CFM includes fully integrated digital demodulation hardware, eliminating the need for external analog demodulator ICs or discrete filtering components. This integration reduces bill-of-materials count, simplifies PCB layout, and improves signal integrity by avoiding noise-prone analog signal paths. The MWCT1000CFM directly processes received Qi communication signals internally.

How does the MWCT1000CFM achieve <25 mW standby power consumption?

The MWCT1000CFM achieves sub-25 mW standby power through Freescale Touch technology - a capacitive proximity sensing method - or configurable periodic analog PING, both operating in ultra-low-power modes. Its 200 kHz internal oscillator and optimized sleep-state sequencing minimize active circuitry during idle periods. This behavior is confirmed in Section 3.2 of the MWCT1000DS datasheet and enables always-on device detection without draining host power sources.

What protection features are implemented in the MWCT1000CFM?

The MWCT1000CFM integrates over-voltage, over-current, and over-temperature protection with automatic fault response, including hardware-triggered PWM disable. It also implements Foreign Object Detection using real-time coil impedance analysis and thermal monitoring. These protections are enforced via dedicated analog comparators, ADC channels, and internal state machine logic - all documented in Sections 2.2 and 5.6 of the MWCT1000DS datasheet for the MWCT1000CFM.

Can the MWCT1000CFM support multiple receiver types with different modulation schemes?

Yes, the MWCT1000CFM explicitly supports all three WPC-defined receiver modulation strategies: AC capacitor, AC resistor, and DC resistor. Its integrated digital demodulation module is designed to decode packets from any Qi-compliant receiver regardless of modulation type. This compatibility is stated in the "Features" section of the MWCT1000DS datasheet and verified across functional testing of multiple certified receiver implementations for the MWCT1000CFM.