Infineon Technologies XMC6521SCQ040XXUMA1

Overview

XMC6521SCQ040XXUMA1 from Infineon Technologies is a wireless power controller IC based on the XMC1000 family, featuring an ARM® Cortex®-M0 32-bit processor core, 200 kHz–1 MHz resonant frequency support, integrated analog comparators and ADC for coil current/voltage sensing, and dedicated hardware for digital demodulation and phase control in Qi-compliant transmitters. It targets commercial and industrial wireless charging systems requiring precise power regulation and foreign object detection (FOD).

For engineers reviewing the XMC6521SCQ040XXUMA1 datasheet, XMC6521SCQ040XXUMA1 pinout, XMC6521SCQ040XXUMA1 application, or XMC6521SCQ040XXUMA1 equivalent, key selection criteria include resonant frequency range, integrated FOD algorithm support, ADC resolution (12-bit), comparator response time (<100 ns), and QFN-40 package thermal performance for high-power transmitter designs.

Technical Context

This device implements a dedicated hardware-assisted wireless power control architecture with dual analog comparators for real-time voltage/current zero-crossing detection, a 12-bit SAR ADC with programmable sampling timing synchronized to switching cycles, and configurable PWM outputs with dead-time insertion for half-bridge gate driving. Its Cortex-M0 core executes closed-loop power regulation firmware while offloading time-critical analog monitoring to peripheral hardware.

The IC integrates a 48 MHz internal oscillator trimmed to ±2% accuracy, supports SW-DP debug interface, and features dedicated registers for Qi specification compliance-including dynamic power control, temperature monitoring via internal sensor (±2°C accuracy), and overvoltage/overcurrent fault latching with automatic shutdown.

Key Specifications

Pinout & Package

Package: QFN-40 (6 mm × 6 mm, 0.5 mm pitch, exposed thermal pad). Pin count and layout conform to Infineon's XMC1000 SC series standard pin mapping for wireless power controllers.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STWBC2-HP and MP-A21, XMC6521SCQ040XXUMA1 uniquely combines integrated high-speed analog front-end, hardware FOD, and Qi-compliant register mapping in a single QFN-40 package-reducing system-level component count and simplifying certification for industrial 15–20 W transmitters.

Availability

XMC6521SCQ040XXUMA1 is available at Aetrix Electronics and suitable for smartphone wireless charging pads, industrial tool docking stations, medical equipment docks, and automotive multi-coil consoles requiring stable component supply and long-term lifecycle support.

Supply support for XMC6521SCQ040XXUMA1 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 AG is a German semiconductor manufacturer specializing in power management, automotive electronics, and industrial control ICs, with global manufacturing and R&D centers.

The XMC1000 SC series is designed specifically for wireless power transmitter applications, integrating mixed-signal peripherals and firmware-ready registers to accelerate Qi and PMA-compliant system development.

FAQ

Does XMC6521SCQ040XXUMA1 support proprietary wireless charging protocols beyond Qi?

No. This device implements only Qi v1.2.4 and basic PMA v1.0 protocol stacks via its hardware-accelerated packet engine and register-mapped communication layer. It does not support AirFuel Resonant or other proprietary extensions. Firmware customization is limited to parameter tuning within the defined Qi command set.

What is the maximum continuous output power achievable using XMC6521SCQ040XXUMA1 in a typical 15 W transmitter design?

In a well-designed 15 W Qi transmitter with optimized PCB layout, 2-layer thermal stack-up, and external 60 V MOSFETs, XMC6521SCQ040XXUMA1 supports continuous operation at full rated power up to +85°C ambient. Derating begins above this temperature due to internal thermal sensor activation at 110°C junction.

Can the internal ADC be used for both primary-side current sensing and secondary-side voltage feedback simultaneously?

Yes. The 12-bit ADC supports up to four simultaneous input channels (AIN0–AIN3) with programmable sampling sequence and trigger sources. It can acquire primary coil current and secondary rectified voltage in alternating cycles with sub-microsecond timing alignment to PWM edges.

Is external flash memory required to run the wireless power control firmware?

No. The device includes 256 KB on-chip flash memory with ECC protection, sufficient to store full Qi-compliant firmware including packet handling, PID control, FOD, and thermal management routines. No external memory is needed for standard operation.