Infineon Technologies XDPP1100Q024XUMA1

Overview

XDPP1100Q024XUMA1 from Infineon Technologies is a digital power supply controller with integrated ARM® Cortex™-M0 core (100 MHz, 64 kB OTP, 32 kB RAM), PMBus™ 1.3 interface, and dual-rail programmable control logic - supporting up to 6 DPWM outputs at 78.125 ps resolution and 2 MHz switching frequency. It implements secondary-side regulation with primary-side current emulation and transformer winding voltage sensing for isolated DC-DC converters in telecom and industrial 48V-to-12V systems.

For engineers reviewing the XDPP1100Q024XUMA1 datasheet, XDPP1100Q024XUMA1 pinout, XDPP1100Q024XUMA1 application, or XDPP1100Q024XUMA1 equivalent, key selection criteria include its 24-pin VQFN package, 100 MHz 11-bit voltage ADC (1.25 mV/LSB), 25 MHz 9-bit current ADC, configurable voltage/peak-current/constant-power control modes, and support for full-bridge, phase-shifted, and active-clamp forward topologies.

Technical Context

The XDPP1100Q024XUMA1 integrates a state-machine-based digital control loop with PID compensation (origin pole + 2 HF poles + 2 zeros) and hardware-accelerated transient response via Fast Transient Response (FTR). Its analog front end includes three 100 MHz, 11-bit differential voltage ADCs and two 25 MHz, 9-bit current ADCs with selectable gain (100 µV/LSB or 1.45 mV/LSB), enabling precise secondary-side regulation without optocouplers.

It supports dual independent control loops in single-rail configuration (6 DPWM outputs), with cycle-by-cycle duty matching, 1.25 ns dead-time resolution, and programmable edge alignment (leading, trailing, center). Communication is handled via 1 MHz I²C/PMBus with runtime-customizable command set and optional UART, all managed by the on-chip ARM Cortex-M0 subsystem.

Key Specifications

Pinout & Package

XDPP1100Q024XUMA1 is housed in a 24-pin VQFN package (4.0 mm × 4.0 mm, 0.5 mm pitch), optimized for space-constrained single-rail DC-DC modules. Thermal pad exposed on underside for enhanced PCB heat dissipation.

Key Features

Applications

Equivalent & Alternatives

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

Compared with UCC28950RTJT and ZL9117MIRTC, XDPP1100Q024XUMA1 uniquely combines ARM-based firmware extensibility, hardware-accelerated FTR protection, and transformer-winding-based secondary regulation - enabling true optocoupler-free isolated designs with field-upgradable control algorithms.

Availability

XDPP1100Q024XUMA1 is available at Aetrix Electronics and suitable for telecom infrastructure, industrial 48V-to-12V isolated converters, and datacenter intermediate bus applications requiring stable component supply, long lifecycle support, and JEDEC-qualified industrial temperature operation.

Supply support for XDPP1100Q024XUMA1 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 manufacturer specializing in power management, automotive, and industrial control ICs, with leadership in silicon carbide, digital power, and radar solutions.

XDPP1100 belongs to Infineon's XDPP digital power controller product line, designed specifically for space-constrained, high-efficiency isolated DC-DC modules in telecom, server, and Industry 4.0 applications - emphasizing integration, firmware flexibility, and optocoupler elimination.

FAQ

What package type and thermal characteristics does XDPP1100Q024XUMA1 use?

XDPP1100Q024XUMA1 uses a 24-pin VQFN package (4.0 mm × 4.0 mm, 0.5 mm pitch) with exposed thermal pad. Its maximum junction temperature is +125°C, and it is rated MSL2 per IPC/JEDEC J-STD-020E. Thermal resistance θ_JA is 42°C/W on a 2-layer PCB with 1-in² copper pour, enabling operation at full load in compact 48V brick modules without forced airflow.

Does XDPP1100Q024XUMA1 support secondary-side regulation without an optocoupler?

Yes. XDPP1100Q024XUMA1 implements secondary-side regulation using primary-side current signal emulation and direct transformer winding voltage sensing (via VRREF/VRSEN pins), eliminating the need for optocouplers or TL431 references. This architecture maintains ±0.5% output accuracy across line, load, and temperature while reducing component count and improving reliability.

Can the ARM Cortex-M0 firmware be customized for proprietary control algorithms?

Yes. The on-chip 32 kB RAM and 64 kB OTP allow full firmware development in standard ARM toolchains (Keil, GCC, IAR). Infineon provides HAL libraries and GUI-configurable register maps. Customers retain full ownership of compiled binaries and may implement custom PID tuning, sequencing logic, or telemetry preprocessing without vendor lock-in.

What protection features are implemented in hardware versus firmware?

Hardware-implemented protections include OVP/UVP comparators (<100 ns latency), OCP/UCP peak-current limiters, and SR negative current detection - all operating independently of CPU execution. Firmware-managed features include soft-start profiles, temperature hysteresis settings, and PMBus-triggered fault logging. Both domains coordinate via shared status registers and interrupt flags.