High-Density Isolated Power Modules for Automotive and Data Infrastructure

The UCC34141-Q1 and UCC33420 isolated power modules utilize a specialized packaging architecture to provide functional, basic, and reinforced isolation for high-voltage systems. By integrating a planar transformer with an isolated power stage, these components facilitate the transition toward a distributed power architecture. This shift is particularly relevant for technical designers aiming to reduce single-point failures in a digital supply chain and improve overall system reliability in industrial environments.

Integration of Planar Transformers and IsoShield Technology
The core of the hardware advancement lies in the IsoShield packaging technology, which copackages the power stage and transformer into a single unit. This configuration achieves up to three times higher power density compared to discrete isolated power designs. During the Applied Power Electronics Conference (APEC), held March 23–26, 2026, in San Antonio, Texas, the modules demonstrated a reduction in total solution size by as much as 70%.

For engineers, this miniaturization addresses the physical limitations of board space while delivering up to 2W of power. The technical benefit of this integration is the elimination of external transformer placement and routing, which typically accounts for significant footprint and electromagnetic interference (EMI) challenges in high-frequency switching environments.

Applications in the Automotive Data Ecosystem
Within the automotive data ecosystem, these modules support the development of lighter, more efficient electric vehicles (EVs). By increasing power density at the component level, manufacturers can reduce the weight of onboard charging systems and battery management units, directly impacting vehicle range. The reinforced isolation capabilities also ensure that low-voltage communication logic remains protected from high-voltage traction battery transients.

In data center environments, the modules address the demand for compact power delivery as infrastructure scales to meet increased processing requirements. The distributed power architecture enabled by these modules allows for localized voltage regulation, which minimizes distribution losses across large-scale server racks.

Expansion of Integrated Power Portfolios
The introduction of these modules follows a broader industry trend toward integrated magnetic technologies. While traditional power designs rely on separate inductors and transformers, the move toward integrated modules focuses on optimizing thermal management and reducing parasitic inductance. Texas Instruments currently maintains a portfolio of over 350 power modules, including those utilizing MagPack technology for integrated inductors and IsoShield for integrated transformers, to support standardized power management across diverse hardware platforms.

Edited by Evgeny Churilov, Induportals Media - Adapted by AI.

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