TI Claims First 500-mW Isolated DC/DC Converter With Integrated Transformer

February 13, 2020 Alix Paultre

Texas Instruments introduced an IC with a proprietary integrated transformer technology. The UCC12050 500mW high-efficiency isolated DC/DC converter offers the industry’s lowest electromagnetic interference (EMI), and its 2.65-mm height can reduce the solution volume by as much up to 80% compared to discrete solutions and 60% compared to power modules. The 16-pin small-outline integrated circuit package measures 10.3 mm by 10.3 mm by 2.65 mm, and offers 60% efficiency, with twice the power density of comparative isolated power modules.

The device’s 5-kVrms reinforced isolation and 1.2-kVrms working voltage protect against high-voltage spikes, and TI’s integrated transformer technology enables high-density isolated DC/DC power conversion with low EMI, in a single-package, surface-mount architecture. An EMI-optimized, low capacitance transformer and quiet control scheme streamline EMI compliance, with options for reinforced or basic isolation. 

The solution also eliminates external filter components such as low-dropout regulators and ferrite beads, normally required to meet EMI certification. The UCC12050’s reinforced isolation with 8-mm creepage and clearance is used for protection and robustness against ground potential differences. Its high efficiency and extended -40°C to 125°C operating temperature range deliver more power in extreme conditions. 

The UCC12050 and UCC12040 are available in volume production from TI and authorized distributors in a 16-pin, 10.3-mm-by-10.3-mm-by-2.65-mm SOIC package. Pricing starts at US$3.90 and US$3.15, respectively, in 1,000-unit quantities. Engineers can evaluate this product with the UCC12050EVM-022 evaluation module, available on TI.com for US$99.

TI will demonstrate the UCC12050 in booth No. 1001 at the Applied Power Electronics Conference (APEC) in New Orleans, Louisiana, March 15-19, 2020.


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