UCC12040/50 3 kVRMS and 5 kVRMS Isolated DC/DC Converters

UCC12040/50 3 kVRMS and 5 kVRMS Isolated DC/DC Converters

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Texas Instruments’ 500 mW, high-efficiency low-EMI converters are suitable for ultra-high voltage applications.

Texas Instruments’ UCC12040 and UCC12050 DC/DC converters with 3 kVRMS and 5 kVRMS reinforced isolation ratings, respectively, are designed to provide efficient, isolated power to isolated circuits that require a bias supply with well-regulated output voltages. These devices integrate a transformer and DC/DC controller with proprietary architecture to provide 500 mW (typical) of isolated power with high efficiency and low EMI.

The UCC12040/50 converters integrate protection features for increase system robustness. The devices feature an enable pin, synchronization capability and regulated 5 V or 3.3 V output options with the headroom. These low-profile, miniaturized converter solutions are available in a wide-body SOIC package with 2.65 mm height (typical).

Features:

  • High-efficiency with integrated transformer technology
  • Meets CISPR32 Class B EMI limits without ferrite beads across the load range on a 2-layer PCB
  • Output power: 500 mW (typ.)
  • Input voltage: 4.5 V to 5.5 V
  • Package: 16-pin wide-body SOIC with >8 mm creepage and clearance
  • Regulated 5.0 V to 3.3 V output with selectable 400 mV headroom voltage to power an LDO
  • Short circuit recovery
  • Thermal shutdown
  • Extended temperature range: -40°C to +125°C
  • Planned safety-related certification:
    • CSA certification per IEC 60950-1, IEC 62368-1, and IEC 60601-1 end-equipment standards
    • CQC approval per GB4943.1-2011
    • 3,000 VRMS (UCC12040) and 5,000 VRMS (UCC12050) isolation for 1 minute per UL 1577
  • Robust isolation barrier:
    • CMTI: ±100 V/ns (typ.)
    • Isolation rating: 3 kVRMS (UCC12040) and 5 kVRMS (UCC12050)
    • Surge capability: 8 kVPK (UCC12040) and 10 kVPK (UCC12050)
    • Working voltage: 800 VRMS (UCC12040) and 1.2 kVRMS (UCC12050)

more information: www.ti.com

Mike is the founder and editor of Electronics-Lab.com, an electronics engineering community/news and project sharing platform. He studied Electronics and Physics and enjoys everything that has moving electrons and fun. His interests lying on solar cells, microcontrollers and switchmode power supplies. Feel free to reach him for feedback, random tips or just to say hello :-)

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