Automotive, 500-mW, 5-kVrms isolated DC/DC module with integrated transformer


Product details


Vin (Max) (V) 5.5 Vin (Min) (V) 4.5 Iout (Max) (A) 0.1 Features Regulated, Single Output, 0.5W Operating temperature range (C) -40 to 125 Regulated outputs (#) 1 Package type Leaded TI functional safety category Functional Safety-Capable open-in-new Find other Isolated DC/DC converters & modules

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  • High-efficiency DC/DC converter with integrated transformer technology
  • AEC-Q100 qualified with the following results:
    • Device temperature Grade 1: –40°C to 125°C ambient operating Temperature
  • Functional Safety-Capable
  • Output power (typical): 500 mW
  • Regulated 5 V or 3.3 V output with selectable 400 mV headroom voltage to power an LDO
  • Input voltage: 4.5 V to 5.5 V
  • Robust isolation barrier:
    • Isolation rating: 5 kVRMS
    • Surge capability: 10 kVPK
    • Working voltage: 1.2 kVRMS
    • Minimum CMTI: 100 V/ns
  • Short circuit recovery
  • Thermal shutdown
  • 16-pin wide-body SOIC package with > 8-mm creepage and clearance
  • Safety-related certifications (planned):
    • 7071-VPK reinforced isolation per DIN V VDE V 0884-11:2017-01
    • 5000-VRMS isolation for 1 minute per UL 1577
    • UL certification per IEC 60950-1 and IEC 62368-1 end equipment standards
    • CQC approval per GB4943.1-2011
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UCC12051-Q1 is an automotive qualified DC/DC power module with 5-kVRMS isolation rating designed to provide efficient, isolated power to isolated circuits that require a bias supply with a well-regulated output voltage. The device integrates a transformer and DC/DC controller with a proprietary architecture to provide 500 mW (typical) of isolated power with low EMI.

The UCC12051-Q1 integrates protection features for increased system robustness. The device also has an enable pin, synchronization capability, and regulated 5-V or 3.3-V output options with headroom. The UCC12051-Q1 is a low-profile, miniaturized solution offered in a wide-body SOIC package with 2.65-mm height (typical).

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Technical documentation

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Type Title Date
* Data sheet UCC12051-Q1 High-Efficiency, Low-EMI, 5-kVRMS Isolation DC/DC Converter datasheet (Rev. A) Jun. 23, 2021
User guide UCC12050EVM-022 User's Guide (Rev. C) Jun. 25, 2021
User guide UCC12051-Q1 CISPR 25 FCC Report 2.0 (Rev. A) May 25, 2021
Functional safety information UCC12051-Q1, UCC12041-Q1 Functional Safety FIT Rate, FMD and Pin FMA May 03, 2021
Certificate UCC12051Q1 CISPR25 Certificate of Compliance PR135773 Apr. 08, 2021
More literature A simple, robust, and low-EMI solution for inverter gate-driver bias supplies Mar. 23, 2021
Technical article The value of a thin, isolated power solution Feb. 02, 2021

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Hardware development

document-generic User guide
The UCC12050EVM-022 is intended to allow designers to evaluate the performance characteristics and abilities of the UCC12050DVE. The EVM allows users to test functions of the UCC12050DVE such as: enable/disable, synchronize the device with an external clock source, detect external clock faults, and (...)
  • Easily validate all available output voltage selections
  • Test points for accurate ripple and transient response waveforms
  • EVM layout provides example of proper board layout for rated isolation and EMI perfomance
  • High efficiency, isoated power transfer of up to 500mW
  • Design is tested and provides all the (...)

Design tools & simulation


Reference designs

Isolated 5-V bias supply for automotive CISPR 25, class 5 emissions, reference design
PMP22845 — This reference design demonstrates EMI mitigation techniques required for a high frequency, reinforced 5-kVRMS isolated, 5-V bias DC/DC converter module to pass the automotive, CIPSR 25, class 5, EMC test standard. The design features a 500-mW, high efficiency bias supply with integrated (...)
document-generic Schematic document-generic User guide

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