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Product details

Parameters

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 open-in-new Find other Isolated DC/DC converters & modules

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Features

  • High-efficiency DC-DC converter with integrated transformer technology
  • Meets CISPR32 Class B EMI limits without ferrite beads across entire load range on a 2-layer PCB
  • Robust isolation barrier:
    • Isolation rating: 3 kVRMS
    • Surge capability: 8 kVPK
    • Working voltage: 850 VRMS
    • CMTI (typical): ±100 V/ns
  • Output power (typical): 500-mW
  • Regulated 5.0-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
  • Short circuit recovery
  • Thermal shutdown
  • 16-pin wide-body SOIC package with > 8-mm creepage and clearance
  • Extended temperature range: –40ºC to 125ºC
  • Planned safety-related certifications:
    • 3000-VRMS isolation for 1 minute per UL 1577
    • CSA certification per IEC 60950-1, IEC 62368- 1 and IEC 60601-1 end equipment standards
    • CQC approval per GB4943.1-2011

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Description

UCC12040 is a DC/DC converter with 3-kVRMS basic 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 high efficiency and low EMI.

The UCC12040 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 UCC12040 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
* Datasheet UCC12040 High-Efficiency, Low-EMI, 3-kVRMS Basic Isolation DC-DC Converter datasheet (Rev. A) Apr. 17, 2020
White papers 絶縁バリアを通過する電力:絶縁DC/DCバイアス電源の状況 Jan. 28, 2020
White papers Power Through the Isolation Barrier: The Landscape of Isolated DC/DC Bias Power Dec. 11, 2019

Design & development

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Hardware development

EVALUATION BOARDS Download
document-generic User guide
99
Description
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 (...)
Features
  • 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

SIMULATION TOOLS Download
PSpice® for TI design and simulation tool
PSPICE-FOR-TI — PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
Features
  • Leverages Cadence PSpice Technology
  • Preinstalled library with a suite of digital models to enable worst-case timing analysis
  • Dynamic updates ensure you have access to most current device models
  • Optimized for simulation speed without loss of accuracy
  • Supports simultaneous analysis of multiple products
  • (...)

Reference designs

REFERENCE DESIGNS Download
High accuracy analog input module reference design with 16-bit 1-MSPS dual simultaneous-sampling ADC
TIDA-01576 — This reference design accurately measures 16-channel AC voltage and current inputs using a precision 16-bit SAR ADC over a wide input range. This range covers protection and measurement requirements (including sampling requirements as per IEC 61850-9-2), which simplifies system design and improves (...)
document-generic Schematic document-generic User guide

CAD/CAE symbols

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Ordering & quality

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