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UC1845A-SP - Current-Mode PWM Controllers

General Description

The UC1845A-SP control IC is a radiation hardened pin-for-pin compatible version of the UC184x family.

It is primarily suited for Satellites and other harsh environment applications.

Key Features

  • 1 QML Class V (QMLV) Qualified, SMD 5962-86704.
  • 5962P8670411Vxx: (1).
  • Radiation Hardness Assurance (RHA) up to 30-krad(Si) Total Ionizing Dose (TID).
  • Passes Functional and Specified PostRadiation Parametric Limits at 45 krad at LDR (10 mrad(Si)/s) per 1.5× Over Test as Defined in MIL-STD-883 Test Method 1019.9 Paragraph 3.13.3.b.
  • Exhibits Low Dose Rate Sensitivity (2) but Remains Within the Pre-Radiation Electrical Limits at 30-krad Total Dose Level,.

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Other Datasheets by Texas Instruments

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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Product Folder Order Now Technical Documents Tools & Software Support & Community UC1845A-SP SLUSC14A – MAY 2015 – REVISED FEBRUARY 2019 UC1845A-SP QML class V, radiation hardened current-mode PWM controller 1 Features •1 QML Class V (QMLV) Qualified, SMD 5962-86704 • 5962P8670411Vxx: (1) – Radiation Hardness Assurance (RHA) up to 30-krad(Si) Total Ionizing Dose (TID) – Passes Functional and Specified PostRadiation Parametric Limits at 45 krad at LDR (10 mrad(Si)/s) per 1.5× Over Test as Defined in MIL-STD-883 Test Method 1019.9 Paragraph 3.13.3.b – Exhibits Low Dose Rate Sensitivity (2) but Remains Within the Pre-Radiation Electrical Limits at 30-krad Total Dose Level, as Allowed by MIL-STD-883, TM1019 • Optimized for DC-to-DC Converter Applications • Low Start-Up Current (< 0.