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UC1843B-SP - PWM Controller

General Description

The UC1843B-SP control IC is a radiation hardened pin-for-pin compatible version of the UC1843A-SP.

Key Features

  • QML class V (QMLV) qualified, SMD 5962-86704.
  • 5962R8670412VYC:.
  • Radiation hardness assurance (RHA) up to 100-krad(Si) total ionizing dose (TID).
  • Optimized for offline and DC-to-DC converters.
  • Low start-up current (< 0.5 mA).
  • Trimmed oscillator discharge current.
  • Automatic feed forward compensation.
  • Pulse-by-pulse current limiting.
  • Enhanced load response characteristics.
  • Undervoltage lockout (UVLO) with hys.

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Other Datasheets by Texas Instruments

Part Number Description
UC1843 Current-Mode PWM Controllers
UC1843-HIREL current-mode PWM controller
UC1843-SP current-mode PWM controller
UC1843A Current-Mode PWM Controllers
UC1843A-EP Current-Mode PWM Controllers

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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www.ti.com UC1843B-SP SLUSDD4B – APRIL 2019 – REVISED DUECCE1M8B4E3RB2-S02P0 SLUSDD4B – APRIL 2019 – REVISED DECEMBER 2020 UC1843B-SP QML Class V, Radiation Hardened Current-Mode PWM Controller 1 Features • QML class V (QMLV) qualified, SMD 5962-86704 • 5962R8670412VYC: – Radiation hardness assurance (RHA) up to 100-krad(Si) total ionizing dose (TID) • Optimized for offline and DC-to-DC converters • Low start-up current (< 0.