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UC1843A-DIE
  • UC1843A-DIE

UC1843A-DIE

ACTIVE

Space-grade, 30-V input, 1-A single-output 500-kHz PWM controller in DIE

Texas Instruments UC1843A-DIE Product Info

1 April 2026 2

Parameters

Topology

Boost, Flyback, Forward

Control mode

Current

Features

Error amplifier, Multi-topology

Duty cycle (max) (%)

100

Package

DIESALE (TD)-—-See data sheet

Features

  • Rad-Tolerant: 30 kRad (Si) TID(1)
  • Optimized for Offline and DC-to-DC Converters
  • Low Start-Up Current
  • Trimmed Oscillator Discharge Current
  • Automatic Feed Forward Compensation
  • Pulse-by-Pulse Current Limiting
  • Enhanced Load Response Characteristics
  • Undervoltage Lockout With Hysteresis
  • Double-Pulse Suppression
  • High-Current Totem-Pole Output
  • Internally Trimmed Bandgap Reference
  • Low RO Error Amplifier

(1) Radiation tolerance is a typical value based upon initial device qualification with dose rate = 10 mrad/sec. Radiation Lot Acceptance Testing is available - contact factory for details.

  • Rad-Tolerant: 30 kRad (Si) TID(1)
  • Optimized for Offline and DC-to-DC Converters
  • Low Start-Up Current
  • Trimmed Oscillator Discharge Current
  • Automatic Feed Forward Compensation
  • Pulse-by-Pulse Current Limiting
  • Enhanced Load Response Characteristics
  • Undervoltage Lockout With Hysteresis
  • Double-Pulse Suppression
  • High-Current Totem-Pole Output
  • Internally Trimmed Bandgap Reference
  • Low RO Error Amplifier

(1) Radiation tolerance is a typical value based upon initial device qualification with dose rate = 10 mrad/sec. Radiation Lot Acceptance Testing is available - contact factory for details.

Description

The UC1843A-DIE is a pin for pin compatible improved version of the UC1843-DIE. Providing the necessary features to control current-mode switched-mode power supplies.

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