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UC1825A - HIGH-SPEED PWM CONTROLLER

Download the UC1825A datasheet PDF. This datasheet also covers the UC1823A variant, as both devices belong to the same high-speed pwm controller family and are provided as variant models within a single manufacturer datasheet.

General Description

The UC3823A and UC3823B and the UC3825A and UC3825B family of PWM controllers are improved versions of the standard UC3823 and UC3825 family.

Performance enhancements have been made to several of the circuit blocks.

Key Features

  • Improved versions of the UC3823/UC3825 PWMs.
  • Compatible with voltage-mode or current-mode control methods.
  • Practical operation at switching frequencies to 1 MHz.
  • 50-ns propagation delay to output.
  • High-current dual totem pole outputs (2-A peak).
  • Trimmed oscillator discharge current.
  • Low 100-μA startup current.
  • Pulse-by-pulse current limiting comparator.
  • Latched overcurrent comparator with full cycle restart 2 Descr.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (UC1823A-etcTI.pdf) that lists specifications for multiple related part numbers.

📁 Similar Datasheet

Part Number Description Manufacturer
UC1825 High Speed PWM Controller Unitrode
UC1823 High Speed PWM Controller Unitrode
UC1832 Precision Low Dropout Linear Controllers Unitrode
UC1834 High Efficiency Linear Regulator Unitrode
UC1835 High Efficiency Regulator Controller Unitrode

Other Datasheets by Texas Instruments

Part Number Description
UC1825A-SP Radiation Hardened High-Speed PWM Controller
UC1825-SP HIGH-SPEED PWM CONTROLLER
UC1825B-SP Radiation Hardened High-Speed PWM Controller
UC1823A HIGH-SPEED PWM CONTROLLER
UC1824 HIGH SPEED PWM CONTROLLER

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.

View original datasheet text
UC1823A, UC2823A, UC2823B, UC3823A, UC3823B UC1825A, UC2825A, UC2825B, UC3825A, UC3825B SLUS334F – AUGUST 1995 – REVISED AUGUST 2022 High-Speed PWM Controller 1 Features • Improved versions of the UC3823/UC3825 PWMs • Compatible with voltage-mode or current-mode control methods • Practical operation at switching frequencies to 1 MHz • 50-ns propagation delay to output • High-current dual totem pole outputs (2-A peak) • Trimmed oscillator discharge current • Low 100-μA startup current • Pulse-by-pulse current limiting comparator • Latched overcurrent comparator with full cycle restart 2 Description The UC3823A and UC3823B and the UC3825A and UC3825B family of PWM controllers are improved versions of the standard UC3823 and UC3825 family.