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UC2825 - High Speed PWM Controller

Datasheet Summary

Description

The UC1825 family of PWM control ICs is optimized for high frequency switched mode power supply applications.

Particular care was given to minimizing propagation delays through the comparators and logic circuitry while maximizing bandwidth and slew rate of the error amplifier.

Features

  • Compatible with Voltage or Current Mode Topologies.
  • Practical Operation Switching Frequencies to 1MHz.
  • 50ns Propagation Delay to Output.
  • High Current Dual Totem Pole Outputs (1.5A Peak).
  • Wide Bandwidth Error Amplifier.
  • Fully Latched Logic with Double Pulse Suppression.
  • Pulse-by-Pulse Current Limiting.
  • Soft Start / Max. Duty Cycle Control.
  • Under-Voltage Lockout with Hysteresis.
  • Low Start Up Current (1.1mA).

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Datasheet preview – UC2825

Datasheet Details

Part number UC2825
Manufacturer Unitrode
File Size 1.41 MB
Description High Speed PWM Controller
Datasheet download datasheet UC2825 Datasheet
Additional preview pages of the UC2825 datasheet.

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Full PDF Text Transcription

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High Speed PWM Controller application INFO available UC1825 UC2825 UC3825 FEATURES • Compatible with Voltage or Current Mode Topologies • Practical Operation Switching Frequencies to 1MHz • 50ns Propagation Delay to Output • High Current Dual Totem Pole Outputs (1.5A Peak) • Wide Bandwidth Error Amplifier • Fully Latched Logic with Double Pulse Suppression • Pulse-by-Pulse Current Limiting • Soft Start / Max. Duty Cycle Control • Under-Voltage Lockout with Hysteresis • Low Start Up Current (1.1mA) DESCRIPTION The UC1825 family of PWM control ICs is optimized for high frequency switched mode power supply applications. Particular care was given to minimizing propagation delays through the comparators and logic circuitry while maximizing bandwidth and slew rate of the error amplifier.
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