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UCC3882 - Average Current Mode Synchronous Controller

Download the UCC3882 datasheet PDF. This datasheet also includes the UCC2882 variant, as both parts are published together in a single manufacturer document.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (UCC2882-Unitrode.pdf) that lists specifications for multiple related part numbers.

Datasheet Details

Part number UCC3882
Manufacturer Unitrode
File Size 492.05 KB
Description Average Current Mode Synchronous Controller
Datasheet download datasheet UCC3882 Datasheet

General Description

The UCC3882 combines high precision reference and voltage monitoring circuitry with average current mode PWM synchronous rectification controller circuitry to power high-end microprocessors with a minimum of external components.

The UCC3882 converts 5V or 12V to an adjustable output ranging from 1.8VDC to 2.05VDC in 50mV steps and 2.1VDC to 3.5VDC in 100mV steps with 1% DC system accuracy.

The DAC output voltage is directly compatible with Intel’s 5-bit VID code (Table 1) which covers 1.3V to 2.05V in 50mV steps and 2.1V to 3.5V in 100mV steps.

Overview

UCC2882/-1 UCC3882/-1 Average Current Mode Synchronous Controller With 5-Bit.

Key Features

  • Combined DAC/Voltage Monitor and PWM with Synchronous Rectification Functions.
  • 5-Bit Digital-to-Analog (DAC) Converter.
  • 1% DAC/Reference Combined Accuracy.
  • Compatible with 5V and 12V Systems and 12V-only Systems.
  • Low Offset Current Sense Amplifier.
  • Programmable Oscillator Frequency Practical to 700kHz.
  • Foldback Current Limiting.
  • Overvoltage and Undervoltage Fault Windows.
  • 2Ω Totem Pole Outputs with Programmable Dea.