Datasheet4U Logo Datasheet4U.com

UCC3882-1 Datasheet AVERAGE CURRENT MODE SYNCHRONOUS CONTROLLER

Manufacturer: Texas Instruments

Download the UCC3882-1 datasheet PDF. This datasheet also includes the UCC3882 variant, as both parts are published together in a single manufacturer document.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (UCC3882-etcTI.pdf) that lists specifications for multiple related part numbers.

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

BLOCK DIAGRAM CAM 4 CAO 6 OVP OVP (+ 17.5%) VSNS 1 VFB 15 COMP 16 ISOUT 6 IS− 8 IS+ 7 D0 27 D1 26 D2 24 D3 23 D4 22 Current Sense Amplifier X16 Output Offset 5 V REF D/C Converter 2 V − 3.5 V, 100 mV or 1.3 V − 2.05 V, 50 mV Voltage Amplifier Current Amplifier OV UV 3V OV (+ 9%) UV (−9%) SQ R 1.37 V Foldback Current Limit VSNS Turn On Delay RT Anti Cross Condition Turn On Delay RT OSC 4.3 V/4.2 V VIN UVLO 10.5 V/10 V 5V REF 2 PWRGD 19 VDRVHI 18 GATEHI 12 PGND 10 VDRVLO 11 GATELO 17 EN 9 VIN 21 VREF 28 GND 20 COMMAND 14 13 CT RT UDG−97047−1 1 Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

Overview

www.ti.com UCC3882/-1 SLUS294C – MARCH 1999 – REVISED FEBRUARY 2010 AVERAGE CURRENT MODE SYNCHRONOUS CONTROLLER WITH 5-BIT DAC Check for Samples:.

Key Features

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

📁 Similar Datasheet

Brand Logo Part Number Description Manufacturer
Unitrode Logo UCC3882-1 Average Current Mode Synchronous Controller Unitrode

More Datasheets from Texas Instruments

Part Number Description
UCC3882 AVERAGE CURRENT MODE SYNCHRONOUS CONTROLLER
UCC3884 Frequency Foldback Current Mode PWM Controller
UCC3800 Low-Power BiCMOS Current-Mode PWM Controllers
UCC3801 Low-Power BiCMOS Current-Mode PWM Controllers
UCC3802 Low-Power BiCMOS Current-Mode PWM Controllers
UCC3803 Low-Power BiCMOS Current-Mode PWM Controllers
UCC3804 Low-Power BiCMOS Current-Mode PWM Controllers
UCC3805 Low-Power BiCMOS Current-Mode PWM Controllers
UCC38050 Transition Mode PFC Controller
UCC38051 Transition Mode PFC Controller