Texas Instruments UCC1581/UCC2581/UCC3581 Micropower Voltage Mode PWM Controller Datasheet

The UCC3581 is a voltage mode pulse width modulator designed to control low power isolated DC-DC converters. It features low startup and operating current, programmable minimum and maximum duty cycle, 1A peak source and sink output current, etc.

Texas Instruments UCC1581/UCC2581/UCC3581 Micropower Voltage Mode PWM Controller Datasheet - cover page
Brand
UCC1581
Document type
Datasheet
Language
English
Pages
9
File format
PDF
File size
240 KB
Published
01 August, 2012
Updated
29 September, 2023
MD5 checksum
7DE382129A698409C19ACA30632A62CF
PDF
Texas Instruments UCC1581/UCC2581/UCC3581 Micropower Voltage Mode PWM Controller Datasheet PDF

About this manual

The document describes the UCC1581, UCC2581, and UCC3581 as voltage mode pulse width modulators designed to control low power isolated DC-DC converters. Key features include low startup and operating current, programmable minimum and maximum duty cycles with cycle skipping for light load efficiency, and an on-board 4.0V logic supply.

What's inside

  • Features
  • Description
  • Absolute Maximum Ratings
  • Ordering Information
  • Electrical Characteristics
  • Pin Descriptions
  • Application Information

Specifications

Startup Current85 µA (Typ)
Operating Supply Current300 µA (Typ)
Output Current1A Peak Source and Sink
Operating FrequencyUp to 100kHz
Regulated VDD Voltage7.5V (Typ)

Frequently asked questions

What is the operating temperature range for the UCC1581?

The UCC1581 is specified for operation from -55°C to +125°C.

What is the operating temperature range for the UCC3581?

The UCC3581 is specified for operation from 0°C to +70°C.

What packages are available for these controllers?

They are available in 14-pin plastic and ceramic dual-in-line packages and a 14-pin narrow body small outline IC package (SOIC).

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