TI UCC2581D

升压，升压/降压升压，反激，正激转换器6.8V ~ 15V

Overview

The UCC3581 voltage mode pulse width modulator is designed to control low power isolated DC - DC converters in applications such as Subscriber Line Power (ISDN I.430). Primarily used for single switch forward and flyback converters, the UCC3581 features BiCMOS circuitry for low startup and operating current, while maintaining the ability to drive power MOSFETs at frequencies up to 100kHz. The UCC3581 oscillator allows the flexibility to program both the frequency and the maximum duty cycle with two resistors and a capacitor. A TTL level input is also provided to allow synchronization to an external frequency source.

The UCC3581 is available in 14-pin plastic and ceramic dual-in-line packages and in a 14-pin narrow body small outline IC package (SOIC). The UCC1581 is specified for operation from –55°C to +125°C, the UCC2581 is specified for operation from –40°C to +85°C, and the UCC3581 is specified for operation from 0°C to +70°C.

Features

Tube Package
Transistor Driver Outputs
Switching Frequency: Up to 100kHz
Current Limit, Enable, Frequency Control, Soft Start
PULSE WIDTH MODULATION
Max Duty Cycle: 87 %
Frequency: 100kHz

Surface Mount Mounting Type

Applications

There are a lot of Texas Instruments
UCC2581D DC to DC converter applications.

• Ball screw pair
• Computer application technology
• Network technology
• Automation technology
• CMM
• Various precision measuring instruments
• Various precision measuring detectors
• Flaw detection equipment
• Balance equipment
• Industrial robots