TI UCC28700DBVR

隔离9V ~ 35V

Overview

The UCC28700 family of flyback power supply controllers provides Constant-Voltage (CV) and Constant-Current (CC) output regulation without the use of an optical coupler. The devices process information from the primary power switch and an auxiliary flyback winding for precise control of output voltage and current. Low start-up current, dynamically controlled operating states and a tailored modulation profile support very low standby power without sacrificing start-up time or output transient response.

The controllers have a maximum switching frequency of 130 kHz and always maintain control of the peak-primary current in the transformer. Protection features help keep primary and secondary component stresses in check. The UCC28700 allows the level of cable compensation to be programmed. The UCC28701, UCC28702, and UCC28703 devices allow remote temperature sensing using a Negative Temperature Coefficient (NTC) resistor while providing fixed cable-compensation levels.

Features

Isolated Output Isolation
Packaged with SOT-23-6
Switching Frequency at 1kHz~130kHz
With 6 pins
Output Current at 25mA

Surface Mount Mounting Type

Applications

There are a lot of Texas Instruments
UCC28700DBVR AC DC Converters applications.

• AC/DC Adaptors/Chargers for E-books
• Adaptors for Portable Media Player
• Adaptors for DSCs
• Set-top boxes
• DVD players
• Records
• Linear Adapter Replacements
• Chargers for cell/cordless phones
• PDAs
• MP3