NXP TEA1731LTS/1H

Изолированный12В ~ 30В75 W

Overview

The TEA1731LTS is a low cost Switched Mode Power Supply (SMPS) controller IC intended for flyback topologies. The TEA1731LTS operates in peak current and frequency control mode. Frequency jitter has been implemented to reduce ElectroMagnetic Interference(EMl). Slope compensation is integrated for Continuous Conduction Mode (CCM) operation. The TEA1731LTS IC features OverPower Protection(OPP). The controller accepts an overpower situation for a limited amount of time. One pin is reserved for protection purposes. Over Temperature Protection (OTP) can be implemented with a minimal number of external components. At low-power levels, the primary peak current is set to 25 % of the maximum peak current. The switching frequency is reduced to limit the switching losses. The combination of fixed frequency operation at high output power and frequency reduction at low output power provides high efficiency over the total load range. The TEA1731LTS makes the design of low cost, highly eficient and reliable supplies for power requirements up to 75 W easier by requiring a minimum number of external components.

Applications ■All applications that require an efficient and cost-effective power supply solution up to 75W.

Features

Applications

• AC/DC Adaptors/Chargers for PDAs
• 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