TEA1733LT

的GreenChip III开关电源控制IC GreenChip III SMPS control IC

General description

The TEA1733T and are low cost Switched Mode Power Supply SMPS controller ICs intended for flyback topologies. The TEA1733L operates in fixed frequency mode. To reduce ElectroMagnetic Interference EMI, frequency jitter has been implemented. Slope compensation is integrated for Continuous Conduction Mode CCM operation.

Features

  SMPS controller IC enabling low-cost applications

  Large input voltage range 12 V to 30 V

  Very low supply current during start-up and restart typically 10 μA

  Low supply current during normal operation typically 0.5 mA without load

  Overpower or high/low line compensation

  Adjustable overpower time-out

  Adjustable overpower restart timer

  Fixed switching frequency with frequency jitter to reduce EMI

  Frequency reduction with fixed minimum peak current to maintain high-efficiency at low output power levels

  Slope compensation for CCM operation

  Low and adjustable OverCurrent Protection OCP trip level

  Adjustable soft start operation

  Two protection inputs e.g. for input UVP and OVP, OTP and output OVP

  IC overtemperature protection

Applications

  All applications requiring efficient and cost-effective power supply solutions to 75 W.