TEA1733MT

的GreenChip开关电源控制IC可调的过载超时 GreenChip SMPS control IC Adjustable overpower time-out

General description

The is a low cost Switched Mode Power Supply SMPS controller IC intended for flyback topologies. It operates in fixed frequency mode. Frequency jitter has been implemented to reduce ElectroMagnetic Interference EMI. Slope compensation is integrated for Continuous Conduction Mode CCM operation. The TEA1733MT IC includes OverPower Protection OPP. This enables the controller to

operate under overpower situations for a limited amount of time

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 0.55 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