General description
●The TEA1733T and TEA1733LT are low cost Switched Mode Power Supply (SMPS) controller ICs intended for flyback topologies. The TEA1733(L) 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.
