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TEA1733CT

NXP
Part Number TEA1733CT
Manufacturer NXP
Description GreenChip SMPS controller
Published Feb 1, 2016
Detailed Description TEA1733CT GreenChip SMPS control IC Rev. 2 — 16 July 2013 Product data sheet 1. General description The TEA1733CT is a...
Datasheet PDF File TEA1733CT PDF File

TEA1733CT
TEA1733CT

Overview
TEA1733CT GreenChip SMPS control IC Rev.
2 — 16 July 2013 Product data sheet 1.
General description The TEA1733CT is a low cost Switched Mode Power Supply (SMPS) controller IC intended for flyback topologies.
It 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.
The TEA1733CT includes OverPower Protection (OPP).
This enables the controller to operate under overpower situations for a limited amount of time.
Two pins, VINSENSE and PROTECT, are reserved for protection purposes.
Input UnderVoltage Protection (UVP) and OverVoltage Protection (OVP), output OVP and OverTemperature Protection (OTP) can be implemented using a minimal number of external components.
At low power levels the primary peak current is set to 25 % of the maximum peak current and the switching frequency is reduced to limit 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 TEA1733CT enables low cost, highly efficient and reliable supplies for power requirements up to 75 W to be designed easily and with a minimum number of external components.
2.
Features and benefits 2.
1 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 A)  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 NXP Semiconductors TEA17...


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