1. Out of the Box

1.1 Box Contents

TEA2096DB2201 add-on board

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1.2 Required Equipment

AC main source
Power analyzer
Electronic load
Oscilloscope for observing operation behavior
Current probe

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1.3 Additional Hardware

An existing switch mode power supply board with a resonant topology

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NextGet Hardware

2. Get Hardware

2.1 Overview

The TEA2096DB2201 add-on evaluation board contains a TEA2096T SR controller in an SO-8 package and two 150 V / 9.3 mΩ MOSFETs in PD-TSON-8 package.

The TEA2096T is a dedicated controller IC for synchronous rectification on the secondary side of resonant converters. It incorporates two stages for sensing and driving the SR MOSFETs, which rectify the outputs of the central tap secondary transformer windings. The TEA2096T has a drain-source voltage rating of 200 V.

These features make the evaluation board suitable for resonant applications with an output voltage of up to 60 V.

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NextConnecting and Measuring the Board

3. Connecting and Measuring the Board

3.1 Connecting the Board to an Existing SMPS

Connect the pads SECA and SECB to the secondary outputs of the transformer. Connect the GND pad to the power ground of the main board. Use thick wires for the SECA, SECB and GND connections, because the currents in these tracks can be high.

For output voltages up to 38 V, the XV connection can be connected to the Vout of the main board. For output voltages of more than 38 V, a series regulator is required to reduce the supply voltage of the TEA2096T to below 38 V. When a series regulator is used, a trade-off can be made between the dissipation in the regulator and the dissipation in the TEA2096T.