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General description

The TEA2208T is the first product of a new generation of active bridge rectifier controllers

replacing the traditional diode bridge.

Using the TEA2208T with low-ohmic high-voltage external MOSFETs significantly

improves the efficiency of the power converter as the typical rectifier diode-forward

conduction losses are eliminated. Efficiency can improve up to about 1.4 at 90 V (AC)

mains voltage.

The TEA2208T is designed in a silicon-on insulator (SOI) process.

Features and benefits

Efficiency features

? Forward conduction losses of the diode rectifier bridge are eliminated

? Very low IC power consumption (2 mW).

Application features

? Integrated high-voltage level shifters

? Directly drives all four rectifier MOSFETs

? Very low external part count

? Integrated X-capacitor discharge (2 mA)

? Self-supplying

? Full-wave drive improving total harmonic distortion (THD)

? S014 package

Control features

? Undervoltage lockout (UVLO) for high-side and low-side drivers

? Drain-source overvoltage protection for all external power MOSFETs

? Gate pull-down currents at start-up for all external power MOSFETs