Semiconductor Group

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05.95

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The TDA 4817 contains all functions for designing electronic ballasts and switched-mode power

supplies with sinusoidal line current consumption and a power factor approaching 1.

The TDA 4817 controls a boost converter as an active harmonic filter in a discontinuous (triangular

shaped current) mode with variable frequency.

A typical application is in electronic ballasts, especially when a large number of such lamps are

concentrated on one line supply point.

The output voltage of this filter is regulated with high efficiency. Therefore the device can be easily

The TDA 4817 is an 8-pin-economy-version of the TDA 4814 A without reference voltage output

and start/stop monitoring circuit.

Type

Ordering Code

Package

TDA 4817

Q67000-A8298

P-DIP-8-1

TDA 4817 G

Q67000-A8299

P-DSO-8-1 (SMD)

Power Factor Controller

IC for High Power Factor and

Active Harmonic Filtering

Advance Information

Bipolar IC

TDA 4817

P-DIP-8-1

P-DSO-8-1

Features

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IC for sinusoidal line-current consumption

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Power factor approaching 1

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Controls boost converter as an active harmonics filter

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Direct drive of SIPMOS transistor

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Zero crossing detector for discontinuous operation mode

with variable frequency

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110/220 V AC operation without switchover

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Standby current consumption of 0.5 mA

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