Datasheet

Version 2.1 4 22 Feb 2005

Type Ordering Code Package

TDA4863-2 Q67040-S4620 PG-DIP-8-4

TDA4863-2G Q67040-S4621 PG-DSO-8-3

Power-Factor Controller (PFC)

IC for High Power Factor

and Low THD

TDA4863-2

Final Data Boost Controller

PG-DIP-8-4

PG-DSO-8-3

1Overview

1.1 Features

• IC for sinusoidal line-current consumption

• Power factor achieves nearly 1

• Controls boost converter as active harmonic

filter for low THD

• Start up with low current consumption

• Zero current detector for discontinuous

operation mode

• Output overvoltage protection

• Output undervoltage lockout

• Internal start up timer

• Totem pole output with active shut down

• Internal leading edge blanking LEB

• Pb-free lead plating ; RoHS compliant

1.2 Improvements Referred to TDA 4862 and TDA 4863

• Suitable for universal input applications with low THD at low load conditions

• Very low start up current

• Accurate OVR and V

ISENSEmax

threshold

• Competition compatible V

thresholds

• Enable threshold referred to V

VSENSE

• Compared to TDA4863 a bigger MOS Transistor can be driven (see 2.10)