DESCRIPTION

The IC TDA4605 controls the MOS Power Transistor and performs all necessary regulation and monitoring functions in free running flyback converters. Since good load regulation over a wide load range is attained, this IC is particularly suitable for Consumer as well as Industrial Power Supplies.

■ Fold-Back Characteristic provides Overload

Protection for External Diodes

■ Burst Operation under Short-Circuit and no

Load Conditions

■ Loop Error Protection

■ Switch-off in case of too low Line Voltage

(Under Voltage Switch-off)

■ Line Voltage Compensation of Overload Point

■ Soft-Start for smooth Start-up

■ Chip Over-Temperature Protection (Thermal

Shutdown)

■ On-Chip Parasitic Transformer Oscillation

Suppression Circuitry

■ Decrease of Regulated Voltage for low Power

Consumption