Product Summary

The TDA4605-2 is a control IC for switched-mode power supplies using MOS-transistors. Because of the fact that a wide load range is achieved, this IC is applicable for consumer as well as industrial power supplies. The serial circuit and primary winding of the flyback transformer are connected in series to the input voltage. During the switch-on period of the transistor, energy is stored in the transformer. During the switch-off period the energy is fed to the load via the secondary winding.

Parametrics

TDA4605-2 absolute maximum ratings: (1)Supply voltage: 15.5V; (2)ambient temperature: -20 to 85℃; (3)junction environment: 100K/W; (4)junction package: 70K/W.

Features

TDA4605-2 features: (1)Fold-back characteristics provides overload protection for external components; (2)Burst operation under secondary short-circuit condition implemented; (3)Protection against open or a short of the control loop; (4)Switch-off if line voltage is too low (undervoltage switch-off); (5)Line voltage depending compensation of fold-back point; (6)Soft-start for quiet start-up without noise generated by the transformer; (7)Chip-over temperature protection implemented (thermal shutdown); (8)On-chip ringing suppression circuit against parasitic oscillations of the transformer.

Diagrams

TDA4605-2 block diagram

Image Part No Mfg Description Data Sheet Download Pricing
(USD)		 Quantity
TDA4605-2
TDA4605-2
Infineon Technologies
Soft Switching PWM Controllers CTRL IC FOR SWITCH MODE PWR SUPPLIES
Data Sheet
0-1390: $0.68
1390-2000: $0.64
2000-8000: $0.61
8000-12000: $0.59
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