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Description
CONTROL CIRCUIT FOR SWITCH MODE POWER SUPPLIES USING MOS TRANSISTORSMOS
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Features
● Fold-back characteristic provides overload protection for external components
● Burst operation under short-circuit conditions
● Loop error protection
● Switch-off if line voltage is too low (undervoltage switch-off)
● Line voltage compensation of overload point
● Soft-start for quiet start-up
● Chip-over temperature protection (thermal shutdown)
● On-chip parasitic transformer oscillation suppression circuitry
The IC TDA 4605-1 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 applicable tor consumer and industrial power supplies.
The serial circuit of power transistor and primary winding of the flyback transformer is connected to the input voltage. During the switch - on period of the transistor, energy is stored in the transformer and during the switch - off period it is fed to the load via the secondary winding. By varying switch-on time of the power transistor, the IC controls each portion of energy transferred to the secondary side such that the output voltage remains nearly independent ot load variations.
The required control information is taken from the input voltage during the switch-on period and from a regulation winding during the switch-off period.
Preview of the first 3 pages of the data sheet
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10000 buyer reviews from United States
Brian Taylor
Length of registration:7 years
I recently purchased the integrated circuit TDA4605-3 from Utsource and I am very pleased with the product. The circuit arrived in perfect condition and was very easy to install. After testing the circuit, I found that it worked perfectly and was able to meet all my needs. The circuit also had a very low power consumption, which was a great bonus. Overall, I am very satisfied with the product and
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03/17/2023
Arthur Pieters
Length of registration:4 years
thanks
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04/28/2020
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TDA4605
TDA4605 has several brands around the world that may have alternate names for TDA4605 due to regional differences or acquisition. TDA4605 may also be known as the following names:
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Minimum: 3
Total Price:
Unit Price:0.78008
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