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TDA4605 Datasheet

  • TDA4605

  • Control IC for Switched-Mode Power Supplies using MOS-Transi...

  • 21頁

  • INFINEON   INFINEON

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Control IC for Switched-Mode Power Supplies
using MOS-Transistors
TDA 4605
Bipolar IC
Features
q
Fold-back characteristic provides overload protection for
q
q
q
q
q
q
q
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
P-DIP-8-1
Type
TDA 4605
Ordering Code
Q67000-A8078
Package
P-DIP-8-1
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.
Semiconductor Group
33
06.94

TDA4605 產(chǎn)品屬性

  • 2,000

  • 集成電路 (IC)

  • PMIC - 電源控制器，監(jiān)視器

  • -

  • 電源控制器

  • -

  • -

  • -

  • -20°C ~ 85°C

  • 通孔

  • 8-DIP（0.300"，7.62mm）

  • 8-DIP

  • 管件

  • Q1660517

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