UC3584DWTR

更新时间： 2024-12-01 13:15:07

品牌	Logo	应用领域
德州仪器 - TI		稳压器
页数	文件大小	规格书
7页	155K
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中文翻译

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数据手册

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UC3584DWTR 数据手册

UC1584

UC2584

UC3584

Secondary Side Synchronous Post Regulator

FEATURES

DESCRIPTION

• Practical Operation at Switching

Frequencies up to 1MHz

The UC3584 is a low voltage, Secondary Side Synchronous Post Regula-

tor. It is intended to be used for auxiliary output voltage regulation in single

secondary winding, multiple output power supplies (for more details refer

to the Application Section of this Data sheet). The UC3584 is most suited

for systems where the main output is regulated between 5V and 14V. Out-

put voltages regulated by the UC3584 can range from virtually 0V up to

the output voltage of the main output.

• Wide Band Error Amplifier

• Undervoltage Lockout with Hysteresis

• Output Active Low During UVLO

• Soft Start/Maximum Duty Cycle

Control

Auxiliary output voltage regulation with the UC3584 uses leading edge

modulation making it compatible to primary side peak current or voltage

mode control. The UC3584 clock circuit is synchronized to the switching

frequency utilizing the falling edge of the transformer’s secondary winding

waveform.

• Trimmed Bandgap Reference

• Internally Regulated 15V Boost

Supply

• Short Circuit Protection with

Programmable Delay

TYPICAL APPLICATION DIAGRAM.

7µH

MAIN

33µH

COILTRONICS

IRFR024

OS-CON

330µF

1µF

390µF

3.3V

AUX

1500pF

0.1µF

CSHD

10-45L

100Ω

1.5W

30.1kΩ

170kHz

PUSH-PULL

4.75kΩ

1.33kΩ

1kΩ

SYNC 16

CT 15

220pF

3300pF

100pF

120pF

24.3kΩ

3.57kΩ

3.3Ω

15kΩ

20kΩ

RT 14

1N4148

COMP

0.1µF

VREG 13

1000pF

10µF

CDLY

GND

0.1µF

VCC 12

SOLID

TANTALUM

10BQ040

33µH

SRC

COLTRONICS

BST2 11

PGND 10

1.5µF

470µF

OUT

VFLT

BST1

1N4148

UDG-99062

03/99

12 3 4 5 6 7

中文翻译

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