Datasheet > 10396-T022

10396-T022

更新时间： 2022-03-30 03:06:38

品牌	Logo	应用领域
凌特 - Linear		转换器开关
页数	文件大小	规格书
24页	313K
描述
100VIN Micropower Isolated Flyback Converter with 150V/260mA Switch

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10396-T022 数据手册

LT8300

100V Micropower Isolated

Flyback Converter with

150V/260mA Switch

DescripTion

FeaTures

TheLT^®8300isamicropowerhighvoltageisolatedflyback

converter. By sampling the isolated output voltage directly

from the primary-side flyback waveform, the part requires

nothirdwindingoropto-isolatorforregulation.Theoutput

voltage is programmed with a single external resistor. In-

ternalcompensationandsoft-startfurtherreduceexternal

component count. Boundary mode operation provides a

small magnetic solution with excellent load regulation.

LowrippleBurstModeoperationmaintainshighefficiency

at light load while minimizing the output voltage ripple.

A 260mA, 150V DMOS power switch is integrated along

withallhighvoltagecircuitryandcontrollogicintoa5-lead

ThinSOT™ package.

6V to 100V Input Voltage Range

260mA, 150V Internal DMOS Power Switch

Low Quiescent Current:

70µA in Sleep Mode

330µA in Active Mode

Boundary Mode Operation at Heavy Load

Low-Ripple Burst Mode^®Operation at Light Load

Minimum Load <0.5% (Typ) of Full Output

Set with a Single External Resistor

OUT

No Transformer Third Winding or Opto-Isolator

Required for Regulation

Accurate EN/UVLO Threshold and Hysteresis

Internal Compensation and Soft-Start

5-Lead TSOT-23 Package

The LT8300 operates from an input voltages range of 6V

to 100V and can deliver up to 2W of isolated output power.

The high level of integration and the use of boundary

and low ripple burst modes result in a simple to use, low

componentcount, andhighefficiencyapplicationsolution

for isolated power delivery.

applicaTions

Isolated Telecom, Automotive, Industrial, Medical

Power Supplies

Isolated Auxiliary/Housekeeping Power Supplies

L, LT, LTC, LTM, Linear Technology, the Linear logo and Burst Mode are registered trademarks

and ThinSOT is a trademark of Linear Technology Corporation. All other trademarks are the

property of their respective owners. Protected by U.S. Patents, including 5438499, 7463497,

and 7471522.

Typical applicaTion

5V Micropower Isolated Flyback Converter

Efficiency vs Load Current

100

OUT

= 36V

4:1

36V TO 72V

1mA TO 300mA

•

2.2µF

300µH

19µH

= 48V

47µF

•

= 72V

LT8300

EN/UVLO

–

OUT

40.2k

210k

GND

8300 TA01a

100

150

200

250

300

LOAD CURRENT (mA)

8300 TA01b

8300f

12 3 4 5 6 7...24

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