Datasheet > LND081A

LND081A

更新时间： 2024-10-19 12:00:31

品牌	Logo	应用领域
LINEAR_DIMENSIONS		/
页数	文件大小	规格书
1页	182K
描述
Up to 277VAC/347VAC/1000VAC True One-Wire Adjustable Offline Voltage Sources

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数据手册

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LND081A 数据手册

PRELIMINARY DATA SHEET

LND081A/B/C

Up to 277VAC/347VAC/1000VAC True One-Wire

Adjustable Offline Voltage Sources

FEATURES

GENERAL DESCRIPTION

The LND081A/B/C are single wire high voltage

conductor, low cost solutions for deriving from AC offline

voltages a DC output between 2.7V and 100V with mA’s

to 100’s of mA’s of current.

 Adjustable offline voltage source

 2.7V to 100V adjustable output voltage

 100’s of mA drive capability

 Lowest cost solution

 LND081A/B include full bridge diodes

 Universal Input:

The LND081A are for 28VAC, 48VAC, 120VAC or

277VAC sources and include the input full bridge diodes.

The LND081B is for 347VAC applications and the

LND081C is for up to 1000VAC but require external full

bridge diodes.

 28VAC, 48VAC or 120VAC (A)

 Up to 277VAC (A), 347VAC(B)

 Up to 1000VAC (C)

The LND081A are packaged in 8 pin EPAD SOIC

packages. LND081B/C are available as bare die.

 One wire HV conductor eliminates

need for multiple input wires

 Resistor programmable output voltage

against a diode threshold

EQUIVALENT CIRCUIT

 Replaces standard transformer or AC

divider solutions

 Lower leakage than MOSFET, IGBT,

BIPOLAR, XFMR or CAP solutions

 8 pin EPAD-SOIC Package

APPLICATIONS

 Offline uC or PLC voltage supplies

 Industrial AC communications loop

derived supplies

Typical Waveforms

 Electric grid remote supplies for

monitoring equipment

 Emergency lighting, monitoring

equipment, industrial plant supplies

 White goods

No Output Capacitor

120VAC Input – Dark Blue

Output – Light Blue

TYPICAL APPLICATION CIRCUIT

0.1uF, 100V

or Fuse

2.7 to 100V

VOUT

AC+

100uF Output Capacitor

85VAC Input – Light Blue

Output 12VDC – Dark Blue

AC-

VREF

GND

85- 277VAC

 Linear Dimensions Semiconductor Inc.  22620 Ricardo Rd, Cupertino CA 95014 USA  tel 312.321.1810  fax 312.321.1830  www.lineardimensions.com 

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