Datasheet > HCPL-3700000E

HCPL-3700000E

更新时间： 2024-09-20 08:12:03

品牌	Logo	应用领域
安华高科 - AVAGO		输出元件
页数	文件大小	规格书
14页	460K
描述
1 CHANNEL LOGIC OUTPUT OPTOCOUPLER, 0.300 INCH, LEAD FREE, DIP-8

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HCPL-3700000E 数据手册

HCPL-0370,HCPL-3700,HCPL-3760

AC/DC to Logic Interface Optocouplers

DataSheet

Description

Features

The HCPL-0370/3700 and HCPL-3760 are voltage/

currentthresholddetectionoptocouplers.TheHCPL-

3760 is a low-current version of the HCPL-0370/

3700. To obtain lower current operation, the HCPL-

3760 uses a high-efficiency AlGaAs LED which

provides higher light output at lower drive currents.

ThedevicesutilizethresholdsensinginputbufferICs

which permit control of threshold levels over a wide

rangeofinputvoltageswithasingleexternalresistor.

• Standard (HCPL-0370/ 3700) and low input current

(HCPL-3760) versions

• AC or DC input

• Programmable sense voltage

• Hysteresis

• Logic compatible output

• Thresholds guaranteed over temperature

• Thresholds independent of LED optical parameters

• Recognized under UL 1577 and CSA approved for

dielectric withstand proof test voltage of 3750 Vac,

1 minute

The input buffer incorporates several features:

hysteresis for extra noise immunity and switching

immunity, a diode bridge for easy use with ac input

signals, and internal clamping diodes to protect the

buffer and LED from a wide range of over-voltage and

over-currenttransients.Becausethresholdsensingis

done prior to driving the LED, variations in optical

coupling from the LED to the detector will have no

effect on the threshold levels.

Applications

• Limit switch sensing

• Low voltage detector

• 5 V-240 V AC/ DC voltage sensing

• Relay contact monitor

• Relay coil voltage monitor

• Current sensing

Functional Diagram

• Microprocessor interfacing

DC+

DC-

HCPL-0370/ 3700/ 3760

GND

TRUTH TABLE

(POSITIVE LOGIC)

INPUT OUTPUT

CAUTION: It is advised that normal static precautions be taken in handling and assembly of this component to

prevent damage and/or degradation which may be induced by ESD.

12 3 4 5 6 7...14

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