HCPL2731 参数 Datasheet PDF下载

Single-Channel: 6N138, 6N139 Dual-Channel: HCPL2730, HCPL2731 Low Input Current High Gain Split Darlington Optocouplers

April 2007

Single-Channel: 6N138, 6N139

Dual-Channel: HCPL2730, HCPL2731

Low Input Current High Gain Split

Darlington Optocouplers

Features

■

Low current – 0.5mA

■

Superior CTR-2000%

■

Superior CMR-10kV/µs

■

CTR guaranteed 0–70°C

■

U.L. recognized (File # E90700)

■

VDE recognized (File # 120915) Ordering option V,

tm

Description

The 6N138/9 and HCPL2730/HCPL2731 optocouplers

consist of an AlGaAs LED optically coupled to a high

gain split darlington photodetector.

The split darlington configuration separating the input

photodiode and the first stage gain from the output

transistor permits lower output saturation voltage and

higher speed operation than possible with conventional

darlington phototransistor optocoupler. In the dual

channel devices, HCPL2730/HCPL2731, an integrated

emitter-base resistor provides superior stability over

temperature.

The combination of a very low input current of 0.5mA

and a high current transfer ratio of 2000% makes this

family particularly useful for input interface to MOS,

CMOS, LSTTL and EIA RS232C, while output compati-

bility is ensured to CMOS as well as high fan-out TTL

requirements. An internal noise shield provides excep-

tional common mode rejection of 10 kV/µs.

e.g., 6N138V

■

Dual Channel – HCPL2730, HCPL2731

Applications

■

Digital logic ground isolation

■

Telephone ring detector

■

EIA-RS-232C line receiver

■

High common mode noise line receiver

■

µP bus isolation

■

Current loop receiver

Schematic

Package

N/C 1

8 V

CC

+ 1

V

F1

8 V

CC

8

1

+ 2

V

F

7 V

B

_ 2

7 V

01

_

3

6 V

O

_

V

3

6 V

02

F2

8

5 GND

8

1

1

N/C 4

5 GND

+ 4

6N138 / 6N139

HCPL2730 / HCPL2731

©2005 Fairchild Semiconductor Corporation

6N138, 5N139, NCPL2730, HCPL2731 Rev. 1.0.3

www.fairchildsemi.com