HCPL0700, HCPL0701, HCPL0730, HCPL0731
Low Input Current High Gain Split Darlington Optocouplers
Single Channel: HCPL0700, HCPL0701, Dual Channel: HCPL0730, HCPL0731
Features
Description
■ Low input current: 0.5mA
The HCPL0700, HCPL0701, HCPL0730 and HCPL0731
optocouplers consist of an AlGaAs LED optically coupled
to a high gain split darlington photodetector housed in a
compact 8-pin small outline package. The HCPL0730
and HCPL0731 devices have two channels per package
for optimum mounting density.
■ Superior CTR: 2000%
■ Superior CMR – 10 kV/µs
■ CTR guaranteed 0°C to 70°C
■ U.L. Recognized (file# E90700)
■ VDE 0884 recognized (file# 136616)
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.
– approval pending for HCPL0730/0731
■ BSI recognized (file# 8661, 8662)
– HCPL0700/0701 only
Applications
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 compatibility is ensured to CMOS as well as high fan-out TTL
requirements.
■ Digital logic ground isolation
■ Telephone ring detector
■ EIA-RS-232C line receiver
■ High common mode noise line receiver
■ µP bus isolation
■ Current loop receiver
Schematics
N/C 1
8 VCC
+ 1
8 VCC
V
F1
+ 2
7 VB
_ 2
7 V01
V
F
_
3
6 VO
_
3
6 V02
V
F2
N/C 4
5 GND
Truth Table
LED
+ 4
5 GND
VO
HCPL0700 / HCPL0701
©2003 Fairchild Semiconductor Corporation
HCPL0700, HCPL0701, HCPL0730, HCPL0731 Rev. 1.0.1
ON
LOW
OFF
HIGH
HCPL0730 / HCPL0731
www.fairchildsemi.com
HCPL0700, HCPL0701, HCPL0730, HCPL0731 — Low Input Current High Gain Split Darlington Optocouplers
April 2009
