Description
The CSM700.consists of an IR light emitting diode, optically coupled to a corresponding
integrated high gain photon detector. The high gain output stage features an open collector output
providing both lower output saturation voltage and higher speed of operation than is possible with
conventional photo-darlington type coupler.
The minimum CTR of 200% at an input current of 0.5mA makes it ideal for use in a low input current
applications such as MOS, CMOS and low power logic interfacing or data transmission systems.
Absolute Maximum Ratings
Storage temperature ..... -65oC to +150oC
Operating temperature ..... -55oC to +125oC
Input Diode Output Detector
Forward DC current ..... 8mA Supply voltage Vcc -0.5 to 20vV
Reverse DC voltage ..... 5V Average current Io 40mA
..... Peak current Io 16mA
Voltage Vo -0.5 to 20V
..... Emitter-base reverse voltage BVEBO 3V
Base current Ib 5mA
Collector power dissipation 50mW
Electrical Characteristics (TA = -55 to 125oC U.O.S) *All typical values at TA = 25OC
parameter symbol Test Conditions min *typ max Units
High level output current IOH VF=0.7V VO=VCC=18V 0.001 250
µA
Low level output voltage VOL V
CC=4.5 IF=0.5mA IOL=1.0mA 0.1 0.4 V
V
CC=4.5 IF=1.6mA IOL=3.2mA 0.15 0.4 V
V
CC=4.5 IF=5mA IOL=10mA 0.12 0.4 V
High level supply current ICCH I
F=0 VCC=18V 0.01 7.5
µA
Low level supply current ICCL I
F=1.6mA VCC=18V 0.8 2.0 mA
I/O insulation leakage current II/O V
I/O=1500Vdc TA=25OC t=5s
Relative Humidity =45% 1.0
µA
Input forward voltage VF I
F=1.6mA TA=25OC 1.0 1.6 V
Input reverse breakdown voltage VBR IR=10µA 5.0 V
Propagation delay to logic high o/p tPLH RL=4.7KΩ IF=0.5mA VCC=5V 20 185
µS
RL=2.2KΩ IF=1.6mA VCC=5V 15 115
µS
RL=680Ω IF=5mA VCC=5V 8 60
µS
Propagation delay to logic low o/p tPHL RL=4.7KΩ IF=0.5mA VCC=5V 11 185
µS
RL=2.2KΩ IF=1.6mA VCC=5V 5 30
µS
RL=680Ω IF=5mA VCC=5V 3 12
µS
Current transfer ratio CTR IF=0.5mA VO=0.4V VCC=4.5V 200 1300 %
I
F=1.6mA VO=0.4V VCC=4.5V 200 1000 %
I
F=5mA VO=0.4V VCC=4.5V 200 600 %
Common mode transient immunity at
logic high output CMH V
CC=5V TA=25OC IF=0mA
VCM=50Vp-p RL=2.2KΩ 500 1000 V/µS
Common mode transient immunity at
logic low output CML V
CC=5V TA=25OC IF=1.6mA
VCM=50Vp-p RL=2.2KΩ -500 -1000 V/µS
Isocom Ltd reserves the right to change the details on this specification without notice. Please consult Isocom Ltd prior to use.
Isocom Ltd cannot accept liability for any errors or omissions.
For sales enquiries, or further information, please contact our sales office at:
Isocom Ltd, Hutton Close, Crowther Industrial Estate, District 3, Washington, NE38 0AH
Tel: +44 0191 4166 546 Fax: +44 0191 4155 055 Email Isocom@isocomoptocouplers.com
Or go to the Isocom Website @: Http://www.isocom.uk.com