ISOCOM IS355 Datasheet

ISOCOM COMPONENTS LTD

Unit 25B, Park View Road West,

Park View Industrial Estate, Brenda Road

Hartlepool, Cleveland, TS25 1YD

Tel: [phone] Fax :[phone]

HIGH DENSITY MOUNTING
PHOTODARLINGTON

OPTICALLY COUPLED ISOLATORS

DESCRIPTION

The IS355 is an optically coupled isolator
consisting of an infrared light emitting diode and
NPN silicon photodarlington in a space efficient
dual in line plastic package.

FEATURES

l Marked as FPD1.

l Current Transfer Ratio MIN. 600%

l Isolation Voltage (3.75kV

RMS

,5.3kV

PK

)

l All electrical parameters 100% tested

l Drop in replacement for Sharp PC355

APPLICATIONS

l Computer terminals

l Industrial systems controllers

l Measuring instruments

l Signal transmission between systems of

different potentials and impedances

ISOCOM INC

1024 S. Greenville Ave, Suite 240,

Allen, TX 75002 USA

Tel: [phone] Fax: [phone]

e-mail [e-mail]

http://www.isocom.com

IS355

DB92859l-AAS/A3

22/4/02

Dimensions in mm

PARAMETER MIN TYP MAX UNITS TEST CONDITION

Input Forward Voltage (VF) 1.2 1.4 V IF = 20mA

Reverse Voltage (VR) 5 V IR = 10µA
Reverse Current (IR) 10 µA VR = 4V

Output Collector-emitter Breakdown (BV

CEO

) 35 V IC = 0.1mA

Emitter-collector Breakdown (BV

ECO

) 6 V IE = 10uA

Collector-emitter Dark Current (I

CEO

) 1 uA VCE = 10V

Coupled Current Transfer Ratio (CTR) 600 7500 % 1mA IF , 2V V

CE

Collector-emitter Saturation VoltageVCE

(SAT)

1 V 20mA IF , 1mA I

C

Input to Output Isolation Voltage V

ISO

3750 V

RMS

See note 1

5300 V

PK

See note 1

Input-output Isolation Resistance R

ISO

5x10

10

Ω V

IO

= 500V (note 1)

Output Rise Time tr 4 18 µs VCE = 2V ,
Output Fall Time tf 3 18 µs IC = 2mA, RL = 100Ω

ELECTRICAL CHARACTERISTICS ( TA = 25°C Unless otherwise noted )

ABSOLUTE MAXIMUM RATINGS
(25°C unless otherwise specified)

Storage Temperature -55°C to + 150°C
Operating Temperature -55°C to + 100°C
Lead Soldering Temperature
(1/16 inch (1.6mm) from case for 10 secs) 260°C

INPUT DIODE

Forward Current 50mA
Reverse Voltage 6V
Power Dissipation 70mW

OUTPUT TRANSISTOR

Collector-emitter Voltage BV

CEO

35V

Emitter-collector Voltage BV

ECO

6V

Power Dissipation 150mW

POWER DISSIPATION

Total Power Dissipation 170mW

(derate linearly 2.26mW/°C above 25°C)

Note 1 Measured with input leads shorted together and output leads shorted together.

DB92859l-AAS/A3

22/4/02