Fairchild Semiconductor MCT62, MCT61, MCT6 Datasheet

8

1

8

1

8

1

EMITTER

COLLECTOR

ANODE

CATHODE

1

2

3

4 5

6

7

8

EMITTER

COLLECTOR

ANODE

CATHODE

Equivalent Circuit

SCHEMATIC

DUAL PHOTOTRANSISTOR

OPTOCOUPLERS

MCT6 MCT61 MCT62

DESCRIPTION

The MCT6X Optocouplers have two channels for density applications. For four
channel applications, two-packages fit into a standard 16-pin DIP socket. Each
channel is an NPN silicon planar phototransistor optically coupled to a gallium
arsenide infrared emitting diode.

FEATURES

•Two isolated channels per package

•Two packages fit into a 16 lead DIP socket

• Choice of three current transfer ratios

• Underwriters Laboratory (U.L.) recognized File E90700

APPLICATIONS

•AC Line/Digital Logic - isolate high voltage transients

• Digital Logic/Digital Logic - Eliminate spurious grounds

• Digital Logic/AC Triac Control - isolate high voltage transients

•Twisted pair line receiver - Eliminate ground loop feedthrough

•Telephone/Telegraph line receiver - isolate high voltage transients

• High Frequency Power Supply Feedback Control - Maintain floating grounds and
transients

• Relay contact monitor - isolate floating grounds and transients

•Power supply monitor - Isolate transients

ABSOLUTE MAXIMUM RATINGS

Rating Symbol Value Unit

EMITTER (Each channel)

Forward Current - Continuous I

Forward Current - Peak (PW = 1µs, 300pps) I

Reverse Voltage V

LED Power Dissipation @ T

= 25°C

A

Derate above 25°C (Total Input)

DETECTOR (Each channel)

Collector Current - Continuous I

Detector Power Dissipation @ T

= 25°C

A

Derate above 25°C

TOTAL DEVICE

Storage Temperature T

Operating Temperature T

Lead Solder Temperature (wave solder) T

Total Device Power Dissipation @ T
Derate above 25°C

= 25°C

A

F

(pk) 3 A

F

R

P

D

C

P

D

STG

OPR

SOL

P

D

60 mA

3.0 V

100

1.3

mW

mW/°C

30 mA

150

2.0

mW

mW/°C

-55 to +150 °C

-55 to +100 °C

250 for 10 sec °C

400

5.33

mW

mW/°C

© 2003 Fairchild Semiconductor Corporation

Page 1 of 7

7/31/03

≤

Ω

DUAL PHOTOTRANSISTOR

OPTOCOUPLERS

MCT6 MCT61 MCT62

ELECTRICAL CHARACTERISTICS

(T

= 25°C Unless otherwise specified.)

A

INDIVIDUAL COMPONENT CHARACTERISTICS

Parameter Test Conditions Symbol Min Typ** Max Unit

EMITTER

Input Forward Voltage (I

Reverse Voltage (I

Reverse Current (V

Junction Capacitance (V

F

= 20 mA) V

F

= 10 µA) V

R

= 5 V) I

R

= 0 V, f = 1 MHz) C

F

R

R

J

3.0 25 V

1.2 1.5 V

0.001 10 µA

50 pF

DETECTOR

Collector-Emitter Breakdown Voltage (I

Emitter-Collector Breakdown Voltage (I

Collector-Emitter Dark Current (V

Capacitance (V

= 1.0 mA, I

C

= 100 µA, I

E

= 10 V, I

CE

= 0 V, f = 1 MHz) C

CE

= 0) BV

F

= 0) BV

F

= 0) I

F

CEO

ECO

CEO

CE

30 85 V

613 V

5 100 nA

8pF

TRANSFER CHARACTERISTICS

AC Characteristic Test Conditions Symbol Min Typ** Max Units

SWITCHING TIMES

Non-Saturated Turn-on Time (R

Non-Saturated Turn-off Time (R

= 100 Ω , I

L

= 100 Ω , I

L

= 2 mA, V

C

= 2 mA, V

C

= 10 V) t

CC

= 10 V) t

CC

on

off

2.4 µs

2.4 µs

TRANSFER CHARACTERISTICS

DC Characteristic Test Conditions Symbol Min Typ** Max Units

Current Transfer Ratio, Collector-Emitter

MCT6 (I

MCT62 100

Saturation Voltage (I

= 10 mA, V

F

(I

= 5 mA, V

F

= 16 mA, I

F

= 10 V) 20

CE

= 5 V)

CE

= 2 mA) V

C

CTR

CE(sat)

50

0.15 0.40 V

ISOLATION CHARACTERISTICS

Characteristic Test Conditions Symbol Min Typ** Max Units

Input-Output Isolation Voltage (I

Isolation Resistance (V

Isolation Capacitance (f = 1 MHz) C

** All typicals at TA = 25°C

© 2003 Fairchild Semiconductor Corporation

1 µA, t = 1 min.) V

I-O

= 500 VDC) R

I-O

Page 2 of 7

ISO

ISO

ISO

5300 Vac(rms)

11

10

0.5 pf

7/31/03

% MCT61

DUAL PHOTOTRANSISTOR

OPTOCOUPLERS

MCT6 MCT61 MCT62

Normalized CTR vs. Forward Current

1.4

VCE = 5.0V
T

= 25˚C

A

1.2

1.0

0.8

0.6

NORMALIZED CTR

0.4

0.2

0.0
051015 20

IF - FORWARD CURRENT (mA)

1

10

VCE = 10 V

0

NT (µA)

10

Normalized to

= 10 mA

I

F

1.4

1.2

1.0

1.6

0.8

NORMALIZED CTR

0.6

0.4

-75 -50 -25 0 25 50 75 100 125

Dark Current vs. Ambient Temperature

Normalized CTR vs. Ambient Temperature

IF = 5 mA

IF = 10 mA

Normalized to

= 10 mA

I

F

= 25˚C

T

A

IF = 20 mA

TA - AMBIENT TEMPERATURE (˚C)

© 2003 Fairchild Semiconductor Corporation

-1

10

ARK CURRE
D

-2

10

-3

10

-4

10

-5

10

- COLLECTOR-EMITTER

CEO

I

-6

10

0255075100 125

- AMBIENT TEMPERATURE (˚C)

T

A

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7/31/03