Fairchild MCT6, MCT61, MCT62 service manual

MCT6, MCT61, MCT62 — Dual Phototransistor Optocouplers

February 2010

MCT6, MCT61, MCT62 Dual Phototransistor Optocouplers

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

■

VDE approved for IEC60747-5-2

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

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.

Schematic Package Outlines

ANODE

CATHODE

ANODE

1

2

3

4 5

Equivalent Circuit

EMITTER

8

COLLECTOR

7

COLLECTOR

6

EMITTER

8

1

8

1

8

1

MCT6, MCT61, MCT62 — Dual Phototransistor Optocouplers

Absolute Maximum Ratings

Stresses exceeding the absolute maximum ratings may damage the device. The device may not function or be operable above the recommended operating conditions and stressing the parts to these levels is not recommended. In addition, extended exposure to stresses above the recommended operating conditions may affect device reliability. The absolute maximum ratings are stress ratings only.

Symbol Rating Value Unit

TOTAL DEVICE

T

Storage Temperature -55 to +150 °C

STG

Operating Temperature -55 to +100 °C

T

OPR

T

SOL

P

D

EMITTER (Each channel)

I

Forward Current – Continuous 60 mA

F

I

(pk) Forward Current – Peak (PW = 1µs, 300pps) 3 A

F

Reverse Voltage 3.0 V

V

R

P

D

DETECTOR (Each channel)

I

Collector Current – Continuous 30 mA

C

P

D

Lead Solder Temperature (Refer to Reﬂow Temperature Proﬁle)

Total Device Power Dissipation @ T

= 25°C 400 mW

A

260 for 10 sec °C

Derate above 25°C 5.33 mW/°C

LED Power Dissipation @ T

= 25°C 100 mW

A

Derate above 25°C (Total Input) 1.3 mW/°C

Detector Power Dissipation @ T

= 25°C 150 mW

A

Derate above 25°C 2.0 mW/°C

≤

Ω

MCT6, MCT61, MCT62 — Dual Phototransistor Optocouplers

Electrical Characteristics

(T

= 25°C unless otherwise speciﬁed)

A

Individual Component Characteristics

Symbol Parameter Test Conditions Min. Typ.* Max. Units

EMITTER

V

Input Forward Voltage I

F

V

Reverse Voltage I

R

Reverse Current V

I

R

C

Junction Capacitance V

J

= 20mA 1.2 1.5 V

F

= 10µA 3.0 25 V

R

= 5V 0.001 10 µA

R

= 0V, f = 1MHz 50 pF

F

DETECTOR

BV

Collector-Emitter Breakdown Voltage I

CEO

BV

Emitter-Collector Breakdown Voltage I

ECO

I

Collector-Emitter Dark Current V

CEO

Capacitance V

C

CE

= 1.0mA, I

C

= 100µA, I

E

= 10V, I

CE

= 0V, f = 1MHz 8 pF

CE

= 0 30 85 V

F

= 0 6 13 V

F

= 0 5 100 nA

F

Transfer Characteristics

Symbol Characteristic Test Conditions Min. Typ.* Max. Units

SWITCHING CHARACTERISTICS (AC)

t

Non-Saturated Turn-on Time R

on

t

Non-Saturated Turn-off Time 2.4 µs

off

CURRENT TRANSFER RATIO, COLLECTOR-EMITTER (DC)

CTR MCT6 I

MCT61 I

MCT62 100

V

CE(sat)

Saturation Voltage I

= 100 Ω , I

L

= 10mA, V

F

= 5mA, V

F

= 16mA, I

F

= 2mA, V

C

= 10V 20 %

CE

= 5V 50

CE

= 2mA 0.15 0.40 V

C

= 10V 2.4 µs

CC

Isolation Characteristics

Symbol Characteristic Test Conditions Min. Typ.* Max. Units

V

Input-Output Isolation Voltage I

ISO

Isolation Resistance V

R

ISO

C

Isolation Capacitance f = 1MHz 0.5 pF

ISO

*All typicals at T

= 25°C

A

10µA, t = 1min. 5000 Vac(rms)

I-O

= 500VDC 10

I-O

11