IL4108-X007(2008) Просмотр технического описания (PDF) - Vishay Semiconductors

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Компоненты Описание

производитель

IL4108-X007
(Rev.:2008)

Optocoupler, Phototriac Output, Zero Crossing, High dV/dt, Low Input Current

Vishay Semiconductors 

IL410/IL4108

Vishay Semiconductors Optocoupler, Phototriac Output, Zero

Crossing,

High dV/dt, Low Input Current

TECHNICAL INFORMATION COMMUTATING

BEHAVIOR

103

The use of a TRIAC at the output creates difficulties in

Tj = 25 °C

100 °C

commutation due to both the built-in coupled thyristor

systems. The TRIAC can remain conducting by parasitic

102

triggering after turning off the control current. However, if the

5

IL410/4108 is equipped with two separate thyristor chips

featuring high dV/dt strength, no RC circuit is needed in case

of commutation.

101

5

IDINH = f (IF/IFT 25 °C),

VD = 600 V, Parameter: Tj

CURRENT COMMUTATION:

The values 100 A/ms with following peak reverse recovery

100

0 2 4 6 8 10 12 14 16 18 20

current > 80 mA should not be exceeded.

iil410_10

IF/IFT25 °C

AVOIDING HIGH-FREQUENCY TURN-OFF

CURRENT OSCILLATIONS:

Fig. 10 - Typical Inhibit Current

This effect can occur when switching a circuit. Current

oscillations which appear essentially with inductive loads of

a higher winding capacity result in current commutation and

0.6

can generate a relatively high peak reverse recovery current.

40 to 60 Hz

0.5

Line Operation,

Ptot = f(ITRMS)

0.4

The following alternating protective measures are

recommended for the individual operating states:

0.3

1

6

0.2

0.1

0

0

iil410_11

100

200

300

ITRMS (mA)

2

5

0.1 µF

220 V~

3

4

Fig. 11 - Power Dissipation 40 to 60 Hz Line Operation

12

V

10

8

6

4

100

iil410_12

Tj = 25 °C

100 °C

VDINH min = f (IF/IFT25°C),

parameter: Tj

Device zero voltage

switch can be triggered

only in hatched are

below Tj curves.

5 101

IF/IFT25 °C

5 102

iil410_13

Fig. 13 - 1 - Apply a Capacitor to the Supply Pins at the Load-Side

33 Ω

1

6

2

5

22 nF

220 V~

3

4

Fig. 12 - Typical Static Inhibit Voltage Limit

iil410_14

www.vishay.com

6

Fig. 14 - 2 - Connect a Series Resistor to the Output and Bridge Both

by a Capacitor

For technical questions, contact: optocoupler.answers@vishay.com

Document Number: 83627

Rev. 1.6, 09-Jan-08

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