Document Number: 83523

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

www.vishay.com

Rev. 2.1, 10-Dec-08

533

K814P, K824P, K844P

Optocoupler, Phototransistor

Output, AC Input

Vishay Semiconductors

Fig. 1 - Test Circuit, Non-Saturated Operation

Fig. 2 - Test Circuit, Saturated Operation

Fig. 3 - Switching Times

TYPICAL CHARACTERISTICS

Tamb = 25 °C, unless otherwise specified

Fig. 4 - Total Power Dissipation vs. Ambient Temperature

Fig. 5 - Forward Current vs. Forward Voltage

Channel I

Channel II

13343

RG = 50 Ω

tp

tp = 50 µs

T

= 0.01

+ 5 V

IF

0

50

Ω

100

Ω

IF

IC = 2 mA; adjusted through

input amplitude

Oscilloscope

RL > 1 MΩ

CL < 20 pF

Channel I

Channel II

13344

RG = 50

tp

tp = 50 µs

T

= 0.01

+ 5 V

IF

0

50

1 k

IF = 10 mA

IC

Oscilloscope

RL > 1 M

CL < 20 pF

t p

t

t

0

0

10 %

90 %

100 %

t r

t d

t on

t s

t f

t off

I F

IC

tp

Pulse duration

td

Delay time

tr

Rise time

ton (= td + tr)

Turn-on time

ts

Storage time

t f

Fall time

t

off (= ts + tf)Turn-off time

96 11698

0

50

100

150

200

250

300

040

80

120

T

amb - Ambient Temperature (°C)

96 11700

Coupled device

Phototransistor

IR-diode

0.1

1

10

100

1000

0

VF - Forward Voltage (V)

96 11862

1.6

0.2

1.4

1.2

1.0

0.8

0.6

0.4

2.0

1.8