28

Test Circuit and Condition

1 k

Ω

51

Ω

330

µF

1 k

Ω

V O

Other Temperature Characteristics

Almost all characteristics of optocouplers are apt to be affected by ambient temperature (see 3.1.2). Figures 15 to 21 show how

temperature.

Figure 14. Voltage-Gain vs. Frequency Characteristics

(Standard Value) (PS2501, PS2505).

°C)

Standard

characteristics

CTR = 156%

CTR = 186%

CTR = 304%

5

0

-5

-10

-15

-20

-25

100

500 1 k

5 k 10 k

50 k 100 k

500 k

1.2

1.1

1.0

0.9

0.8

0.7

0.6

0.5

-30

0

25

50

75

100

mA

mA

mA