1-45

Figure 6. Switching Test Circuit.

Figure 4. Current Transfer Ratio vs. Temperature.

Figure 5. Logic High Output Current

vs. Temperature.

TA – TEMPERATURE – °C

10

-2

-40 -20

0

20 40

60 80 100 120

-60

IF = 0 mA

VO = VCC = 5.0 V

VO

PULSE

GEN.

Z

= 50

Ω

t = 5 ns

O

r

I

MONITOR

F

IF

0.1µF

L

R

CL

RM

0

tPHL

t

PLH

O

V

IF

OL

V

THHL

V

THLH

V

VCC

VCC

1

2

3

4

8

7

6

5

Figure 7. Test Circuit for Transient Immunity and Typical Waveforms.

TA – TEMPERATURE – °C

1.0

0.9

0.85

1.05

0.95

-40 -20

0

20 40

60 80 100 120

-60

IF = 16 mA

VO = 0.4 V

VCC = 5.0 V

TA = 25°C

NORMALIZED

HCNW4504

TA – TEMPERATURE – °C

1.0

0.8

0.6

1.1

0.7

0.9

-40 -20

0

20 40

60 80 100 120

-60

IF = 16 mA

VO = 0.4 V

VCC = 5.0 V

TA = 25°C

NORMALIZED

HCPL-4504/0454

VO

IF

0.1µF

L

R

A

B

PULSE GEN.

VCM

+

VFF

L

C

O

V

OL

V

O

V

0 V

10%

90%

90%

10%

SWITCH AT A: I = 0 mA

F

SWITCH AT B: I = 12 mA, 16 mA

F

CM

V

tr

tf

CC

V

VCC

–

1

2

3

4

8

7

6

5