Sheet No.: D2-A06001EN

12

PC923L0NSZ Series

■ Design Considerations

Transistor of detector side in bipolar configuration may be damaged by static electricity due to its minute de-

sign.

When handling these devices, general countermeasure against static electricity should be taken to avoid

breakdown of devices or degradation of characteristics.

● Notes about static electricity

● Design guide

Parameter

Forward current

Supply voltage

Operating temperature

Symbol

MIN.

10

−40

15

TYP.

−

−

−

Unit

mA

˚C

V

MAX.

20

70

30

In order to stabilize power supply line, we should certainly recommend to connect a by-pass capacitor of

0.01

In case that some sudden big noise caused by voltage variation is provided between primary and secondary

terminals of photocoupler some current caused by it is floating capacitance may be generated and result in

false operation since current may go through LED or current may change.

If the photocoupler may be used under the circumstances where noise will be generated we recommend to

use the bypass capacitors at the both ends of LED.

The detector which is used in this device, has parasitic diode between each pins and GND.

There are cases that miss operation or destruction possibly may be occurred if electric potential of any pin

becomes below GND level even for instant.

Therefore it shall be recommended to design the circuit that electric potential of any pin does not become

below GND level.

This product is not designed against irradiation and incorporates non-coherent LED.

This photocoupler is dedicated to the use for IGBT or MOSFET Gate Drive.

Please do not use this for the other application.

2V or more

PC923L

2

3

8

5

6

7

A

● Recommended operating conditions