PC929 Sharp Electronics, PC929 Datasheet - Page 16

• Manufacturer Part Number: PC929
• Manufacturer: Sharp Electronics

Specifications of PC929

• Number Of Elements: 1
• Input Type: DC
• Output Type: Push-Pull
• Forward Voltage: 1.75V
• Forward Current: 20mA
• Output Current: 100mA
• Isolation Voltage: 4000Vrms
• Package Type: SMD
• Operating Temp Range: -25C to 80C
• Fall Time: 500ns
• Rise Time: 500ns
• Power Dissipation: 550mW
• Propagation Delay Time: 500ns
• Pin Count: 14
• Mounting: Surface Mount
• Reverse Breakdown Voltage: 6V
• Operating Temperature Classification: Commercial
• Lead Free Status / Rohs Status: Not Compliant

■ Design Considerations
● Notes about static electricity
● Design guide
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.
In order to stabilize power supply line, we should certainly recommend to connect a by-pass capacitor of
0.01µF or more between V
We recommed to use approximately 1 000pF of capacitor between C-pin and GND in order to prevent miss
opration by noise.
In the case that capacitor is used approximately 1kΩ of resistance shall be recommended to use between
V
please use this device after confirmation.
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.
CC
and C-pin However, the rise time of C-pin shall be changed by time constant of added CR, so that
CC
and GND near the device.
16
Sheet No.: D2-A06302EN
PC929 Series