(1)
Voltage detection circuit
■
Characteristics of input circuit
● The multi I/O unit has a circuit for detecting an input voltage and switching an input
impedance. See the following table as a guide for input impedances when using each
voltage.
Voltage
5 V
12 V
24 V
● Input impedances are switched in three stages in the 5-24 V mode, and in two stages in the
12-24 V mode. Input currents vary like the following graphs. The respective minimum ON
voltages and maximum OFF voltages in the 5-24 V mode and 12-24 V mode are different.
3.1.3 Output Specifications
Item
Insulation system
Output device
(Note 1)
Output method
Rated load voltage
Allowable load voltage range
Max. load current
Off state leakage current
ON Max. voltage drop
OFF→ON
Response time
ON→OFF
External power
Voltage
supply
WUME-FP7MXY-06
Input impedance
1/ {(1/4.3 kΩ)+(1/5.6 kΩ)+(1/510 Ω) }≒ 420 Ω
1/ {(1/4.3 kΩ)+(1/5.6 kΩ) }≒ 2.43 kΩ
4.3 kΩ
Specifications
Digital isolator
MOSFET
Nch open drain / Pch open drain / Push-pull
5 V DC to 24 V DC
4.75 V DC to 26.4 V DC
0.1A
3.0 µA or less
1.0 V DC or less
0.5 µs or less
0.5 µs or less
4.75 V DC to 26.4 V DC
3.1 Input/Output Specifications
(2)
Internal circuit
(Note 2)
(Note 2)
3-5