Lantronix IntelliBox-I/O IntelliBox-I/O - User Guide - Page 179

Electrical Characteristics

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E: Isolated I/O Specifications Electrical Characteristics Parameters Symbols Min Output characteristics of digital I/O ports (see note 5) Continuous load current IL On resistance (IL = 50 mA) RON Load voltage when ON (IL = 50 mA) VL Leakage current when OFF IL Input characteristics of digital/O ports (see note 5) High level input voltage (II = 1 mA typically) VIH 3.0 Low level input voltage VIL Characteristics of relay port (see note 5) Switching voltage Switching voltage Switching current (resistive load) VRLY VRLY IRLY Notes: Typ Max 100 15 0.75 50 0.8 250 30 8 Units Notes mA 1 Ohm VDC uA VDC 2, 3 VDC 2 VAC 5 VDC A 1. Solid state relay output; can source or sink current. See Figure C-1. 2. Opto-isolator with emitter input and a series resistor to limit current. See Figure C-2. 3. To realize a high logic input, a typical current of II = 1mA is required; that translates to a minimum of VIH = 3V. 4. For VI = VIH > 10 VDC an external series resistor is required as shown in Table C-1. 5. Connect RELAY and DIGITAL IO Ports only to Class III or Class 2 circuit. Figure C-1 Optically Isolated I/O Configured as an Output with Solid State Relay IntelliBox-I/O 2100 User Guide 179

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E: Isolated I/O Specifications
IntelliBox-I/O 2100 User Guide
179
Electrical Characteristics
Parameters
Symbols
Min
Typ
Max
Units
Notes
Output characteristics of digital I/O ports (see note 5)
Continuous load current
I
L
100
mA
1
On resistance (I
L
= 50 mA)
R
ON
15
Ohm
Load voltage when ON (I
L
= 50 mA)
V
L
0.75
VDC
Leakage current when OFF
I
L
50
uA
Input characteristics of digital/O ports
(see note 5)
High level input voltage (I
I
= 1 mA typically) V
IH
3.0
VDC
2, 3
Low level input voltage
V
IL
0.8
VDC
2
Characteristics of relay port (see note 5)
Switching voltage
V
RLY
250
VAC
5
Switching voltage
V
RLY
30
VDC
Switching current (resistive load)
I
RLY
8
A
Notes:
1.
Solid state relay output; can source or sink current. See Figure C-1.
2.
Opto-isolator with emitter input and a series resistor to limit current. See Figure C-2.
3.
To realize a high logic input, a typical current of II = 1mA is required; that translates
to a minimum of VIH = 3V.
4.
For VI = VIH > 10 VDC an external series resistor is required as shown in Table C-1.
5.
Connect RELAY and DIGITAL IO Ports only to Class III or Class 2 circuit.
Figure C-1 Optically Isolated I/O Configured as an Output with Solid State Relay