7.Electrical Interface
© 2023 China Daheng Group, Inc. Beijing Image Vision Technology Branch 50
Range of external voltage (EXVCC) is 5~24V
Maximum output current of Line1 is 25mA
Transistor voltage drop and output current of opto-isolated output circuit in typical application
environment (temperature is 25°C) is as shown in Table 7-5
External voltage
EXVCC
External resistance
Rexternal
Transistor voltage drop
(turn on, unit V)
Output current (mA)
5V
1kΩ
0.90
4.16
12V
1kΩ
0.97
11.11
24V
1kΩ
1.04
23.08
Table 7-5 Transistor voltage drop and output current of opto-isolated output circuit in typical application environment
Rising time delay = tr+ts: <50μs (0°C~45°C) (parameter description is shown in Figure 7-6)
Falling time delay = ts+tf: <50μs (0°C~45°C) (parameter description is shown in Figure 7-6)
Delay time in typical application conditions (environment temperature is 25°C) are shown in Table 7-6
Parameter
Test Condition
Value (μs)
Storage time (ts)
External power is 5V,
pull-up resistor is 1kΩ
6.16
~
13.26
Delay time (td)
1.90
~
3.16
Rising time (tr)
2.77
~
10.60
Falling time (tf)
7.60
~
11.12
Rising time delay = tf+td
4.70
~
13.76
Falling time delay = tr+ts
14.41
~
24.38
Table 7-6 Delay time of opto-isolated output circuit in typical application environment
t
d
t
s
t
f
tr
90%
10%
OUTPUT 1
LINE1+
Figure 7-6 Parameter of opto-isolated output circuit
