VN808-E
Current, voltage conventions and internal diagram
Figure 5. Application example
Filter for bus inductance effect.,
Make supply voltage stable and
Avoid undervoltage shut-down
. . . Vcc24V- 28,2V IEC61131
EMC filter
..
22µF
Protection for IEC 61000-4-5
Surge test suggested 1,5KE39xx
.. . .
100nF
Optional protection for
VCC disconnection.
Vcc/2 compatible inputs
Vin 1
Vin 2
Vin 3
Vin 8
Imax 80µA
VN808-E
Status
Status output current
From 2 to 4 mA
RGND
.
Load 2
Load 3
Load 8
Load 1
10nF
Protection against
IEC 61000-4-6
Current injection test
10Ω protection against disconnection
On inductive loads
PROTECTIONS INCLUDED IN THE DEVICE:
IEC 61000-4-2 ESD test better than 2kV Human Body Model – IEC 61000-4-4 Burst test
Table 9.
Truth table
Conditions
Normal operation
Current limitation
Overtemperature
(see waveforms 3, 4 Figure 8) -> TJ > TTSD
Undervoltage
INPUTn OUTPUTn STATUS
L
L
L
H
H
L
L
L
L
H
X
L
L
L
L
H
L
H
L
L
X
H
L
X
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