This kind of pin is an auxiliary supply for external devices (Uin / max 4 A)
The output is enabled by default during power-up
This output has integrated protection features (overload, overcurrent)
This kind of pin is a current sourcing output
In other words, the pin connects the load to the positive supply voltage.
The application program can also simultaneously monitor the actual state of the pin.
This feature makes it possible to detect short circuits to the ground and short circuits to the power supply.
Open loads can not be detected because the internal load resistor is connected to the ground.
Electrical characteristics
Symbol |
Parameter |
Conditions |
Min |
Max |
Units |
RO |
Output Resistance |
Output On |
|
0,1 |
Ω |
IO |
Output Current |
Output On |
0 |
4 |
A |
Io-lim |
Internal current limitation |
Output On (Note 1, 2) |
typ. 12 |
A |
|
Digital status |
|||||
RI |
Input Resistance |
Output Off; Referenced to GND |
typ. 10 |
kΩ |
|
VIH |
Input High Voltage |
Output Off (Note 3) |
3,5 |
Uin |
V |
VIL |
Input Low Voltage |
Output Off |
-0,5 |
1,5 |
V |
CI |
Input pin capacitance |
|
typ. 1 |
nF |
|
Note 1: Current limit for short circuit protection to protect cabling and to limit internal power dissipation.
Note 2: When the limit is exceeded, the output voltage circuit starts to limit the current by switching off the output voltage. The switching does not effect the application software.
Note 3: Exceeding the max value might cause permanent damage.