Electrical Interfaces
AGD155 Product Manual Rev.2.2
Page 41
Isolated Digital Outputs 1 to 2, and 3 to 6
Figure 27. Digital Output 1 to 2, and 3 to 6 (2 isolated groups)
The interface circuit is identical for all outputs.
Each output can be programmed (by software parameter) to act as a current sourcing output (up
to 300mA), or as a current sinking output (up to 500mA).
Digital_Output_Common_Power is organized into two groups – digital output 1 to 2, and digital
output 3 to 6.
The outputs are designed for resistive loads. For inductive loads, an external flyback diode is
required.
Discrete outputs specifications:
Digital_Output_Common_Power voltage range is between 5V and 28V.
Maximal load current, per each output:
Sink mode, any Digital_Output_Common_Power voltage: 500 mA
Source mode, at 24V Digital_Output_Common_Power:
300 mA
Source mode, at 5V Digital_Output_Common_Power:
60 mA (see Note below)
Note – 5V Digital_Output_Common_Power source mode limitation.
When using 5V Digital_Output_Common_Power in source mode, higher current (but
less than the absolute maximum value of 250 mA) can be driven. However, the output
high voltage will drop significantly. To maintain output high voltage at > 4.5V, limit the
current to 60 mA.
Differential Inputs 1 to 3
Figure 28. Differential Inputs 1 to 3
