Vansco VMM3120, User Manual, Page: 46 / 92

36 VMM3120
Outputs
4.2.3. Low-Side Outputs with Current Sense Installation
Connections
When connecting low-side outputs, note that

Low-side outputs are connected to a common internal ground point that is
connected to the battery ground (GND).

Low-side outputs provide switched ground to any load type in a vehicle.

Low-side outputs can sink up to 2.5 A.

When connecting a load to a low-side output, ensure the load will not drive
currents greater than the maximum specified peak current, or maximum
specified continuous current.
The following shows a typical low-side output connection:
Internal to product
Low-Side
Output
Application
Load
Battery
Figure 17: Typical low-side output connection
4.2.3.1. Low-Side Output De-Rating Requirements
Each low-side output is rated to continuously drive 2.5 A of current; however, in
some applications, the rating for low-side outputs must be reduced, or de-rated to
less than 2.5 A.