When connecting high-side outputs, ensure you follow these best practices:
High-side outputs should not be connected to loads that will draw currents
greater than the maximum peak current, or maximum continuous current.
The grounds for the loads should be connected physically close to the
VMM1210 power grounds.
The following shows a typical high-side output connection:
Figure 13: High-side output installation connections
Note: 3 A outputs must be externally protected with back EMF/Transient
suppression diodes if connected to an inductive load of any kind.
Low-Side Output Connections
You must be aware of the following when connecting low-side outputs:
Low-side outputs are connected to internal ground, which is connected to
battery negative terminal. Maximum load on each output is 3A.
Low-side outputs can provide switched ground path to a variety of load types
in a vehicle.
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