Monitors isolation resistance and insulation
leakage from DC to Protective Earth (PE)
Method: switched in resistive divider to
determine isolation resistance of DC+ or DC– to
PE
Reinforced isolated analog front end (AFE) with
integrated power on hot side for MCUs
sitting on the cold side
BoosterPack™ Plug-in
Module approach implemented for standalone
insulation monitoring connected to
LAUNCHXL-F280049C LaunchPad™ with
isolated CAN transceiver and fast serial
interface
Isolation resistance measurement range:
20 kΩ to 1 MΩ: 5% accuracy for symmetric
faults
> 1 MΩ: Insulation good indication
20 kΩ to 200 kΩ: 5% accuracy for symmetric and
asymmetric faults