J1772 Interface
When board is powered, Regulator U3 should output 5V.
Proximity Pilot (PP)
Expected readings:
EVSE_PROXIMITY Voltage (V) | U4 Inverting Input Voltage (V) | PA7 Voltage (V) |
---|---|---|
Not Connected | 4.46 | 2.735 |
1.53 | 1.53 | 0.938 |
2.77 | 2.77 | 1.938 |
PA7 should always be DC. Time constant for RC filter (R8, C10) = 10us = 100kHz
PA7 should never exceed 3.3V.