Dears,
There is SPV1050 in my circuit. Works without MPPT, boost mode. The problem concerns BATT_CHG state. Documentation says BATT_CHG output reflects DC/DC converter state, i. e. it is active (low) when DC/DC converter works. Simply saying:
1. When input voltage is above threshold (Vmpp > Vmpp_ref), battery is being charged and BATT_CHG is low. That's correct.
2. When battery becomes full, EOC threshold is reached and DC/DC converter stops operating. BATT_CHG becomes inactive (high). That's also correct.
3. When battery is being charged and suddenly we stop delivering input voltage (disconnect photovoltaic panel), battery current meter shows no charge, voltmeter connected to input shows there is no input voltage.Unfortunatelly BATT_CHG is still active (low), so it doesn't reflect DC/DC converter state (which should be low because Vmpp < Vmpp_ref).
Do you know why there is low state at BATT_CHG in scenario 3?
