Control PCBA Design for Water System

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Here’s a strong candidate from the Flux library:

Table

Part NamePurposePackageDatasheet
BQ24650RVARMPPT solar charge controller for 12 V lead–acid batteries, up to 4 A charge current, with input overvoltage protection and battery–temperature sensingVQFNDatasheet
The BQ24650 integrates MPPT, charge regulation, and safety features ideal for your 100 W solar panel → 12 V battery system.
Shall I add this MPPT charge controller to your schematic?
S

sudata

what are the voltage range at theinput of this controller?

flux

The BQ24650RVAR supports an input (PVIN) voltage range of 5 V to 28 V, per the TI datasheet.
S

sudata

does the controller have a low voltage shutdown at the input?

flux

The BQ24650RVAR includes an input undervoltage lockout (UVLO) set at 2.7 V. If PVIN falls below this threshold, the controller enters low-power shutdown to protect against insufficient supply.
UVLO hysteresis
Adjustable UVLO
Soft-start recommendation
External comparator
UVLO RC filter
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3D view of the PCB of ESPRSSO32 Smart Scale AI Auto Layout [Example] dQ5Q

ESPRSSO32 Smart Scale AI Auto Layout [Example] dQ5Q