Introduction

Link to Rev 1: https://uwarg-docs.atlassian.net/wiki/spaces/EL/pages/2765914176/Water+System+Controller

• Who

  • @Daniel Puratich architecture, component selection, pm

  • @Shawn Yang schem n layout

• What
  the board takes the input signal from Pichawk, feeding into a four-channel high-side switch to trigger the solenoid for the water system.

LDO selection: LP2985-50DBVR Texas Instruments | Integrated Circuits (ICs) | DigiKey

• Well documented

• 16v(max) to 5v fixed

Ina180 datasheet: https://www.ti.com/lit/ds/symlink/ina180.pdf

Rsense: PE1206FKF470R01Z

RES 0.01 OHM 1% 1W 1206

Rsense Calculation

Open