PCA9685 16-Channel 8W 12V FET Driver Proportional Valve Controller with I2C Interface
Planning on using these boards to timely drive many 12vdc solenoids. Would it be recommended or needed to add diodes across the powered outputs in order to protect the driving circuit or is there enough built in to handle the inductive surge after disabling the outputs?
Also, would adding the diode really reduce the closing time of the solenoids as it allows the inductive surge to drain faster? I find mixed information online about the effects of doing so.