I am looking for a way to power control (from a photon or Arduino) a large bank of (perhaps 10) individual 3.5" hard drives. These typically need 12V at 1.0@ max and +5V @ 1.5@ max each drive.
This is to implement a very large media library, in which each item is seldom accessed - so makes sense to power off drives except when accessed. In typical usage no more than two drives would be powered on at any time. Each drive attaches to an UBUNTU box via a SATA<->USB interface all attached to a USB hub. Ubuntu provides all the system software to do the auto drive mapping needed etc.
I have a partly working prototype using one of the excellent Denkovi USB controllable relay boards. BUT, those boards very briefly pulse all the relays every time the relay control register is updated: Often that causes an already running drive to drop offline (not all drives, but more than half of the motley assembly of second hand units I am using for testing). Also, as compared to - say an Infineon 16 channel high-side switch chip - the relay approach is space intensive (two relays per drive so need 20 relays or 3 Denkovi boards).
All these high-side MOS-FET switch chips come in teeny tiny SMT packages which are well beyond my eyesight capacity to solder or work with, so, I am looking for a board-level product that offers multi-channel logic controlled (pref SPI or serial) high-side power switched.
This one looks like my ideal product:
but it also looks like its unavailable
I looked at the obvious candidates such as Adafruit and so on, but didn’t find what I was looking for. Infineon themselves do a high-side power switch shield for Arduino - but it only offers three channels.
Has anyone here run across anything that might meet my needs?
Thanks in advance