I want to use a Raspberry Pi or such to drive a latching solenoid valve (e.g. Orbit 58874N). The original controller applies something like 4.5 A 10 ms pulse to it (it actually is a saw tooth with a 4.5 A peak and 15 ms linear drop). The DC resistance is 4.2 Ohm.
A DRV8833 or similar would be nice, but I am afraid the peak current will not suffice. The original controller uses 2 AA batteries and a large capacitor (2200 uF). Can you recommend a solution?
I can imagine that there is general demand by sprinkler control enthusiasts.