I'm trying to figure out what chips I need to run my irf4905. the mosfets will need to be running 5 amps at 24 volts using pwm to Varey the watts. if anyone has done anything with this mosfet an knows what drivers it need anything would help
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\$\begingroup\$ Why do you think you need a driver Chip? Tell us more about the pwm. \$\endgroup\$– KartmanMar 18, 2021 at 12:57
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\$\begingroup\$ Hi Sam, you're getting close votes because product recommendations are not allowed here. If you instead describe what you are doing in more detail, alternatives may be given. If you just want a PMOS driver, then search for these at your favorite distributor. \$\endgroup\$– rdtscMar 18, 2021 at 13:34
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\$\begingroup\$ Actually, the close votes are for more details / clarity -- a schematic and more details would definitely help. This is nearly a product recommendation, too, but is not quite asking for a specific product (rather what specifications to look for) and therefore (arguably) on-topic on that front. \$\endgroup\$– Null ♦Mar 18, 2021 at 15:23
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FETs need a gate voltage >2 to >2.5 Vgs(th)max to guarantee low RdsOn. This is fundamental to all datasheets on FETs. The logic level types are Vgs(th)= Vt (aka) Vth ~ 1V for 3.3V operation.
Your choice of RdsOn depends on I^2*Ron losses, thermal resistance and prudent max junction temp rise << 40’C.
Inductive loads required an equivalent higher current rated diode in reverse across drain to rail-switched whether you choose Lo or hi side switch.
