Hi
A few questions about driving a MOSFET from the Teensy LC or 3.2
I've seen that the Teensy LC has a few output pins that can have a current of 20mA, the Teensy 3.2 is limited to 10mA.
On the other hand I's seen post that suggest a 150ohm current limiting resistor for driving a MOSFET with a Teensy 4.1 (with "The recommended maximum output current is 4mA").
What is a "safe" (for the Teensy) resistor value for driving a high "total gate charge" (24nC for the IRF3708) MOSFET?
Is it different for the LC (for those few 20mA pins) and a Teensy 3.2?
In an application I would start from 12V or 24V and power the Teensy from a DC-DC buck convertor (probably the TSR 0.5-2450 for 500mA 5V).
Can I consider the ground on the DC-DC as common (just to be sure)?
A suggestion for a less powerful logic level MOSFET (switching at most the 500mA 5V on the Vin)?
A few questions about driving a MOSFET from the Teensy LC or 3.2
I've seen that the Teensy LC has a few output pins that can have a current of 20mA, the Teensy 3.2 is limited to 10mA.
On the other hand I's seen post that suggest a 150ohm current limiting resistor for driving a MOSFET with a Teensy 4.1 (with "The recommended maximum output current is 4mA").
What is a "safe" (for the Teensy) resistor value for driving a high "total gate charge" (24nC for the IRF3708) MOSFET?
Is it different for the LC (for those few 20mA pins) and a Teensy 3.2?
In an application I would start from 12V or 24V and power the Teensy from a DC-DC buck convertor (probably the TSR 0.5-2450 for 500mA 5V).
Can I consider the ground on the DC-DC as common (just to be sure)?
A suggestion for a less powerful logic level MOSFET (switching at most the 500mA 5V on the Vin)?