ParkingLotLust
Member
Hey all,
I have built the following circuit on a PCB, and I'm having some trouble getting it to work.
I've double-checked connections and values, and I've only assembled the relevant section on the PCB.
The latch circuit is driven from a MAX1555, and eventually feeds 2 LDO regulators (I currently have a red LED hooked up to the output for testing). The output of the MAX1555 is ~4.2v, and I am using this dual MOSFET (Vgs is ~1v, should be fine).
When I power the circuit, the switch is "on", which is fine. When I press the button to turn it "off" (even holding the button), I can see a quick FLASH where the LED goes off (power turns off) but within 1/10 of a sec, it turns back on by itself.
I've tested the circuit in a sim and it appears to work as expected.
Anyone have experience with this/a similar circuit?
Cheers!
I have built the following circuit on a PCB, and I'm having some trouble getting it to work.
I've double-checked connections and values, and I've only assembled the relevant section on the PCB.
The latch circuit is driven from a MAX1555, and eventually feeds 2 LDO regulators (I currently have a red LED hooked up to the output for testing). The output of the MAX1555 is ~4.2v, and I am using this dual MOSFET (Vgs is ~1v, should be fine).
When I power the circuit, the switch is "on", which is fine. When I press the button to turn it "off" (even holding the button), I can see a quick FLASH where the LED goes off (power turns off) but within 1/10 of a sec, it turns back on by itself.
I've tested the circuit in a sim and it appears to work as expected.
Anyone have experience with this/a similar circuit?
Cheers!