LTC4412
Recommended for New Designs
The LTC4412 controls an external P-channel MOSFET to create a near ideal diode function for power switchover or load sharing. This permits highly efficient...
Datasheet
LTC4412 on Analog.com
LTC4365
Recommended for New Designs
The LTC4365 protects applications where power supply input voltages may be too high, too low or even negative. It does this by controlling the gate voltages...
Datasheet
LTC4365 on Analog.com
Hello all,
I wish use the LTC4412 as a high side load switch controller:
In the datasheet, I can see that the turn on time is relatively fast (in the usec range)
is is possible to increase the turn on time in order to further reduce inrush current? at least to the msec range...
Thanks
Nir
with the LTC4412 there is no option for slew rate control?
NFETs with a downstream Cout is in a follower configuration. The controller slews Vgate, Vout follows, and inrush is controlled.
PFETs with a downstream Cout is in an amplifier configuration, so the NFET inrush control methods won't work.
I know there are more suitable options, but I have to keep the quiescent current below 30uA.
Try the LTC4372/3 with back-to-back FETs. (Iq=5uA)
Ratio of C2 to Cout controls inrush.
