• RE: LT4356-1 & LTC4364-2 negative protect

    HI Snow.Hung,

    Your interpretation is right . With its Ideal diode functionality LTC4364 isolates the output from input completely in case reverse current develops and hence the output voltage is held up in case of input short etc.

    With the LTC4356 surge…

  • LTC4364

    Hi,

    I want to add a resistor (e.g. 1k) between Current_Shunt  and Sens-Pin, and a Resistor (e.g. 220K) from Vin to Sens-Pin.

    A higher Input/output Voltage difference should then result in a lower current limitation. My goal is , to better adopt to the…

  • LTC4364 OV triggering early

    Hello, 

    When trying to Verify our protection circuit using the LTC4364, the overvoltage protection triggers below the 1.25V level on the OV pin.  We have designed for an OV level of around 60V but the device shuts off the HGATE Pin at 51V.  All other protection…

  • RE: LT4363 - Fault detection during Reverse voltage application

    Hi Anup,

    I would recommend using LTC4364 for your application . LTC4364 has independent Mosfet and ideal diode controller and fault indication in case of reverse current and reverse voltage protection. This would reduce external component count and simplify…

  • RE: LTC4364 OV timeout length

    The schematic is here:

    I discovered the answer right after posting the question yesterday. The current consumption of the LTC4364 and the pullups that are tied to Vcc create enough of a drop over R6 that Vcc is only about 48V when the input to the filter…

  • Reverse input current for LTC4364 demo board

    Hi there,

    We are evaluating the reverse polarity protection feature of the LTC4364 using the DC2027A-B demo board.  When a reverse input voltage was applied, the reverse input current was 35 mA.  We were expecting a much smaller value.  Why would there…

  • LTC4364 OV and UV protection

    The LTC4364 is configured with UV = 6V, OV = 32V, Clamp = 28V and CTMR = 2.2uF and run MIL STD 704A test for abnormal overvoltage with 50V and duration of 50msec then what is expected output? Will it clamp to 28V or not output due to over voltage detection…

  • How low can be CTMR in LTC4364 ?

    Dear all,

    I'm using the LTC4364 in a circuit where M1 and M2 are the same MOSFET. When an inrush current is present, M1 gets damaged and M2 keeps intact.

    M1 damaged means RDS(ON) increases a lot and it starts having heat problems event at low loads…

  • PSpice model

    Hello,

    I have done some simulation in LTSpice, for LTC4364-2, and due to good results I would like to introduce this circuit in an Orcad PSpice simulation. Is it available a PSpice model for this circuit? 

    Thank you in advance.

  • LTC4364 MOSFET selection using P^2 t

    Hello all

    The LTC4364 datasheet page 15 says "MOSFET SOA" (safe operating area) "is expressed in units of watt-squared-seconds (P^2 t), which is an integral of P(t)^2 dt over the duration of the transient. This figure is essentially constant for intervals…