Other Parts Discussed in Thread: LM2597 Could anyone help me please to get AC Transfer Characteristic for LM2597.
While AC Analysis i get error:
Operation point not found
Best regards, Vladimir.
Part Number: LM2597HV Other Parts Discussed in Thread: LM2597 Hi Team,
My customer is looking for alternate source to LM2594HVN-ADJ/NOPB due to supply situation, can you please advise on the following comparing this device to LM2597HVN-ADJ/NOPB? Thanks…
Other Parts Discussed in Thread: LM2597 Hey TI.
I try to configure the LM2597 with following parameters.
Vin 30-38V, Vout 5-7V, Iout 120-200mA max.
In datasheet i to see a 330uH value for inductor, but in simulation it's 1mH. What's correct? Also, what…
The LM2597 can be used, however the DELAY pin must be left floating.
Another option is the LM2674; you need one extra capacitor for that device.
The LM2574 is another option but it is not P-to-P.
The TPS54321 seems to be in stock; but again is not…
The LM2596 has only an "on/off" or "shutdown" control for controlling the device.
Other devices in the family, such as the LM2597, have more features; such as a combined shutdown and soft-start pin called SD/SS.
The LM2596 and LM2595…
The soft-start for the LM2596 is fixed and not specified. We can not guarantee that it is longer than 200us
However, the LM2597 or LM2598 both have adjustable soft-start; one of these may be a better choice.
One way to implement external UVLO can be found in the LM2597 datasheet (page 37, figure 50).
Here is a link:
May be you can use this with the LM2678 ON/OFF pin and implement UVLO for your required input range.
I need some clarification on this statemtent "Is a neg voltage w.r.t gnd allowable on the SD ." , Which GND is the customer referring to? System GND or the GND of the part? You can have a negative voltage with respect to system GND but not to…
The data sheet for the LM2596 shows a way to provice a delayed start funcion.
This may be of some help in your application.
If you need a true soft start then you can use the LM2597; this device has an external soft start feature.
You could also use the…