I have an automotive application that has a load dump requirement that will result in a rapid rise of input voltage - how well does the feedback loop on these deal with this?
Other Parts Discussed in Thread: LM5009A , SM72485 , LM5009 Dear Sir
May I know what's different between LM5009 / LM5009A / SM72485??
I don't know which is TI focus and popular solution
Thanks
Other Parts Discussed in Thread: LM5009A Hi all, Please let us know about LM5009A's RCL resistor size. On Table 2 in datasheet, using a 1/4W resistor. In evaluation board of LM5009A, using a 1/10W resistor. How much the minimum size (wattage) necessary…
Other Parts Discussed in Thread: LM5009A , SM72485 , LM5009 This is a heads up for TI to issue an errata and to help any designers presently using these parts.
In both the SM72485 and LM5009A, there is an error in the given formula to calculate Toff…
Other Parts Discussed in Thread: SM72485 , LM5009A Please let me know about SM72485 below.
・What difference of SM72485 & LM5009A?
I didn't find different on Datasheet.
Best regards,
Satoshi
Just starting to play with this ic.
It is configured to output 5v (rfb1 = 10k, rfb2 = 10k). It also has a 630uH inductor on the switch.
There is a 1 ohm that feeds inductor current to a 470uF cap on the output side. The feedback divider as stated…
Hello Natesan,
Thanks for reaching out with your questions and for using the SM72485.
There is not a high voltage version of the SM3320 design available. It should be possible to change the components to meet the voltage requirements of your application…
Hi Michelle,
Thanks for reaching out on SM3320 and welcome to e2e.
Your understanding of the duty cycles for dc/dc is correct. The MPPT controller, SM72442, should control the dc/dc converter. Examples of these signals and duty cycles can be found…
Hello Sourav-san, May I ask you questions? - LM5009A and SM72485 are same the devices? - Why do these devices have different name? (for marketing?) Regards, Yoshitaka
