LM34925: LM34925

Aravind .R

Genius 3175 points

Part Number: LM34925
Other Parts Discussed in Thread: LM5160

Dear sir,

In the above mentioned part number that is LM34925 (Isolated DC-DC Converter),

Can we use only single output (VOUT2), by making VOUT1 as dummy ?
Since the minimum input voltage for LM34925 is 7.5V , what happens at the output if the IC(LM34925) receives below the min input voltage (Ex is ,if suppose the input voltage is 5V) ?
Is it possible to tune the output voltages by resistor ?

Awaiting for your kind replays

Thanks

Hemantha Kumara N K

over 7 years ago

0 Arief Hernadi over 7 years ago

TI__Mastermind 23845 points

Hi,

1) Yes you can just use VOUT2 and use VOUT1 unloaded. But keep in mind that the FB is taken from VOUT1 and regulation is based on VOUT1
2) I am not sure that it will work because the VCC voltage is 7.6V therefore you might not have enough gate drive. You can use LM5160 flybuck configuration maybe.
3) Yes you can tune the output by feedback resistor and you might need a zener for VOUT2 to keep the output not overvoltage

Thanks
-Arief

0 Aravind .R over 7 years ago in reply to Arief Hernadi

Genius 3175 points

Thanks Areif , It will be helps us alot.

Rgrds,

Hemantha Kumara N K

Power management

Power management forum

LM34925: LM34925