UA723: Sense resistor value selection

Bala Thirumavalavan

Part Number: UA723

Hi,

Could you please tell me how to calculate the current sense resistor value?

In my application the current limit is 1.25 Amp. @ 45 volts.

Thank you

Bala Thirumavalavan

0 Stephen Ziel over 3 years ago

Hi Bala,

Table 2 in the datasheet lists a formula for the current limit sense resistor.
For 1.25A the value should be 0.52 ohms.

Thanks,

- Stephen

0 Bala Thirumavalavan over 3 years ago in reply to Stephen Ziel

Hi Stephen,

I appreciate your quick response. This was very helpful to me.

Best Regards,

Bala T.

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