Lm3915 Calculator Updated

The maximum voltage (0dB point) at Pin 5 determines the top LED.

VREF=1.25×(1+R2R1)+(IADJ×R2)cap V sub cap R cap E cap F end-sub equals 1.25 cross open paren 1 plus the fraction with numerator cap R sub 2 and denominator cap R sub 1 end-fraction close paren plus open paren cap I sub cap A cap D cap J end-sub cross cap R sub 2 close paren IADJcap I sub cap A cap D cap J end-sub is typically very small ( ) and can be ignored for standard hobbyist calculations. Equation 2: LED Current Programming ( ILEDcap I sub cap L cap E cap D end-sub lm3915 calculator updated