LED Driver Design Calculator
Design constant-current LED drivers. Calculate inductor, sense resistor, and efficiency.
Key Formulas
Duty (Buck): D = VLED/Vin
Inductor: L = (Vin-VLED)×D/(ΔIL×fsw)
Sense R: Rsense = 0.2V/ILED
Design constant-current LED drivers. Calculate inductor, sense resistor, and efficiency.
Duty (Buck): D = VLED/Vin
Inductor: L = (Vin-VLED)×D/(ΔIL×fsw)
Sense R: Rsense = 0.2V/ILED