Calculator
LED Driver Calculator
V
I
N
[
V
]
V_{IN}~\left[\text{V}\right]
Input Voltage
V
L
E
D
[
V
]
V_{LED}~\left[\text{V}\right]
LED Forward Voltage
I
L
E
D
[
A
]
I_{LED}~\left[\text{A}\right]
LED Current
R
S
[
Ω
]
R_S~\left[\Omega\right]
Current Sense Resistance
V
D
[
V
]
V_D~\left[\text{V}\right]
Flyback Diode Forward Voltage
L
[
H
]
L~\left[\text{H}\right]
Inductor Value
R
L
[
Ω
]
R_L~\left[\Omega\right]
Inductor Resistance
Δ
I
[
A
]
\Delta I~\left[\text{A}\right]
Ripple
IC Specification
V
S
[
V
]
V_S~\left[\text{V}\right]
Current Sense Voltage
Δ
I
/
I
L
E
D
\Delta I / I_{LED}
Ripple Factor
R
L
X
[
Ω
]
R_{LX}~\left[\Omega\right]
Switch Resistance
Switching Characteristics
T
O
N
[
s
]
T_{ON}~\left[\text{s}\right]
On Time
T
O
F
F
[
s
]
T_{OFF}~\left[\text{s}\right]
Off Time
D
D
Duty Cycle
f
S
W
[
Hz
]
f_{SW}~\left[\text{Hz}\right]
Switch Frequency