ILD2035 Infineon Technologies, ILD2035 Datasheet - Page 16

• Manufacturer Part Number: ILD2035
• Manufacturer: Infineon Technologies
• Type: Buckr

Specifications of ILD2035

• Packages: SC74
• Vs (min): 8.0 V
• Vs (max): 22.0 V
• Iout (typ): 350.0 mA
• Iout (max): 400.0 mA

6
This section covers the basic information required for calculating the parameters for a certain LED application.
For detailed application information please visit our web site http://www.infineon.com/led.appnotes
6.1
The average output current for the LEDs is set by the external sense resistor
resistor a first approximation can be calculated using
V
Example calculation
V
→
I
→
An easy way to achieve these resistor values is to connect standard resistors in parallel.
LED
R
Data Sheet
sense
S
sense
V
R
= 12 V, 100 µH,
sense
sense
= 375 mA
is dependent on the supply voltage
=
V
= 114 mV
= 303 mΩ
I
sense
LED
Basic Application Information
Setting the average LED current
V
fLED
= 3 V, 3 LEDs in series
V
S
and the number of LEDs in series.
Equation
16
(2).
350 mA Step Down LED Driver
R
sense
Basic Application Information
. To calculate the value of this
Revision 1.0, 2011-08-17
ILD2035
(2)