Datasheet

DocID024346 Rev 1 21/42
LED2001 Application notes
Figure 13. Dimming signal
For example, assuming a 1 kHz dimming frequency the maximum dimming depth is 5% or,
given a 2% dimming depth, it follows a 200 Hz maximum f
DIM
.
The LED2001 dimming performance is strictly dependent on the system small signal
response. As a consequence, an optimized compensation (good phase margin and
bandwidth maximized) and minimized C
OUT
value are crucial for the best performance.
6.7 eDesign studio software
The LED2001 is supported by the eDesign software which can be viewed online at
www.st.com.
Figure 14. eDesign studio screenshot
The software easily supports the component sizing according to the technical information
given in this datasheet (see Section 6 and Section 7).
The end user is requested to fill in the requested information such as the input voltage
range, the selected LED parameters and the number of LEDs composing the row.
AM12904v1