EVALED2000P STMicroelectronics, EVALED2000P Datasheet - Page 18

• Manufacturer Part Number: EVALED2000P
• Description: LED Lighting Development Tools LED2000 3A 850KHz 3.0V to 18V Eval BRD
• Manufacturer: STMicroelectronics

Specifications of EVALED2000P

• Product Category: LED Lighting Development Tools
• Rohs: yes
• Product: Evaluation Boards
• Operating Supply Voltage: 3 V to 18 V
• For Use With: LED2000

Application notes
6.6
18/40
Figure 9.
Figure 10. Phase plot
The cut-off frequency and the phase margin are:
Equation 18
Dimming operation
The dimming input disables the switching activity, masking the PWM comparator output.
The inductor current dynamic when dimming input goes high depends on the designed
system response. The best dimming performance is obtained maximizing the bandwidth
and phase margin, when it is possible.
As a general rule, the output capacitor minimization improves the dimming performance.
f
C
=
100 kHz
Module plot
pm
=
47
Doc ID 023432 Rev 3
LED2000