Electronic Components Datasheet Search
  New Zealand  ▼
ALLDATASHEET.CO.NZ

X  

Preview PDF HTML

AN2129 Datasheet(PDF) 5 Page - STMicroelectronics

Part # AN2129
Description  DIMMING OF SUPER HIGH BRIGHTNESS LEDS
PDF  9 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

AN2129 Datasheet(HTML) 5 Page - STMicroelectronics

  AN2129 Datasheet HTML 1Page - STMicroelectronics AN2129 Datasheet HTML 2Page - STMicroelectronics AN2129 Datasheet HTML 3Page - STMicroelectronics AN2129 Datasheet HTML 4Page - STMicroelectronics AN2129 Datasheet HTML 5Page - STMicroelectronics AN2129 Datasheet HTML 6Page - STMicroelectronics AN2129 Datasheet HTML 7Page - STMicroelectronics AN2129 Datasheet HTML 8Page - STMicroelectronics AN2129 Datasheet HTML 9Page - STMicroelectronics  
Zoom Inzoom in Zoom Outzoom out
 5 / 9 page
background image
5/9
AN2129 APPLICATION NOTE
Figure 7. Dimming network with zero dimming voltage (maximum current)
Eq 1
The second limit state is depicted in Figure 8. In this case the current through the Rsense is
zero (LED is off) and thus on point A there is a zero voltage (i.e. ground). The Equation 2
shows the calculation for this state.
Figure 8. Dimming network with maximum dimming voltage (zero output current)
Eq 2
Vdimm = 0V
100mV
R5 R6 I
LED Rsense
⋅⋅
⋅
R4 R5
⋅
R4 R6
⋅
R5 R6
⋅
++
---------------------------------------------------------------------------
=
Vdimm = 3.3V
100mV
V
dimMAX
R4 R5
⋅
R4 R5
⋅
R4 R6
⋅
R5 R6
⋅
++
---------------------------------------------------------------------------
=



Html Pages

1 2 3 4 5 6 7 8 9


Datasheet Download

Go To PDF Page


Link URL



Does ALLDATASHEET help your business so far?  [ DONATE ] 

About Alldatasheet   |   Advertisement   |   Contact us   |   Privacy Policy   |   Link to Datasheet    |   Link Exchange   |   Manufacturer List
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com