поискавой системы для электроныых деталей
  Russian  ▼
ALLDATASHEETRU.COM

X  

Preview PDF HTML

TLC5960DA датащи(PDF) 23 Page - Texas Instruments

Click here to check the latest version.
номер детали TLC5960DA
подробное описание детали  Eight-Channel LED Driver with Intelligent Headroom Voltage Monitor (iHVM)
PDF  33 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
производитель  TI [Texas Instruments]
домашняя страница  http://www.ti.com
Logo TI - Texas Instruments

TLC5960DA датащи(HTML) 23 Page - Texas Instruments

Back Button TLC5960DA Datasheet HTML 19Page - Texas Instruments TLC5960DA Datasheet HTML 20Page - Texas Instruments TLC5960DA Datasheet HTML 21Page - Texas Instruments TLC5960DA Datasheet HTML 22Page - Texas Instruments TLC5960DA Datasheet HTML 23Page - Texas Instruments TLC5960DA Datasheet HTML 24Page - Texas Instruments TLC5960DA Datasheet HTML 25Page - Texas Instruments TLC5960DA Datasheet HTML 26Page - Texas Instruments TLC5960DA Datasheet HTML 27Page - Texas Instruments Next Button
Zoom Inzoom in Zoom Outzoom out
 23 / 33 page
background image
V
REF
DC/DC
R1
R2
iHVM
Process
Core
R
S
D1
G1
S1
R
S
D2
G2
S2
HVM1
HVM2
R3
V
FB
V
LED
DH2
DH1
V
=
LED
R1+R2
R2
´ V
+
REF
R1
R3
´ (V
V
V )
REF -
-
F
H
V
=
LEDMIN
R1+R2
R2
´ V
+
REF
R1
R3
´ (V
V
1.25)
REF -
-
F
V
=
LEDTYP
R1+R2
R2
´ V
+
REF
R1
R3
´ (V
V
0.7)
REF -
-
F
V
=
LEDMAX
R1+R2
R2
´ V
+
REF
R1
R3
´ (V
V
0.14)
REF -
-
F
TLC5960
www.ti.com
SBVS147 – SEPTEMBER 2010
APPLICATION INFORMATION
CASCADING SYSTEM USING iHVM
iHVM provides flexibility to the application configuration with a minimum of external components. Figure 26
shows an example for using a diode-OR to configure multiple iHVM controllers. This configuration can be
applicable to as many controllers as a daisy-chain configuration allows. Care must be taken regarding the
available HVM voltage range affected by the dc/dc converter reference voltage shown in Equation 13 through
Equation 16. For example, the TPS40210 internal reference voltage is 700mV. In case of this combination, the
diode-OR operation achieves the minimum voltage of the HVM buffer outputs, and the VLED adjustable range is
limited to the upper-half region compared to the normal configuration.
Figure 26. iHVM System Cascade Configuration through a Diode-OR
Where:
VH = Min(VH1,VH2)
VREF – VF – VH ≥ 0
VF = forward voltage of DH1 and DH2
(13)
(14)
(15)
(16)
In this case, if VREF = 0.7V, R1 = 200kΩ, R2 = 1kΩ, and R3 = 20kΩ, then the diode forward voltage of VF = 0.3V
and the available VLED output range would be 138V to 143V. Refer to Equation 9 to compare with normal
conditions.
Copyright © 2010, Texas Instruments Incorporated
Submit Documentation Feedback
23
Product Folder Link(s): TLC5960



Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33


датащи скачать

Go To PDF Page


ссылки URL



Вашему бизинису помогли Аллдатащит?  [ DONATE ] 

Что такое Аллдатащит   |   реклама   |   контакт   |   Конфиденциальность   |   Ссылка на техническое описание    |   обмен ссыками   |   поиск по производителю
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