Electronic Components Datasheet Search
  English  ▼

Delete All
ON OFF
ALLDATASHEET.NET

X  

Preview PDF Download HTML

XRP7618EVB Datasheet(PDF) 7 Page - Exar Corporation

Part No. XRP7618EVB
Description  8-Channel Constant Current Linear LED Driver With Smart TalkTM
Download  10 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Manufacturer  EXAR [Exar Corporation]
Direct Link  http://www.exar.com
Logo EXAR - Exar Corporation

XRP7618EVB Datasheet(HTML) 7 Page - Exar Corporation

Back Button XRP7618EVB Datasheet HTML 2Page - Exar Corporation XRP7618EVB Datasheet HTML 3Page - Exar Corporation XRP7618EVB Datasheet HTML 4Page - Exar Corporation XRP7618EVB Datasheet HTML 5Page - Exar Corporation XRP7618EVB Datasheet HTML 6Page - Exar Corporation XRP7618EVB Datasheet HTML 7Page - Exar Corporation XRP7618EVB Datasheet HTML 8Page - Exar Corporation XRP7618EVB Datasheet HTML 9Page - Exar Corporation XRP7618EVB Datasheet HTML 10Page - Exar Corporation  
Zoom Inzoom in Zoom Outzoom out
 7 / 10 page
background image
X
XR
RP
P7
76
61
18
8
8
8--C
Ch
ha
an
nn
ne
ell C
Co
on
ns
stta
an
ntt C
Cu
urrrre
en
ntt L
Liin
ne
ea
arr L
LE
ED
D D
Drriiv
ve
err W
Wiitth
h
S
Sm
ma
arrtt T
Ta
allk
kTTM
M
© 2011 Exar Corporation
7/10
Rev. 1.0.0
a logic low to the converter via the SDB signal.
Furthermore, the SDB signal is synchronous to
the PWM signal when PWM dimming is used.
OPEN LED PROTECTION
The XRP7618 provides a built-in protection for
open LED channel. Upon detection of an open
LED channel event, the FB signal is driven low
to allow the step-up converter to operate open
loop which in turn raises the voltage on the
remaining
CHx
pins.
Upon
reaching
an
internally
pre-set
threshold
of
3V,
the
XRP7618 identifies the faulty channel and
removes it from the control and reporting
loop. At this point the FB signal resumes its
normal function of reporting the lowest LED
channel voltage and hence restores the proper
operations of the converter. Note that the
open LED channel is not disabled; however, its
CHx voltage is no longer reported. Upon
reconnection of the open LED channel, current
will be driven at the programmed level.
PARALLEL MODE OF OPERATION
Multiple XRP7618s can be placed in parallel to
drive over 8 strings of LEDs; however, unused
channels should be tied to ground.
While the initial XRP7618 is connected to the
step-up converter via its FB and SDB pins, the
daisy chained XRP7618s are connected to each
other through the respective FBX and SDBX
pins. In this configuration, the initial XRP7618
reports the lowest LED voltage and SDB signal
of all the XRP7618s in parallel. Refer to figure
12.
TYPICAL APPLICATION SCHEMATICS
Fig. 11: Single XRP7618 Application


Similar Part No. - XRP7618EVB

ManufacturerPart No.DatasheetDescription
Exar Corporation
Exar Corporation
XRP7618 EXAR-XRP7618 Datasheet
765Kb / 7P
   8-Channel Constant Current Linear LED Driver With Smart TalkTM
More results

Similar Description - XRP7618EVB

ManufacturerPart No.DatasheetDescription
Exar Corporation
Exar Corporation
XRP2997_1108 EXAR-XRP2997_1108 Datasheet
765Kb / 7P
   8-Channel Constant Current Linear LED Driver With Smart TalkTM
Maxic Technology Corporation
Maxic Technology Corpor...
MT7603 MAXIC-MT7603 Datasheet
98Kb / 1P
   Linear Constant - Current LED Driver
ON Semiconductor
ON Semiconductor
CAT4008 ONSEMI-CAT4008 Datasheet
160Kb / 13P
   8-Channel Constant Current LED Driver
March, 2010 ??Rev. 2
Comchip Technology
Comchip Technology
TB62783FNG COMCHIP-TB62783FNG_15 Datasheet
74Kb / 6P
   8-Channel Constant-Current LED Driver
Marktech Corporate
Marktech Corporate
TB62777FNG MARKTECH-TB62777FNG_15 Datasheet
338Kb / 20P
   8-Channel Constant-Current LED Driver
Catalyst Semiconductor
Catalyst Semiconductor
CAT4008 CATALYST-CAT4008 Datasheet
258Kb / 14P
   8-Channel Constant Current LED Driver
Marktech Corporate
Marktech Corporate
TB62783FNG MARKTECH-TB62783FNG Datasheet
74Kb / 6P
   8-Channel Constant-Current LED Driver
Maxic Technology Corporation
Maxic Technology Corpor...
MT7604 MAXIC-MT7604 Datasheet
99Kb / 1P
   Linear Constant - Current LED Driver
E-CMOS Corporation
E-CMOS Corporation
EC4211 E-CMOS-EC4211 Datasheet
482Kb / 8P
   Constant Current Linear LED Driver
ON Semiconductor
ON Semiconductor
CAT4008W-T2 ONSEMI-CAT4008W-T2 Datasheet
216Kb / 14P
   8-Channel Constant Current LED Driver
Doc. No. MD-5034 Rev. C
More results


Html Pages

1  2  3  4  5  6  7  8  9  10 


Datasheet Download

Go To PDF Page


Link URL




Privacy Policy
ALLDATASHEET.NET
Does ALLDATASHEET help your business so far?  [ DONATE ] 

About Alldatasheet   |   Advertisement   |   Contact us   |   Privacy Policy   |   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