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LM3424 Datasheet(PDF) 51 Page - Texas Instruments

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Part # LM3424
Description  Constant Current N-Channel Controller with Thermal Foldback for Driving LEDs
PDF  69 Pages
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

LM3424 Datasheet(HTML) 51 Page - Texas Instruments

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background image
SS
TGAIN
OVP
LM3424
nDIM
VIN
GND
TSENSE
TREF
DDRV
VS
COUT
DAP
GATE
EN
COMP
VIN
CSH
RT/SYNC
IS
HSN
SLOPE
VCC
HSP
D1
L1
CIN
RSLP
CBYP
RLIM
Q1
CCMP
RT
CSS
ROV2
ROV1
RUV2
RUV1
RGAIN
NTC
RREF1
RREF2
RBIAS
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
RHSP
RHSN
CNTC
RSNS
RFS
CFS
COV
CREF
18V ± 38V
700 mA
ILED
RBIAS2
RMAX
Q2
Q3
RADJ
Q4
RCSH
VCC
VCC
VS
VS
LM3424, LM3424-Q1
www.ti.com
SNVS603C – AUGUST 2009 – REVISED AUGUST 2015
8.2.5 Boost Application
Figure 43. Boost Application
8.2.5.1 Design Requirements
•
Input: 18V to 38V
•
Output: 12 LEDs at 700mA
•
85°C - 125°C Thermal Foldback
•
Analog Dimming
•
700 kHz Switching Frequency
Copyright © 2009–2015, Texas Instruments Incorporated
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Product Folder Links: LM3424 LM3424-Q1



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