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LM3421 Scheda tecnica(PDF) 49 Page - Texas Instruments

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Il numero della parte LM3421
Spiegazioni elettronici  N-Channel Controllers for Constant-Current LED Drivers
PDF  72 Pages
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Produttore elettronici  TI1 [Texas Instruments]
Homepage  http://www.ti.com
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LM3421 Scheda tecnica(HTML) 49 Page - Texas Instruments

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CO
D1
ROV2
ROV1
RSNS
RFS
CFS
COV
8V ± 28V
1A
ILED
Q2
OVP
nDIM
LM3421
AGND
VIN
PGND
DDRV
DAP
GATE
EN
COMP
VIN
CSH
RCT
IS
HSP
RPD
VCC
HSN
L1
CBYP
RLIM
Q1
CCMP
RCSH
RT
RUV2
RUV1
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
RHSN
RHSP
Q3
PWM
RUVH
CT
CIN
D2
LM3421, LM3421-Q1, LM3423, LM3423-Q1
www.ti.com
SNVS574F – JULY 2008 – REVISED JULY 2015
8.2.3 LM3421 BOOST Application
Figure 38. LM3421 BOOST Application
8.2.3.1 Design Requirements
•
Input: 8 V to 28 V
•
Output: 9 LEDs at 1 A
•
PWM Dimming up to 30kHz
•
700-kHz Switching Frequency
Copyright © 2008–2015, Texas Instruments Incorporated
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Product Folder Links: LM3421 LM3421-Q1 LM3423 LM3423-Q1



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