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LM3421 데이터시트(PDF) 51 Page - Texas Instruments

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부품명 LM3421
상세설명  N-Channel Controllers for Constant-Current LED Drivers
PDF  72 Pages
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제조업체  TI1 [Texas Instruments]
홈페이지  http://www.ti.com
Logo TI1 - Texas Instruments

LM3421 데이터시트(HTML) 51 Page - Texas Instruments

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CO
D1
Q1
ROV2
ROV1
2A
ILED
RSNS
RFS
CFS
COV
Q5
V
IN
10V ± 30V
Q7
Q6
Q4
D2
VIN
DIM
RPU
RSER
DIM
CB
CF
RF
Q2
OVP
nDIM
LM3421
AGND
V
IN
PGND
DDRV
DAP
GATE
EN
COMP
VIN
CSH
RCT
IS
HSP
RPD
VCC
HSN
L1
CBYP
RLIM
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
RPOT
LM3421, LM3421-Q1, LM3423, LM3423-Q1
www.ti.com
SNVS574F – JULY 2008 – REVISED JULY 2015
8.2.4 LM3421 Buck-Boost Application
Figure 39. LM3421 Buck-Boost Application
8.2.4.1 Design Requirements
•
Input: 10 V to 30 V
•
Output: 4 LEDs at 2 A
•
PWM Dimming up to 10 kHz
•
Analog Dimming
•
600-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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