Electronic Components Datasheet Search
  English  ▼

X  

Preview PDF HTML

LM3421 Datasheet(PDF) 47 Page - Texas Instruments

Click here to check the latest version.
Part # LM3421
Description  N-Channel Controllers for Constant-Current LED Drivers
PDF  72 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

LM3421 Datasheet(HTML) 47 Page - Texas Instruments

Back Button LM3421 Datasheet HTML 43Page - Texas Instruments LM3421 Datasheet HTML 44Page - Texas Instruments LM3421 Datasheet HTML 45Page - Texas Instruments LM3421 Datasheet HTML 46Page - Texas Instruments LM3421 Datasheet HTML 47Page - Texas Instruments LM3421 Datasheet HTML 48Page - Texas Instruments LM3421 Datasheet HTML 49Page - Texas Instruments LM3421 Datasheet HTML 50Page - Texas Instruments LM3421 Datasheet HTML 51Page - Texas Instruments Next Button
Zoom Inzoom in Zoom Outzoom out
 47 / 72 page
background image
ROV1 = 13.7 k:
ROV2 = 432 k:
=
V
OFF
TURN
=
-
V
= 39.7
R
OV1
k
7
.
13
:
(
)
k
432
k
7
.
13
1.24V
:
+
:
x
(
)
R
R
1.24V
OV2
OV1 +
x
V
OFF
TURN-
0.5 x
0.5 x
LM3421, LM3421-Q1, LM3423, LM3423-Q1
www.ti.com
SNVS574F – JULY 2008 – REVISED JULY 2015
Typical Applications (continued)
(147)
The chosen components from step 12 are:
(148)
Table 1. Bill of Materials
QTY
PART ID
PART VALUE
MANUFACTURER
PART NUMBER
1
LM3421
Buck-boost controller
TI
LM3421MH
1
CBYP
2.2-µF X7R 10% 16V
MURATA
GRM21BR71C225KA12L
1
CCMP
0.33-µF X7R 10% 25V
MURATA
GRM21BR71E334KA01L
1
CFS
0.27-µF X7R 10% 25V
MURATA
GRM21BR71E274KA01L
4
CIN
4.7-µF X7R 10% 100V
TDK
C5750X7R2A475K
4
CO
10-µF X7R 10% 50V
TDK
C4532X7R1H106K
1
COV
47-pF COG/NPO 5% 50V
AVX
08055A470JAT2A
1
CT
1000-pF COG/NPO 5% 50V
MURATA
GRM2165C1H102JA01D
1
D1
Schottky 100 V 12 A
VISHAY
12CWQ10FNPBF
1
L1
33 µH 20% 6.3 A
COILCRAFT
MSS1278-333MLB
1
Q1
NMOS 100 V 32 A
FAIRCHILD
FDD3682
1
Q2
PNP 150 V 600 mA
FAIRCHILD
MMBT5401
1
RCSH
12.4 k
Ω 1%
VISHAY
CRCW080512K4FKEA
1
RFS
10
Ω 1%
VISHAY
CRCW080510R0FKEA
2
RHSP, RHSN
1 k
Ω 1%
VISHAY
CRCW08051K00FKEA
1
RLIM
0.04
Ω 1% 1 W
VISHAY
WSL2512R0400FEA
1
ROV1
13.7 k
Ω 1%
VISHAY
CRCW080513K7FKEA
1
ROV2
432 k
Ω 1%
VISHAY
CRCW0805432KFKEA
1
RSNS
0.1
Ω 1% 1 W
VISHAY
WSL2512R1000FEA
1
RT
49.9 k
Ω 1%
VISHAY
CRCW080549K9FKEA
1
RUV1
18.2 k
Ω 1%
VISHAY
CRCW080518K2FKEA
1
RUV2
130 k
Ω 1%
VISHAY
CRCW0805130KFKEA
Copyright © 2008–2015, Texas Instruments Incorporated
Submit Documentation Feedback
47
Product Folder Links: LM3421 LM3421-Q1 LM3423 LM3423-Q1



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 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72


Datasheet Download

Go To PDF Page


Link URL



Does ALLDATASHEET help your business so far?  [ DONATE ] 

About Alldatasheet   |   Advertisement   |   Contact us   |   Privacy Policy   |   Link to Datasheet    |   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
Family Site : ic2ic.com  |   icmetro.com