전자부품 데이터시트 검색엔진
  Korean  ▼
ALLDATASHEET.CO.KR

X  

Preview PDF HTML

LM3532 데이터시트(PDF) 42 Page - Texas Instruments

부품명 LM3532
상세설명  LM3532 High-Efficiency White LED Driver With Programmable Ambient Light Sensing Capability and I2C-Compatible Interface
PDF  52 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
제조업체  TI2 [Texas Instruments]
홈페이지  https://www.ti.com
Logo TI2 - Texas Instruments

LM3532 데이터시트(HTML) 42 Page - Texas Instruments

Back Button LM3532 Datasheet HTML 38Page - Texas Instruments LM3532 Datasheet HTML 39Page - Texas Instruments LM3532 Datasheet HTML 40Page - Texas Instruments LM3532 Datasheet HTML 41Page - Texas Instruments LM3532 Datasheet HTML 42Page - Texas Instruments LM3532 Datasheet HTML 43Page - Texas Instruments LM3532 Datasheet HTML 44Page - Texas Instruments LM3532 Datasheet HTML 45Page - Texas Instruments LM3532 Datasheet HTML 46Page - Texas Instruments Next Button
Zoom Inzoom in Zoom Outzoom out
 42 / 52 page
background image
SW
ILED1
GND
LM3532
Up to 40V
L
D1
Paracitic
Circuit Board
Inductances
Current through
inductor
Pulsed voltage at SW
Voltage Spike
LCD Display
SDA
SCL
IN
OVP
COUT
Current through
Schottky Diode and COUT
2.7V to 5.5V
10 k:
10 k:
Affected Node
due to capacitive
coupling
Cp1
Lp1
Lp2
Lp3
VLOGIC
IAVE = IIN
IPEAK
VOUT + VF Schottky
ILED2
ILED3
LM3532
SNVS653E – JULY 2011 – REVISED AUGUST 2015
www.ti.com
10 Layout
10.1 Layout Guidelines
The LM3532 contains an inductive boost converter which sees a high switched voltage (up to 40 V) at the SW
pin, and a step current (up to 1 A) through the Schottky diode and output capacitor each switching cycle. The
high switching voltage can create interference into nearby nodes due to electric field coupling (I = CdV/dt). The
large step current through the diode, and the output capacitor can cause a large voltage spike at the SW pin and
the OVP pin due to parasitic inductance in the step current conducting path (V = LdI/dt). Board layout guidelines
are geared towards minimizing this electric field coupling and conducted noise. Figure 44 highlights these two
noise generating components.
Figure 44. LM3532'S Boost Converter Showing Pulsed Voltage at SW (High Dv/Dt) and
Current Through Schottky and COUT (High Di/Dt)
42
Submit Documentation Feedback
Copyright © 2011–2015, Texas Instruments Incorporated
Product Folder Links: LM3532



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


데이터시트 다운로드

Go To PDF Page


링크 URL



ALLDATASHEET 가 귀하에 도움이 되셨나요?  [ DONATE ] 

Alldatasheet는?   |   광고문의   |   운영자에게 연락하기   |   개인정보취급방침   |   링크 투 데이터시트    |   링크교환   |   제조사별 검색
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