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LM3648 датащи(PDF) 2 Page - Texas Instruments

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номер детали LM3648
подробное описание детали  Synchronous Boost LED Flash Driver
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производитель  TI1 [Texas Instruments]
домашняя страница  http://www.ti.com
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LM3648 датащи(HTML) 2 Page - Texas Instruments

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LM3648, LM3648TT
SNVSA68B – OCTOBER 2014 – REVISED SEPTEMBER 2015
www.ti.com
Table of Contents
7.4
Device Functioning Modes...................................... 13
1
Features .................................................................. 1
7.5
Programming........................................................... 16
2
Applications ........................................................... 1
7.6
Register Descriptions .............................................. 18
3
Description ............................................................. 1
8
Applications and Implementation ...................... 22
4
Revision History..................................................... 2
8.1
Application Information............................................ 22
5
Pin Configuration and Functions ......................... 3
8.2
Typical Application ................................................. 22
6
Specifications......................................................... 4
9
Power Supply Recommendations ...................... 27
6.1
Absolute Maximum Ratings ...................................... 4
10
Layout................................................................... 27
6.2
ESD Ratings.............................................................. 4
10.1
Layout Guidelines ................................................. 27
6.3
Recommended Operating Conditions ....................... 4
10.2
Layout Example ................................................... 28
6.4
Thermal Information .................................................. 4
11
Device and Documentation Support ................. 29
6.5
Electrical Characteristics........................................... 5
11.1
Device Support...................................................... 29
6.6
Timing Requirements ............................................... 5
11.2
Documentation Support ........................................ 29
6.7
Switching Characteristics .......................................... 6
11.3
Trademarks ........................................................... 29
6.8
Typical Characteristics .............................................. 6
11.4
Community Resources.......................................... 29
7
Detailed Description ............................................ 10
11.5
Electrostatic Discharge Caution ............................ 29
7.1
Overview ................................................................. 10
11.6
Glossary ................................................................ 29
7.2
Functional Block Diagram ...................................... 11
12
Mechanical, Packaging, and Orderable
7.3
Feature Description ................................................ 11
Information ........................................................... 30
4 Revision History
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
Changes from Revision A (August 2015) to Revision B
Page
Added "or 0x04 for LM3648TT" to Device ID Register row, Register Descriptions table..................................................... 18
Changed "'011'" to "'000'" in Device Register Bits 5-3 description ....................................................................................... 21
Changes from Original (October 2014) to Revision A
Page
Added Torch Currents up to 500 mA (LM3648TT)................................................................................................................. 1
Added Flash Timeout Values up to 1.6 seconds (LM3648TT) .............................................................................................. 1
Changed Handling Ratings to ESD Ratings; moved storage temperature to Abs Max ......................................................... 4
Added ILED row for LM3648TT option .................................................................................................................................... 5
Added VHR row for LM3648TT option .................................................................................................................................... 5
Added several new graphs related to LM3648TT option performance ................................................................................. 5
Added to 1.6 s on LM3648TT in Flash Time-Out ................................................................................................................. 15
Added additional equation and LM3648TT values in LED Torch Brightness Register; added NOTE below LED Torch
Brightness Register description ........................................................................................................................................... 19
Added LM3648TT values for Timing Configuration Register; added NOTE below Timing Configuration Register
description ........................................................................................................................................................................... 20
Added "or '100'" for LM3648TT in Device ID Register Bits 2-0 description ......................................................................... 21
Added Application curves for LM3648TT performance ....................................................................................................... 24
2
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Product Folder Links: LM3648 LM3648TT


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