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LP8556 数据手册 - TI（德州仪器）
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TI（德州仪器）
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6 通道高效 LED 背光驱动器
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LP8556数据手册
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LP8556
ZHCSD61H –JULY 2012–REVISED DECEMBER 2014
www.ti.com.cn
目目录录
8.1 Overview................................................................. 12
1 特特性性.......................................................................... 1
8.2 Functional Block Diagram....................................... 12
2 应应用用.......................................................................... 1
8.3 Feature Description................................................. 13
3 说说明明.......................................................................... 1
8.4 Device Functional Modes........................................ 27
4 修修订订历历史史记记录录 ........................................................... 2
8.5 Programming........................................................... 27
5 Device Options....................................................... 3
8.6 Register Maps......................................................... 31
6 Pin Configuration and Functions......................... 4
9 Application and Implementation ........................ 44
7 Specifications......................................................... 6
9.1 Application Information............................................ 44
7.1 Absolute Maximum Ratings...................................... 6
9.2 Typical Application ................................................. 46
7.2 Handling Ratings....................................................... 6
10 Power Supply Recommendations ..................... 50
7.3 Recommended Operating Conditions....................... 6
11 Layout................................................................... 50
7.4 Thermal Information.................................................. 6
11.1 Layout Guidelines ................................................. 50
7.5 Electrical Characteristics........................................... 7
11.2 Layout Examples................................................... 51
7.6 Electrical Characteristics — Boost Converter .......... 8
12 器器件件和和文文档档支支持持 ..................................................... 53
7.7 Electrical Characteristics — LED Driver ................... 9
12.1 商标 ....................................................................... 53
7.8 PWM Interface Characteristics ................................. 9
12.2 静电放电警告......................................................... 53
7.9 Logic Interface Characteristics................................ 10
12.3 术语表 ................................................................... 53
7.10 I
2
C Serial Bus Timing Parameters (SDA, SCL).... 10
13 机机械械封封装装和和可可订订购购信信息息 .......................................... 53
7.11 Typical Characteristics.......................................... 11
8 Detailed Description............................................ 12
4 修修订订历历史史记记录录
Changes from Revision G (November 2013) to Revision H Page
• 已添加
引脚配置和功能
部分，
处理额定值
表，
特性描述
部分，
器件功能模式
，
应用和实施
部分，
电源相关建议
部分，
布局
部分，
器件和文档支持
部分以及
机械、封装和可订购信息
部分........................................................................................ 1
Changes from Revision E (August 2013) to Revision G Page
• Changed Description of "1=" for OCP row in Fault table, STATUS Register Section.......................................................... 33
• Changed A7h values for E02, E03, E04, E06, E07, E09, E11 DSGBA EPROM Bit Explanations tables........................... 35
• Deleted E00, E01, E08, E10, E12, E13 columns and A8H row from 3 EPROM Bit Explanations table.............................. 35
• Changed values for E00, E08, E09 WQFN EPROM Settings table..................................................................................... 36
2 Copyright © 2012–2014, Texas Instruments Incorporated
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