Datasheet > 22-05-3041

22-05-3041

更新时间： 2024-02-16 04:11:42

品牌	Logo	应用领域
德州仪器 - TI		转换器连接器 PC
页数	文件大小	规格书
9页	206K
描述
High-Integration, High-Efficiency Power Solution Using DC/DC Converters With DVFS

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22-05-3041 技术参数

是否无铅：	不含铅	是否Rohs认证：	符合
生命周期：	Active	Reach Compliance Code：	compliant
Factory Lead Time：	8 weeks	风险等级：	1.53
Samacsys Confidence：	4	Samacsys Status：	Released
Schematic Symbol：	https://componentsearchengine.com/symbol.php?partID=256830	PCB Footprint：	https://componentsearchengine.com/footprint.php?partID=256830
Samacsys PartID：	256830	Samacsys Image：	https://componentsearchengine.com/Images/9/22-05-3041.jpg
Samacsys Thumbnail Image：	https://componentsearchengine.com/Thumbnails/1/22-05-3041.jpg	Samacsys Pin Count：	4
Samacsys Part Category：	Connector	Samacsys Package Category：	Other
Samacsys Footprint Name：	22-05-3041	Samacsys Released Date：	2017-06-25 23:13:41
Is Samacsys：	N	主体宽度：	0.25 inch
主体深度：	0.442 inch	主体长度：	0.4 inch
主体/外壳类型：	RECEPTACLE	连接器类型：	BOARD CONNECTOR
联系完成配合：	NOT SPECIFIED	联系完成终止：	Tin (Sn) - with Nickel (Ni) barrier
触点性别：	MALE	触点材料：	BRASS
触点模式：	RECTANGULAR	触点样式：	SQ PIN-SKT
DIN 符合性：	NO	滤波功能：	NO
IEC 符合性：	NO	绝缘体颜色：	WHITE
绝缘体材料：	NYLON	JESD-609代码：	e3
MIL 符合性：	NO	插接触点节距：	0.1 inch
插接信息：	MULTIPLE MATING PARTS AVAILABLE	混合触点：	NO
安装选项1：	LOCKING	安装方式：	RIGHT ANGLE
安装类型：	BOARD	连接器数：	ONE
PCB行数：	1	装载的行数：	1
选件：	GENERAL PURPOSE	PCB接触模式：	RECTANGULAR
参考标准：	UL	可靠性：	COMMERCIAL
子类别：	Headers and Edge Type Connectors	端子长度：	0.141 inch
端子节距：	2.54 mm	端接类型：	SOLDER
触点总数：	4	UL 易燃性代码：	94V-0
Base Number Matches：	1

22-05-3041 数据手册

Application Report

SLVA340A–June 2009–Revised May 2010

High-Integration, High-Efficiency Power Solution Using

DC/DC Converters With DVFS

Ambreesh Tripathi .......................................................................... PMP - DC/DC Low-Power Converters

ABSTRACT

This reference design helps those desiring to design-in the TMS320C6742, TMS320C6746,

TMS320C6748 and OMAP-L138. This design, employing sequenced power supplies, describes a system

with an input voltage of 5V, and uses a high-efficiency DC/DC Converter with integrated FETs and DVFS

for a small, simple system.

Sequenced power supply architectures are becoming commonplace in high-performance microprocessor

and digital signal processor (DSP) systems. To save power and increase processing speeds, processor

cores have small-geometry cells that require lower supply voltages than the system-bus voltages. Power

management in these systems requires special attention. This application note addresses these topics

and suggests solutions for output-voltage sequencing.

Contents

Introduction .................................................................................................................. 1

Power Requirements ....................................................................................................... 2

Features ...................................................................................................................... 3

List of Material ............................................................................................................... 5

List of Figures

PMP4977 Reference Design Schematic.................................................................................

Optional circuit for DVDD_A, DVDD_B and DVDD_C .................................................................

Shows Sequencing in Start-Up Waveform ..............................................................................

DCDC1: Efficiency vs Output Current....................................................................................

DCDC2: Efficiency vs Output Current....................................................................................

DCDC3: Efficiency vs Output Current....................................................................................

List of Tables

PMP4977 List of Material ..................................................................................................

Introduction

In dual-voltage architectures, coordinated management of power supplies is necessary to avoid potential

problems and ensure reliable performance. Power supply designers must consider the timing and voltage

differences between core and I/O voltage supplies during power-up and power-down operations.

Sequencing refers to the order, timing and differential in which the two voltage rails are powered up and

down. A system designed without proper sequencing may be at risk for two types of failures. The first of

these represents a threat to the long term reliability of the dual-voltage device, while the second is more

immediate, with the possibility of damaging interface circuits in the processor or system devices such as

memory, logic or data-converter ICs.

I²C is a trademark of Philips Electronics N.V. Corporation.

SLVA340A–June 2009–Revised May 2010

High-Integration, High-Efficiency Power Solution Using DC/DC Converters With

DVFS

12 3 4 5 6 7...9

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22-05-3051	MOLEX	2.54mm (.100) Pitch KK® Solid Header, Right A	获取价格
22-05-3061	MOLEX	2.54mm (.100) Pitch KK® Solid Header, Right A	获取价格
22-05-3071	MOLEX	2.54mm (.100) Pitch KK® Solid Header, Right A	获取价格
22-05-3081	MOLEX	2.54mm (.100) Pitch KK® Solid Header, Right A	获取价格
22-05-3091	MOLEX	2.54mm (.100) Pitch KK® Solid Header, Right A	获取价格
22-05-3101	MOLEX	2.54mm (.100) Pitch KK® Solid Header, Right A	获取价格

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