Datasheet > 电源电路 > 电源管理电路> LM3543M-L/NOPB

LM3543M-L/NOPB

更新时间： 2024-09-29 13:09:23

品牌	Logo	应用领域
美国国家半导体 - NSC		开关
页数	文件大小	规格书
12页	318K
描述
IC,POWER SUPPLY SWITCHING CIRCUIT,CMOS,SOP,16PIN,PLASTIC

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技术参数
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LM3543M-L/NOPB 技术参数

是否Rohs认证：	符合	生命周期：	Obsolete
Reach Compliance Code：	compliant	风险等级：	5.84
Is Samacsys：	N	JESD-30 代码：	R-PDSO-G16
JESD-609代码：	e3	湿度敏感等级：	1
端子数量：	16	封装主体材料：	PLASTIC/EPOXY
封装代码：	SOP	封装等效代码：	SOP16,.25
封装形状：	RECTANGULAR	封装形式：	SMALL OUTLINE
电源：	3/5 V	认证状态：	Not Qualified
子类别：	Power Management Circuits	最大供电电流 (Isup)：	0.8 mA
表面贴装：	YES	技术：	CMOS
端子面层：	Matte Tin (Sn)	端子形式：	GULL WING
端子节距：	1.27 mm	端子位置：	DUAL
Base Number Matches：	1

LM3543M-L/NOPB 数据手册

March 2001

LM3543

Triple Port USB Power Distribution Switch and

Over-Current Protection

General Description

Features

n 90mΩ (typ.) High-Side MOSFET Switch

n 500mA Continuous Current per Port

The LM3543 is a triple high-side power switch that is an

excellent choice for use in Root, Self-Powered and

Bus-Powered USB (Universal Serial Bus) Hubs. Indepen-

dent port enables, flag signals to alert USB controllers of

error conditions, controlled start-up in hot-plug events, and

short circuit protection all satisfy USB requirements.

n 7 ms Fault Flag Delay Filters Hot-Plug Events

n Industry Standard Pin Order

n Short Circuit Protection with Power-Saving Current

Foldback

The LM3543 accepts input voltages between 2.7V and 5.5V.

The Enable logic inputs, available in active-high and

active-low versions, can be powered off any voltage in the

2.7V to 5.5V range. The LM3543 limits the continuous

current through a single port to 1.25A (max.) when it is

shorted to ground.

n Thermal Shutdown Protection

n Undervoltage Lockout

n Recognized by UL and Nemko

n Input Voltage Range: 2.7V to 5.5V

n 5 µA Maximum Standby Supply Current

n 16-Pin SOIC Package

The low on-state resistance of the LM3543 switches ensures

the LM3543 will satisfy USB voltage drop requirements,

even when current through a switch reaches 500 mA. Thus,

n Ambient Temperature Range: −40˚C to 85˚C

High-Powered USB Functions, Low-Powered USB Func- Applications

tions, and Bus-Powered USB Hubs can all be powered off a

Root or Self-Powered USB Hub containing the LM3543.

n USB Root, Self-Powered, and Bus-Powered Hubs

n USB Devices such as Monitors and Printers

n General Purpose High Side Switch Applications

Added features of the LM3543 include current foldback to

reduce power consumption in current overload conditions,

thermal shutdown to prevent device failure caused by

high-current overheating, and undervoltage lockout to keep

switches from operating if the input voltage is below

acceptable levels.

10125832

10125833

Functional Diagram

10125801

DS101258

www.national.com

12 3 4 5 6 7...12

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与LM3543M-L/NOPB相关器件

型号	品牌	获取价格	描述	数据表
LM3543MX-H	NSC	获取价格	Triple Port USB Power Distribution Switch and Over-Current Protection
LM3543MX-H/NOPB	TI	获取价格	3-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO16, SOIC-16
LM3543MX-L	NSC	获取价格	Triple Port USB Power Distribution Switch and Over-Current Protection
LM3544	NSC	获取价格	Quad Port USB Power Distribution Switch and Over-Current Protection
LM3544	TI	获取价格	4 通道、0.5A 负载、2.7-5.5V、90mΩ USB 电源开关
LM3544M-H	NSC	获取价格	Quad Port USB Power Distribution Switch and Over-Current Protection
LM3544M-H/NOPB	TI	获取价格	2-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO16, LEAD FREE, SOIC-16
LM3544M-L	NSC	获取价格	Quad Port USB Power Distribution Switch and Over-Current Protection
LM3544M-L	TI	获取价格	4 通道、0.5A 负载、2.7-5.5V、90mΩ USB 电源开关 \| D \| 16
LM3544M-L/NOPB	TI	获取价格	4 通道、0.5A 负载、2.7-5.5V、90mΩ USB 电源开关 \| D \| 16

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