Datasheet > LM5068MMX-2/NOPB

LM5068MMX-2/NOPB

更新时间： 2024-01-04 22:24:48

品牌	Logo	应用领域
美国国家半导体 - NSC		光电二极管
页数	文件大小	规格书
26页	1176K
描述
IC 2-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8, MSOP-8, Power Management Circuit

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LM5068MMX-2/NOPB 技术参数

是否Rohs认证：	符合	生命周期：	Transferred
包装说明：	TSSOP, TSSOP8,.19	Reach Compliance Code：	compliant
ECCN代码：	EAR99	HTS代码：	8542.39.00.01
风险等级：	5.12	可调阈值：	NO
模拟集成电路 - 其他类型：	POWER SUPPLY SUPPORT CIRCUIT	JESD-30 代码：	S-PDSO-G8
JESD-609代码：	e3	长度：	3 mm
湿度敏感等级：	1	信道数量：	2
功能数量：	1	端子数量：	8
最高工作温度：	105 °C	最低工作温度：	-40 °C
封装主体材料：	PLASTIC/EPOXY	封装代码：	TSSOP
封装等效代码：	TSSOP8,.19	封装形状：	SQUARE
封装形式：	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH	峰值回流温度（摄氏度）：	260
电源：	48 V	认证状态：	Not Qualified
座面最大高度：	1.09 mm	子类别：	Power Management Circuits
最大供电电流 (Isup)：	1.3 mA	最大供电电压 (Vsup)：	90 V
最小供电电压 (Vsup)：	10 V	标称供电电压 (Vsup)：	48 V
表面贴装：	YES	温度等级：	INDUSTRIAL
端子面层：	Matte Tin (Sn)	端子形式：	GULL WING
端子节距：	0.65 mm	端子位置：	DUAL
处于峰值回流温度下的最长时间：	40	宽度：	3 mm
Base Number Matches：	1

LM5068MMX-2/NOPB 数据手册

December 2004

LM5068

Negative Voltage Hot Swap Controller

General Description

The LM5068 hot-swap controller provides intelligent control

of power supply connections during the insertion and re-

moval of circuit cards powered by live system backplanes.

Features

n Safe module insertion and removal from live backplanes

n In-rush current limiting for safe board insertion into live

backplanes

n Fast response to over-current fault conditions with active

current limiting

n -10V to -90V input range

n Programmable under-voltage/over-voltage shutdown

protection with adjustable hysteresis

n Programmable multi-function timer for board insertion

de-bounce delay

n Fault timer avoids nuisance trips caused by short

duration load transients

n Active gate clamping during initial power application

n Available in both latched fault and automatic re-try

versions

n Available with either active HIGH or active LOW power

good flag

The LM5068 provides both in-rush current control and short-

circuit protection functions, and limits power supply tran-

sients in the backplane caused by the insertion of additional

circuit cards. The LM5068 controls the external N-Channel

MOSFET to provide programmable load current limiting and

circuit breaker functions using a single external current

sense resistor. The LM5068 issues a power good (PWRGD)

signal at the conclusion of a successful power-on sequence.

Input over-voltage or under -voltage fault conditions will can-

cel the PWRGD indication.

The LM5068-1 and -2 indicate power-good as an open-drain

active HIGH PWRGD state. The LM5068-3 and -4 indicate

power-good as an open-drain active LOW PWRGD state.

The LM5068-1 and -3 latch off after a fault condition is

detected while the LM5068-2 and -4 continuously re-try at

intervals set by a programmable timer.

Applications

The LM5068 is available in a MSOP-8 package.

n - 48V Power Modules

n Central Office Switching

n Distributed Power Systems

n Electronic Circuit Breaker

n PBX Systems

n Negative Power Supply Control

Typical Application

20078601

Negative Power Supply Control

DS200786

www.national.com

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与LM5068MMX-2/NOPB相关器件

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LM5068MMX-3/NOPB	NSC	IC 2-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8, MSOP-8, Power Management Circuit	获取价格
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