Datasheet > LM25069

LM25069

更新时间： 2024-11-15 05:42:07

品牌	Logo	应用领域
美国国家半导体 - NSC		控制器
页数	文件大小	规格书
24页	597K
描述
Positive Low Voltage Power Limiting Hot Swap Controller

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中文翻译

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LM25069 数据手册

July 15, 2009

LM25069

Positive Low Voltage Power Limiting Hot Swap Controller

General Description

Features

The LM25069 positive hot swap controller provides intelligent

control of the power supply voltage to the load during insertion

and removal of circuit cards from a live system backplane or

other "hot" power sources. The LM25069 provides in-rush

current control to limit system voltage droop and transients.

The current limit and power dissipation in the external series

pass N-Channel MOSFET are programmable, ensuring op-

eration within the Safe Operating Area (SOA). The POWER

GOOD output indicates when the output voltage is within 1.3V

of the input voltage. The input under-voltage and over-voltage

lockout levels and hysteresis are programmable, as well as

the initial insertion delay time and fault detection time. The

LM25069-1 latches off after a fault detection, while the

LM25069-2 automatically restarts at a fixed duty cycle. The

LM25069 is available in a 10 pin MSOP package.

Operating range: +2.9V to +17V

■

In-rush current limit for safe board insertion into live power

sources

Programmable maximum power dissipation in the external

pass device

■

Adjustable current limit

■

Circuit breaker function for severe over-current events

Internal high side charge pump and gate driver for external

N-channel MOSFET

Adjustable under-voltage lockout (UVLO) and hysteresis

■

Adjustable over-voltage lockout (OVLO) and hysteresis

Initial insertion timer allows ringing and transients to

subside after system connection

Programmable fault timer avoids nuisance trips

■

Active high open drain POWER GOOD output

Available in latched fault and automatic restart versions

Applications

Server Backplane Systems

■

Base Station Power Distribution Systems

Solid State Circuit Breaker

Package

MSOP-10

■

Typical Application

30086701

Positive Power Supply Control

300867

www.national.com

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中文翻译

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与LM25069相关器件

型号	品牌	获取价格	描述	数据表
LM25069PMM-1	NSC	获取价格	Positive Low Voltage Power Limiting Hot Swap Controller
LM25069PMM-1/NOPB	TI	获取价格	具有功率限制和电源正常指示功能的 2.9V 至 17V 热插拔控制器 \| DGS \| 10
LM25069PMM-2	NSC	获取价格	Positive Low Voltage Power Limiting Hot Swap Controller
LM25069PMM-2/NOPB	TI	获取价格	具有功率限制和电源正常指示功能的 2.9V 至 17V 热插拔控制器 \| DGS \| 10
LM25069PMME-1	NSC	获取价格	Positive Low Voltage Power Limiting Hot Swap Controller
LM25069PMME-1/NOPB	TI	获取价格	具有功率限制和电源正常指示功能的 2.9V 至 17V 热插拔控制器 \| DGS \| 10
LM25069PMME-2	NSC	获取价格	Positive Low Voltage Power Limiting Hot Swap Controller
LM25069PMME-2/NOPB	TI	获取价格	具有功率限制和电源正常指示功能的 2.9V 至 17V 热插拔控制器 \| DGS \| 10
LM25069PMMX-1	NSC	获取价格	Positive Low Voltage Power Limiting Hot Swap Controller
LM25069PMMX-1/NOPB	TI	获取价格	具有功率限制和电源正常指示功能的 2.9V 至 17V 热插拔控制器 \| DGS \| 10

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