Datasheet > LM25069

LM25069

更新时间： 2024-11-16 11:13:19

品牌	Logo	应用领域
德州仪器 - TI		控制器
页数	文件大小	规格书
31页	1534K
描述
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

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LM25069 数据手册

LM25069

www.ti.com

SNVS607E –FEBRUARY 2011–REVISED MARCH 2013

LM25069 Positive Low Voltage Power Limiting Hot Swap Controller

Check for Samples: LM25069

FEATURES

APPLICATIONS

•

Operating R ange: +2.9V to +17V

•

Server Backplane Systems

In-rush Current Limit for Safe Board Insertion

into Live Power Sources

Base Station Power Distribution Systems

Solid State Circuit Breaker

•

Programmable Maximum Power Dissipation in

the External Pass Device

PACKAGE

•

Adjustable Current Limit

•

VSSOP-10

Circuit Breaker Function for Severe Over-

Current Events

DESCRIPTION

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

operation 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 VSSOP

package.

•

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

Typical Application

OUT

SYS

VIN

SENSE GATE

OUT

UVLO/EN

LM25069

Power

Good

PGD

PWR

OVLO

TIMER

GND

Figure 1. Positive Power Supply Control

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of

Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

All trademarks are the property of their respective owners.

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.

12 3 4 5 6 7...31

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LM25069 替代型号

型号	品牌	替代类型	描述	数据表
LM5067	TI	功能相似	具有功率限制功能的 -9V 至 -80V 热插拔控制器
LM5068	TI	功能相似	LM5068 Negative Voltage Hot Swap Controller
LM25066A	TI	功能相似	System Power Management and Protection IC wit

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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