LTC4241

更新时间： 2024-11-21 05:43:59

品牌	Logo	应用领域
凌特 - Linear		控制器 PC
页数	文件大小	规格书
16页	275K
描述
PCI-Bus with 3.3V Auxiliary Hot Swap Controller

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LTC4241 数据手册

LTC4241

PCI-Bus with 3.3V Auxiliary

Hot Swap Controller

FEATURES

DESCRIPTIO

The LTC^®4241 is a Hot Swap controller that allows a board

to be safely inserted and removed from a live PCI-bus slot.

It has a primary controller that controls the four PCI

suppliesandanindependentauxiliarycontrollertocontrol

the 3.3V auxiliary supply. External N-channel transistors

areusedtocontrolthe3.3V,5Vand3.3Vauxiliarysupplies

whileon-chipswitchescontrolthe–12Vand12Vsupplies.

The3.3V, 5Vand3.3Vauxiliarysuppliescanberampedup

at an adjustable rate. Electronic circuit breakers protect all

five supplies against overcurrent faults. The foldback

current limit feature reduces current spikes and power

dissipation when shorts occur. The PWRGD output of the

primary controller indicates when all four PCI supplies are

withintolerance.TheFAULToutputindicatesanovercurrent

condition for any of the five supplies.

■

Allows Safe Board Insertion and Removal from a

Live PCI Slot

■

Controls 3.3V, 5V, –12V, 12V and 3.3V Auxiliary

Supplies

Independent 3.3V Auxiliary Supply Hot Swap^TM

■

Controller

■

Adjustable Foldback Current Limit with Circuit

Breaker

■

Adjustable Supply Voltage Power-Up Rate

■

High Side Drive for External N-Channel FETs

■

–12V and 12V On-Chip Switches

Fault and Power Good Outputs

■

APPLICATIO S

■

PCI-Based Servers

Computer Systems

■

The LTC4241 is available in the 20-pin narrow SSOP

package.

, LTC and LT are registered trademarks of Linear Technology Corporation.

Hot Swap is a trademark of Linear Technology Corporation.

TYPICAL APPLICATIO

GND

0.007Ω

IRF7413

10Ω

0.005Ω

IRF7413

3.3V

7.6A

10Ω

0.07Ω

Si2306DS

3.3V

AUX

500mA

SYSTEM

POWER

SUPPLY

10nF

100Ω

10Ω

0.047µF

AUXIN AUXSENSE AUXGATE 3V 3V

GATE 3V

SENSE

OUT

SENSE

OUT

GND

12V

500mA

12V

EEIN

OUT

–12V

100mA

AUXON

LTC4241

EEOUT

R8 10k

R9 10k

BACKPLANE

PCI

FAULT

TIMER

CONNECTOR

POWER

0.1µF

SYSTEM

CONTROLLER

PWRGD

LOGIC

RESET

4241 F01

Figure 1. Hot Swappable PCI and 3.3V Auxiliary Supplies

sn4241 4241f

12 3 4 5 6 7...16

中文翻译

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与LTC4241相关器件

型号	品牌	获取价格	描述	数据表
LTC4241CGN	Linear	获取价格	PCI-Bus with 3.3V Auxiliary Hot Swap Controller
LTC4241CGN#PBF	Linear	获取价格	LTC4241 - PCI-Bus with 3.3V Auxiliary Hot Swap Controller; Package: SSOP; Pins: 20; Temper
LTC4241CGN#TR	Linear	获取价格	LTC4241 - PCI-Bus with 3.3V Auxiliary Hot Swap Controller; Package: SSOP; Pins: 20; Temper
LTC4241CGN#TRPBF	Linear	获取价格	LTC4241 - PCI-Bus with 3.3V Auxiliary Hot Swap Controller; Package: SSOP; Pins: 20; Temper
LTC4241IGN	Linear	获取价格	PCI-Bus with 3.3V Auxiliary Hot Swap Controller
LTC4241IGN#TRPBF	Linear	获取价格	LTC4241 - PCI-Bus with 3.3V Auxiliary Hot Swap Controller; Package: SSOP; Pins: 20; Temper
LTC4242	Linear	获取价格	Dual Slot Hot Swap Controller for PCI Express
LTC4242	ADI	获取价格	用于PCI Express 的双插槽热插拨控制器
LTC4242CG	Linear	获取价格	Dual Slot Hot Swap Controller for PCI Express
LTC4242CG#PBF	ADI	获取价格	Dual Slot Hot Swap Controller for PCI Express

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