Datasheet > LTC4300-2_15

LTC4300-2_15

更新时间： 2024-09-25 01:23:07

品牌	Logo	应用领域
凌特 - Linear		/
页数	文件大小	规格书
18页	742K
描述
Hot Swappable 2-Wire Bus Buffers

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中文翻译

获取价格

数据手册

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LTC4300-2_15 数据手册

LTC4300-1/LTC4300-2

Hot Swappable

2-Wire Bus Buffers

FeaTures

DescripTion

The LTC^®4300 series hot swappable 2-wire bus buffers

allow I/O card insertion into a live backplane without cor-

ruptionofthedataandclockbusses. Whentheconnection

is made, the LTC4300-1/LTC4300-2 provide bidirectional

buffering, keeping the backplane and card capacitances

isolated. Rise time accelerator circuitry* allows the use of

weaker DC pull-up currents while still meeting rise time

requirements. During insertion, the SDA and SCL lines are

precharged to 1V to minimize bus disturbances.

Bidirectional Buffer for SDA and SCL Lines

Increases Fanout

Prevents SDA and SCL Corruption During Live

Board Insertion and Removal From Backplane

Isolates Input SDA and SCL Lines From Output

Compatible with I C, I C Fast Mode and SMBus

Standards (Up to 400kHz Operation)

Low I Chip Disable: <1µA (LTC4300-1)

READY Open-Drain Output (LTC4300-1)

1V Precharge on All SDA and SCL Lines

Supports Clock Stretching, Arbitration and

Synchronization

The LTC4300-1 incorporates a CMOS threshold digital

ENABLE input pin, which forces the part into a low current

mode when driven to ground and sets normal operation

5V to 3.3V Level Translation (LTC4300-2)

when driven to V . It also includes an open drain READY

High Impedance SDA, SCL Pins for V = 0V

output pin, which indicates that the backplane and card

Small MSOP 8-Lead Package

sides are connected together. The LTC4300-2 replaces

the ENABLE pin with a dedicated supply voltage pin, V

CC2

applicaTions

for the card side, providing level shifting between 3.3V

and 5V systems. Both the backplane and card may be

powered with supply voltages ranging from 2.7V to 5.5V,

with no constraints on which supply voltage is higher.

The LTC4300-2 also replaces the READY pin with a digital

CMOS input pin, ACC, which enables and disables the rise

time accelerator currents.

Hot Board Insertion

Servers

Capacitance Buffer/Bus Extender

Desktop Computer

L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks and

Hot Swap and ThinSOT are trademarks of Linear Technology Corporation. All other trademarks

are the property of their respective owners. *Protected by U.S. Patents, including 6650174.

The LTC4300 is available in a small 8-lead MSOP package.

Typical applicaTion

3.3V

0.01µF

Input–Output Connection t_PLH

24k

SCLIN

SCLOUT

OUTPUT SIDE

50pF

INPUT SIDE

150pF

C2*

C4*

0.5V/DIV

SDAIN

SDAOUT

C3*

C5*

LTC4300-1

430012 TA01b

200ns/DIV

ENABLE

READY

GND

*CAPACITORS NOT REQUIRED

IF BUS IS SUFFICIENTLY LOADED

430012 TA01a

430012fb

For more information www.linear.com/LTC4300-1

12 3 4 5 6 7...18

中文翻译

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与LTC4300-2_15相关器件

型号	品牌	获取价格	描述	数据表
LTC4300-2CMS8	Linear	获取价格	Hot Swappable 2-Wire Bus Buffers
LTC4300-2CMS8#PBF	Linear	获取价格	暂无描述
LTC4300-2CMS8#TRPBF	Linear	获取价格	LTC4300-1/LTC4300-2 - Hot Swappable 2-Wire Bus Buffers; Package: MSOP; Pins: 8; Temperatur
LTC4300-2IMS8	Linear	获取价格	Hot Swappable 2-Wire Bus Buffers
LTC4300-2IMS8#PBF	Linear	获取价格	暂无描述
LTC4300-2IMS8#TR	Linear	获取价格	暂无描述
LTC4300A-1	Linear	获取价格	Hot Swappable 2-Wire Bus Buffers
LTC4300A-1	ADI	获取价格	可热插拔的两线式总线缓冲器
LTC4300A-1_15	Linear	获取价格	Hot Swappable 2-Wire Bus Buffers
LTC4300A-1CMS8	Linear	获取价格	Hot Swappable 2-Wire Bus Buffers

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