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LTC4300-1IMS8#TR PDF预览

LTC4300-1IMS8#TR

更新时间： 2024-09-24 21:17:35
品牌 Logo 应用领域
凌特 - Linear 光电二极管
页数 文件大小 规格书
18页 726K
描述
LTC4300-1/LTC4300-2 - Hot Swappable 2-Wire Bus Buffers; Package: MSOP; Pins: 8; Temperature Range: -40°C to 85°C

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中文翻译

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LTC4300-1IMS8#TR 技术参数

是否Rohs认证： 不符合生命周期：Transferred
零件包装代码：MSOP包装说明：TSSOP,
针数：8Reach Compliance Code：not_compliant
ECCN代码：EAR99HTS代码：8542.39.00.01
风险等级：5.1可调阈值：NO
模拟集成电路 - 其他类型：POWER SUPPLY SUPPORT CIRCUITJESD-30 代码：S-PDSO-G8
JESD-609代码：e0长度：3 mm
湿度敏感等级：1信道数量：1
功能数量：2端子数量：8
最高工作温度：85 °C最低工作温度：-40 °C
封装主体材料：PLASTIC/EPOXY封装代码：TSSOP
封装形状：SQUARE封装形式：SMALL OUTLINE, THIN PROFILE, SHRINK PITCH
峰值回流温度（摄氏度）：255认证状态：Not Qualified
座面最大高度：1.1 mm最大供电电压 (Vsup)：5.5 V
最小供电电压 (Vsup)：2.7 V标称供电电压 (Vsup)：3.3 V
表面贴装：YES温度等级：INDUSTRIAL
端子面层：Tin/Lead (Sn/Pb)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

LTC4300-1IMS8#TR 数据手册

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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.  
n
Bidirectional Buffer for SDA and SCL Lines  
Increases Fanout  
n
Prevents SDA and SCL Corruption During Live  
Board Insertion and Removal From Backplane  
Isolates Input SDA and SCL Lines From Output  
n
2
2
n
Compatible with I C, I C Fast Mode and SMBus  
Standards (Up to 400kHz Operation)  
n
n
n
n
Low I Chip Disable: <1µA (LTC4300-1)  
CC  
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  
n
n
n
5V to 3.3V Level Translation (LTC4300-2)  
when driven to V . It also includes an open drain READY  
CC  
High Impedance SDA, SCL Pins for V = 0V  
CC  
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.  
n
Hot Board Insertion  
n
Servers  
n
Capacitance Buffer/Bus Extender  
Desktop Computer  
n
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  
V
3.3V  
CC  
C1  
0.01µF  
Input–Output Connection tPLH  
R1  
24k  
R2  
24k  
R3  
R4  
8
24k  
24k  
3
6
2
SCLIN  
SCLOUT  
OUTPUT SIDE  
50pF  
INPUT SIDE  
150pF  
C2*  
C4*  
0.5V/DIV  
7
5
SDAIN  
SDAOUT  
C3*  
C5*  
LTC4300-1  
430012 TA01b  
1
200ns/DIV  
ENABLE  
READY  
GND  
4
*CAPACITORS NOT REQUIRED  
IF BUS IS SUFFICIENTLY LOADED  
430012 TA01a  
430012fb  
1
For more information www.linear.com/LTC4300-1  
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中文翻译

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