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參數(shù)資料
| 型號(hào)： | LTC4300A-2 |
| 廠商： | Linear Technology Corporation |
| 英文描述： | 14/PG/CL/N FLNG |
| 中文描述： | 熱插拔2線總線緩沖器 |
| 文件頁數(shù)： | 1/16頁 |
| 文件大?。?/td> | 291K |
| 代理商： | LTC4300A-2 |
LTC4300A-1/LTC4300A-2
Hot Swappable
2-Wire Bus Buffers
DESCRIPTIO
U
1
sn4300a12 4300a12fs
The LTC
4300A series hot swappable 2-wire bus buffers
allow I/O card insertion into a live backplane without
corruption of the data and clock busses. When the con-
nection is made, the LTC4300A-1/LTC4300A-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.
The LTC4300A-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 when
driven to V
CC
. It also includes an open drain READY output
pin, which indicates that the backplane and card sides are
connected together. The LTC4300A-2 replaces the ENABLE
pin with a dedicated supply voltage pin, V
CC2
, 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 contraints on
which supply voltage is higher. The LTC4300A-2 also re-
places the READY pin with a digital CMOS input pin, ACC,
which enables and disables the rise-time accelerator currents.
The LTC4300A is available in a small 8-pin MSOP package.
I
Hot Board Insertion
I
Servers
I
Capacitance Buffer/Bus Extender
I
Desktop Computer
, LTC and LT are registered trademarks of Linear Technology Corporation.
I
2
C is a trademark of Philips Electronics N. V.
*U.S. Patent No. 6,650,174
I
Bidirectional Buffer for SDA and SCL Lines
Increases Fanout
I
Prevents SDA and SCL Corruption During Live
Board Insertion and Removal from Backplane
I
Isolates Input SDA and SCL Lines from Output
I
Compatible with I
2
C
TM
, I
2
C Fast Mode and SMBus
Standards (Up to 400kHz Operation)
I
Small MSOP 8-Pin Package
I
Low I
CC
Chip Disable: <1
μ
A (LTC4300A-1)
I
READY Open Drain Output (LTC4300A-1)
I
1V Precharge on all SDA and SCL Lines
I
Supports Clock Stretching, Arbitration and
Synchronization
I
5V to 3.3V Level Translation (LTC4300A-2)
I
High Impedance SDA, SCL Pins for V
CC
= 0V
R1
10k
V
CC
3.3V
R2
10k
ENABLE
SCLIN
SCLOUT
SDAIN
SDAOUT
1
5
4
6
7
3
2
8
GND
LTC4300A-1
READY
C1
0.01
μ
F
4300A-1/2
TA01
R3
10k
R4
10k
APPLICATIU
FEATURES
TYPICAL APPLICATIO
U
Input–Output Connection t
PLH
OUTPUT
SIDE
50pF
INPUT
SIDE
150pF
4300A TA02
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LTC4300A-2CMS8 | Hot Swappable 2-Wire Bus Buffers |
| LTC4300A-2IMS8 | Hot Swappable 2-Wire Bus Buffers |
| LTC4300A-3 | Level Shifting Hot Swappable 2-Wire Bus Buffer with Enable |
| LTC4300-1 | Hot Swappable 2-Wire Bus Buffers |
| LTC4300-1CMS8 | Hot Swappable 2-Wire Bus Buffers |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LTC4300A2CMS8 | 制造商:Linear Technology 功能描述: |
| LTC4300A-2CMS8 | 功能描述:IC BUFFER BUS 2WR HOTSWAP 8-MSOP RoHS:否 類別:集成電路 (IC) >> PMIC - 熱交換 系列:- 標(biāo)準(zhǔn)包裝:50 系列:- 類型:熱交換控制器 應(yīng)用:-48V 遠(yuǎn)程電力系統(tǒng)，AdvancedTCA ? 系統(tǒng)，高可用性 內(nèi)部開關(guān):無 電流限制:可調(diào) 電源電壓:11.5 V ~ 14.5 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:10-TFSOP，10-MSOP（0.118"，3.00mm 寬） 供應(yīng)商設(shè)備封裝:10-MSOP 包裝:管件 |
| LTC4300A-2CMS8#PBF | 功能描述:IC BUFFER BUS 2WR HOTSWAP 8-MSOP RoHS:是 類別:集成電路 (IC) >> PMIC - 熱交換 系列:- 標(biāo)準(zhǔn)包裝:50 系列:- 類型:熱交換控制器 應(yīng)用:-48V 遠(yuǎn)程電力系統(tǒng)，AdvancedTCA ? 系統(tǒng)，高可用性 內(nèi)部開關(guān):無 電流限制:可調(diào) 電源電壓:11.5 V ~ 14.5 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:10-TFSOP，10-MSOP（0.118"，3.00mm 寬） 供應(yīng)商設(shè)備封裝:10-MSOP 包裝:管件 |
| LTC4300A-2CMS8#PBF | 制造商:Linear Technology 功能描述:HOT SWAP CONTROLLER, 2.7-5.5V, MSOP-8 |
| LTC4300A-2CMS8#TR | 功能描述:IC BUFFER BUS 2WR HOTSWAP 8-MSOP RoHS:否 類別:集成電路 (IC) >> PMIC - 熱交換 系列:- 標(biāo)準(zhǔn)包裝:50 系列:- 類型:熱交換控制器 應(yīng)用:-48V 遠(yuǎn)程電力系統(tǒng)，AdvancedTCA ? 系統(tǒng)，高可用性 內(nèi)部開關(guān):無 電流限制:可調(diào) 電源電壓:11.5 V ~ 14.5 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:10-TFSOP，10-MSOP（0.118"，3.00mm 寬） 供應(yīng)商設(shè)備封裝:10-MSOP 包裝:管件 |
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