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参数资料
| 型号： | LTC4306IUFD#TRPBF |
| 厂商： | Linear Technology |
| 文件页数： | 1/20页 |
| 文件大小： | 0K |
| 描述： | IC MUX 4CH 2-WIRE BUS 24-QFN |
| 产品培训模块： | LTC4310 - Hot-Swappable I²C Isolators |
| 标准包装： | 2,500 |
| 应用： | 带放大器的多路复用器 |
| 接口： | SMBus（2 线/I²C） |
| 电源电压： | 2.2 V ~ 5.5 V |
| 封装/外壳： | 24-WFQFN 裸露焊盘 |
| 供应商设备封装： | 24-QFN（5x4） |
| 包装： | 带卷 (TR) |
| 安装类型： | 表面贴装 |
LTC4306
1
4306f
The LTC
4306 is a 4-channel, 2-wire bus multiplexer with
bus buffers to provide capacitive isolation between the
upstream bus and downstream buses. Through software
control, the LTC4306 connects the upstream 2-wire bus to
any desired combination of downstream buses. Each
channel can be pulled up to a supply voltage ranging from
2.2V to 5.5V, independent of the LTC4306 supply voltage.
The downstream channels are also provided with
ALERT1-ALERT4 inputs for fault reporting.
Programmable timeout circuitry disconnects the down-
stream buses if the bus is stuck low. When activated, rise
time accelerators source currents into the 2-wire bus pins
to reduce rise time. Driving the ENABLE pin low restores
all features to their default states. Three address pins
provide 27 distinct addresses.
The LTC4306 is available in 24-lead QFN (4mm
× 5mm)
and SSOP packages.
■ Nested Addressing
■ 5V/3.3V Level Translator
■ Capacitance Buffer/Bus Extender
■ 1:4 2-Wire Multiplexer/Switch
■
Connect SDA and SCL Lines with 2-Wire Bus
Commands
■ Supply Independent Bidirectional Buffer for SDA
and SCL Lines Increases Fan-Out
■ Programmable Disconnect from Stuck Bus
■ Compatible with I2C and SMBus Standards
■
Rise Time Accelerator Circuitry
■ SMBus Compatible ALERT Response Protocol
■ Two General Purpose Inputs-Outputs
■
Prevents SDA and SCL Corruption During Live Board
Insertion and Removal from Backplane
■
±10kV Human Body Model ESD Ruggedness
■
24-Lead QFN (4mm
× 5mm) and SSOP Packages
4-Channel,
2-Wire Bus Multiplexer with
Capacitance Buffering
FEATURES
DESCRIPTIO
U
APPLICATIO S
U
TYPICAL APPLICATIO
U
, LTC and LT are registered trademarks of Linear Technology Corporation.
All other trademarks are the property of their respective owners. Patent pending.
VCC
0.01
F
3.3V
2.5V
5V
10k
LTC4306
ADDRESS = 1000 100
ADDRESS = 1111 000
SCL1
SDA1
ALERT1
SCLIN
SDAIN
ALERT
SCL4
SDA4
ALERT4
ADR2
ADR1
ADR0
GND
SFP
MODULE 1
MICRO-
CONTROLLER
10k
SFP
MODULE 4
10k
4306 TA01a
A Level Shifting and Nested Addressing Application
4306 TA01b
VCC = 3.3V
VCARD1 = 3.3V
VCARD4 = 5V
VBACK = 2.5V
SCL4
2V/DIV
500ns/DIV
SCL1
2V/DIV
SCLIN
2V/DIV
I2C Bus Waveforms
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相关代理商/技术参数 |
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| LTC4307CDD#PBF | 功能描述:IC BUFFER 2-WIRE BUS 8-DFN RoHS:是 类别:集成电路 (IC) >> PMIC - 热交换 系列:- 标准包装:50 系列:- 类型:热交换控制器 应用:-48V 远程电力系统，AdvancedTCA ? 系统，高可用性 内部开关:无 电流限制:可调 电源电压:11.5 V ~ 14.5 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:10-TFSOP，10-MSOP（0.118"，3.00mm 宽） 供应商设备封装:10-MSOP 包装:管件 |
| LTC4307CDD#TRPBF | 功能描述:IC BUFFER 2-WIRE BUS 8-DFN RoHS:是 类别:集成电路 (IC) >> PMIC - 热交换 系列:- 标准包装:50 系列:- 类型:热交换控制器 应用:-48V 远程电力系统，AdvancedTCA ? 系统，高可用性 内部开关:无 电流限制:可调 电源电压:11.5 V ~ 14.5 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:10-TFSOP，10-MSOP（0.118"，3.00mm 宽） 供应商设备封装:10-MSOP 包装:管件 |
| LTC4307CDD-1#PBF | 功能描述:IC BUFFER 2-WIRE BUS 8-DFN RoHS:是 类别:集成电路 (IC) >> PMIC - 热交换 系列:- 标准包装:50 系列:- 类型:热交换控制器 应用:-48V 远程电力系统，AdvancedTCA ? 系统，高可用性 内部开关:无 电流限制:可调 电源电压:11.5 V ~ 14.5 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:10-TFSOP，10-MSOP（0.118"，3.00mm 宽） 供应商设备封装:10-MSOP 包装:管件 |
| LTC4307CDD-1#TRPBF | 功能描述:IC BUFFER 2-WIRE BUS 8-DFN RoHS:是 类别:集成电路 (IC) >> PMIC - 热交换 系列:- 标准包装:50 系列:- 类型:热交换控制器 应用:-48V 远程电力系统，AdvancedTCA ? 系统，高可用性 内部开关:无 电流限制:可调 电源电压:11.5 V ~ 14.5 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:10-TFSOP，10-MSOP（0.118"，3.00mm 宽） 供应商设备封装:10-MSOP 包装:管件 |
| LTC4307CMS8#PBF | 功能描述:IC BUFFER 2-WIRE BUS 8-MSOP RoHS:是 类别:集成电路 (IC) >> PMIC - 热交换 系列:- 标准包装:50 系列:- 类型:热交换控制器 应用:-48V 远程电力系统，AdvancedTCA ? 系统，高可用性 内部开关:无 电流限制:可调 电源电压:11.5 V ~ 14.5 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:10-TFSOP，10-MSOP（0.118"，3.00mm 宽） 供应商设备封装:10-MSOP 包装:管件 |
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