- 您现在的位置：买卖IC网 > PDF目录44997 > LTC4280IUFD (LINEAR TECHNOLOGY CORP) 1-CHANNEL POWER SUPPLY SUPPORT CKT, PQCC24 PDF资料下载
参数资料
| 型号： | LTC4280IUFD |
| 厂商： | LINEAR TECHNOLOGY CORP |
| 元件分类： | 电源管理 |
| 英文描述： | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PQCC24 |
| 封装： | 4 X 5 MM, PLASTIC, MO-220, QFN-24 |
| 文件页数： | 13/28页 |
| 文件大小： | 286K |
| 代理商： | LTC4280IUFD |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页当前第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页
LTC4280
20
4280f
APPLICATIONS INFORMATION
SCL
SDA
START
CONDITION
STOP
CONDITION
ADDRESS
R/W
ACK
DATA
ACK
DATA
ACK
1 - 7
8
9
4280 F06
a6 - a0
b7 - b0
1 - 7
8
9
1 - 7
8
9
P
S
Figure 6. Data Transfer Over I2C or SMBus
Digital Interface
The LTC4280 communicates with a bus master using a
2-wire interface compatible with I2C Bus and SMBus, an
I2C extension for low power devices.
The LTC4280 is a read-write slave device and supports
SMBus bus Read Byte, Write Byte, Read Word and Write
Word commands. The second word in a Read Word
command is identical to the rst word. The second word
in a Write Word command is ignored. Data formats for
these commands are shown in Figures 6 to 11.
START and STOP Conditions
When the bus is idle, both SCL and SDA are high. A bus
master signals the beginning of a transmission with a start
condition by transitioning SDA from high to low while SCL
is high, as shown in Figure 6. When the master has nished
communicating with the slave, it issues a STOP condition
by transitioning SDA from low to high while SCL is high.
The bus is then free for another transmission.
I2C Device Addressing
Twenty-seven distinct bus addresses are available using
three 3-state address pins, ADR0-ADR2. Table 1 shows
the correspondence between pin states and addresses.
Note that address bits B7 and B6 are internally congured
to 10. In addition, the LTC4280 responds to two special
addresses. Address (1011 111) is a mass write address
that writes to all LTC4280s, regardless of their individual
address settings. Mass write can be disabled by setting
register A4 to zero. Address (0001 100) is the SMBus Alert
Response Address. If the LTC4280 is pulling low on the
ALERT pin, it acknowledges this address by broadcasting
its address and releasing the ALERT pin.
Acknowledge
The acknowledge signal is used in handshaking between
transmitter and receiver to indicate that the last byte of
data was received. The transmitter always releases the
SDA line during the acknowledge clock pulse. When the
slave is the receiver, it pulls down the SDA line so that it
相关PDF资料 |
PDF描述 |
|---|---|
| LTC4312IDE#TRPBF | 2-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO14 |
| LTC4312CDE#PBF | 2-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO14 |
| LTC4312IMS#TRPBF | 2-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO16 |
| LTC4352CMS#PBF | 1-CHANNEL POWER SUPPLY MANAGEMENT CKT, PDSO12 |
| LTC4352CDD#TRPBF | 1-CHANNEL POWER SUPPLY MANAGEMENT CKT, PDSO12 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| LTC4280IUFD#PBF | 功能描述:IC HOT SWAP CONTROLLER 24-QFN RoHS:是 类别:集成电路 (IC) >> PMIC - 热交换 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:119 系列:- 类型:热交换控制器 应用:通用型，PCI Express? 内部开关:无 电流限制:- 电源电压:3.3V，12V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:80-TQFP 供应商设备封装:80-TQFP（12x12） 包装:托盘 产品目录页面:1423 (CN2011-ZH PDF) |
| LTC4280IUFD#TRPBF | 功能描述:IC CTLR HOT SWAP I2C MON 24QFN RoHS:是 类别:集成电路 (IC) >> PMIC - 热交换 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:119 系列:- 类型:热交换控制器 应用:通用型，PCI Express? 内部开关:无 电流限制:- 电源电压:3.3V，12V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:80-TQFP 供应商设备封装:80-TQFP（12x12） 包装:托盘 产品目录页面:1423 (CN2011-ZH PDF) |
| LTC4280IUFD-PBF | 制造商:LINER 制造商全称:Linear Technology 功能描述:Hot Swap Controller with I2C Compatible Monitoring |
| LTC4280IUFD-TR | 制造商:LINER 制造商全称:Linear Technology 功能描述:Hot Swap Controller with I2C Compatible Monitoring |
| LTC4280IUFD-TRPBF | 制造商:LINER 制造商全称:Linear Technology 功能描述:Hot Swap Controller with I2C Compatible Monitoring |
发布紧急采购，3分钟左右您将得到回复。