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参数资料
| 型号： | ADM1275-1ACPZ |
| 厂商： | Analog Devices Inc |
| 文件页数： | 29/48页 |
| 文件大小： | 0K |
| 描述： | IC HOT SWAP CTRL PMBUS 20LFCSP |
| 标准包装： | 1 |
| 类型： | 热交换控制器 |
| 应用： | 通用 |
| 内部开关： | 无 |
| 电流限制： | 可调 |
| 电源电压： | 2.95 V ~ 20 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 20-WQFN 裸露焊盘，CSP |
| 供应商设备封装： | 20-LFCSP-WQ（5x5） |
| 包装： | 托盘 |
| 配用： | EVAL-ADM1275EBZ-ND - BOARD EVALUATION FOR ADM1275 |
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Data Sheet
ADM1275
S
SLAVE ADDRESS
W
A
COMMAND CODE
A Sr
SLAVE ADDRESS
R
A
BYTE COUNT = N
A
DATA BYTE 1
A
DATA BYTE 2
A
DATA BYTE N
A
P
S
SLAVE ADDRESS
DATA BYTE 1
A
W
A
COMMAND CODE
DATA BYTE 2
A
A Sr
SLAVE ADDRESS
DATA BYTE N
A
R
A
BYTE COUNT = N
A
PEC
P
A
MASTER TO SLAVE
SLAVE TO MASTER
Figure 64. Block Read and Block Read with PEC
ONE OR MORE DATA BYTES
S
DEVICE 1 ADDRESS
W
A
COMMAND CODE 1
A
LOW DATA BYTE
A
HIGH DATA BYTE
A
ONE OR MORE DATA BYTES
Sr
DEVICE 2 ADDRESS
W
A
COMMAND CODE 2
A
LOW DATA BYTE
A
HIGH DATA BYTE
A
ONE OR MORE DATA BYTES
Sr
DEVICE N ADDRESS
W
A
COMMAND CODE N
A
LOW DATA BYTE
A
HIGH DATA BYTE
A
P
MASTER TO SLAVE
SLAVE TO MASTER
ONE OR MORE DATA BYTES
S
DEVICE 1 ADDRESS
W
A
COMMAND CODE 1
A
LOW DATA BYTE
A
HIGH DATA BYTE
A
PEC 1
A
ONE OR MORE DATA BYTES
Sr
DEVICE 2 ADDRESS
W
A
COMMAND CODE 2
A
LOW DATA BYTE
A
HIGH DATA BYTE
A
PEC 2
A
ONE OR MORE DATA BYTES
Sr
DEVICE N ADDRESS
W
A
COMMAND CODE N
A
LOW DATA BYTE
A
HIGH DATA BYTE
A
PEC N
A
P
MASTER TO SLAVE
SLAVE TO MASTER
Figure 65. Group Command and Group Command with PEC
GROUP COMMANDS
The PMBus standard defines what are known as group
commands. Group commands are single bus transactions that
send commands or data to more than one device at the same
time. Each device is addressed separately, using its own address;
there is no special group command address. A group command
transaction can contain only write commands that send data to
a device. It is not possible to use a group command to read data
from devices.
From an I 2 C protocol point of view, a normal write command
consists of the following:
? I 2 C start condition
? Slave address bits and a write bit (followed by ACK from
the slave device)
? One or more data bytes (each of which is followed by ACK
from the slave device)
? I 2 C stop condition to end the transaction
A group command differs from a nongroup command in that
after the data is written to one slave device, a repeated start
condition is put on the bus followed by the address of the next
slave device and data. This continues until all the devices have
been written to, at which point the stop condition is put on the
bus by the master device.
The format of a group command and a group command with
Each device that is written to as part of the group command
does not immediately execute the command written. The device
must wait until the stop condition appears on the bus. At that
point, all devices execute their commands at the same time.
Using a group command, it is possible, for example, to turn
multiple PMBus devices on or off at the same time. In the case
of the ADM1275 , it is also possible to issue a power monitor
command that initiates a conversion, causing multiple ADM1275
devices to sample together at the same time. This is analogous
to connecting the GPO1/ALERT1/CONV pins together and
configuring the pin in the convert (CONV) mode to drive the
power monitor sampling.
Rev. D | Page 29 of 48
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| ADM1275-1ACPZ-R7 | 功能描述:IC HOT SWAP CTRL PMBUS 20LFCSP 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) |
| ADM1275-1ARQZ | 功能描述:IC HOT SWAP CTRL PMBUS 20QSOP 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 |
| ADM1275-1ARQZ-R7 | 功能描述:IC HOT SWAP CTRL PMBUS 20QSOP 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) |
| ADM1275-2ARQZ | 功能描述:IC HOT SWAP CTRL PMBUS 16QSOP 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 |
| ADM1275-2ARQZ-R7 | 功能描述:IC HOT SWAP CTRL PMBUS 16QSOP 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) |
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