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參數資料
型號: ADM1041A
廠商: Analog Devices, Inc.
英文描述: Secondary-Side Controller with Current Share and Housekeeping
中文描述: 二次側電流控制器共享和管家
文件頁數: 35/56頁
文件大小: 991K
代理商: ADM1041A
ADM1041A
When performing a block write to EEPROM, the page that
contains the location to be written should not be write-
protected (Register 03h) prior to sending the above SMBus
packet. Block writes are limited to within a 32-byte page
boundary and cannot cross into the next page.
Rev. 0 | Page 35 of 56
SMBus READ OPERATIONS
The ADM1041A uses the following SMBus read protocols.
Receive Byte
In this operation, the master device receives a single byte from a
slave device, as follows:
1.
2.
The master device asserts a start condition on SDA.
The master sends the 7-bit slave address followed by the
read bit (high).
The addressed slave device asserts ACK on SDA.
The master receives a data byte.
The master asserts NO ACK on SDA.
The master asserts a stop condition on SDA and the
transaction ends.
3.
4.
5.
6.
In the ADM1041A, the receive byte protocol is used to read a
single byte of data from a RAM or EEPROM location whose
address has been set previously by a send byte or write byte/
word operation. This is illustrated in Figure 35.
SLAVE
ADDRESS
S
DATA
R A
A
5
P
4
6
2
1
3
0
Figure 35. Single-Byte Read from EEPROM or RAM
Block Read
In this operation, the master device reads a block of data from a
slave device. The start address for a block read must previously
have been set. In the case of the ADM1041A, this is done by a
send byte operation to set a RAM address or by a write
byte/word operation to set an EEPROM address. The block read
operation itself consists of a send byte operation that sends a
block read command to the slave, immediately followed by a
repeat start, and a read operation that reads out multiple data
bytes, as follows:
1.
2.
The master device asserts a start condition on SDA.
The master sends the 7-bit slave address followed by the
write bit (low).
The addressed slave device asserts ACK on SDA.
The master sends a command code that tells the slave
device to expect a block read. The ADM1041A command
code for a block read is A1h (10100001).
The slave asserts ACK on SDA.
The master asserts a repeat start condition on SDA.
The master sends the 7-bit slave address followed by the
read bit (high).
The slave asserts ACK on SDA.
The master receives a byte count data byte that tells it how
many data bytes are to be received. The SMBus
specification allows a maximum of 32 data bytes to be
received in a block read.
10.
The master asserts ACK on SDA.
11.
The master receives N data bytes.
12.
The master asserts ACK on SDA after each data byte.
13.
The slave does not acknowledge after the Nth data byte.
14.
The master asserts a stop condition on SDA to end the
transaction.
3.
4.
5.
6.
7.
8.
9.
SLAVE
ADDRESS
S
BYTE
COUNT
DATA 1
COMMAND A1h
(BLOCK READ)
W A
P
A
A
10
A DATA N
11
14
12
2
SLAVE
ADDRESS
7
1
S
6
9
4
3
5
R A
8
0
A
13
Figure 36. Block Read from EEPROM or RAM
相關PDF資料
PDF描述
ADM1041AARQZ Secondary-Side Controller with Current Share and Housekeeping
ADM1041AARQZ-REEL Secondary-Side Controller with Current Share and Housekeeping
ADM1041AARQZ-REEL7 Secondary-Side Controller with Current Share and Housekeeping
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相關代理商/技術參數
參數描述
ADM1041AARQZ 功能描述:IC SECONDARY SIDE CTRLR 24QSOP RoHS:是 類別:集成電路 (IC) >> PMIC - 電源控制器,監視器 系列:- 產品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:2,500 系列:- 應用:多相控制器 輸入電壓:- 電源電壓:9 V ~ 14 V 電流 - 電源:- 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:40-WFQFN 裸露焊盤 供應商設備封裝:40-TQFN-EP(5x5) 包裝:帶卷 (TR)
ADM1041AARQZ-REEL 功能描述:IC SECONDARY SIDE CTRLR 24QSOP RoHS:是 類別:集成電路 (IC) >> PMIC - 電源控制器,監視器 系列:- 產品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:2,500 系列:- 應用:多相控制器 輸入電壓:- 電源電壓:9 V ~ 14 V 電流 - 電源:- 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:40-WFQFN 裸露焊盤 供應商設備封裝:40-TQFN-EP(5x5) 包裝:帶卷 (TR)
ADM1041AARQZ-REEL7 功能描述:IC SECONDARY SIDE CTRLR 24QSOP RoHS:是 類別:集成電路 (IC) >> PMIC - 電源控制器,監視器 系列:- 產品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:2,500 系列:- 應用:多相控制器 輸入電壓:- 電源電壓:9 V ~ 14 V 電流 - 電源:- 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:40-WFQFN 裸露焊盤 供應商設備封裝:40-TQFN-EP(5x5) 包裝:帶卷 (TR)
ADM1041A-EVALZ 功能描述:BOARD EVAL FOR ADM1041A RoHS:是 類別:編程器,開發系統 >> 評估板 - DC/DC 與 AC/DC(離線)SMPS 系列:- 標準包裝:1 系列:- 主要目的:DC/DC,步降 輸出及類型:1,非隔離 功率 - 輸出:- 輸出電壓:3.3V 電流 - 輸出:3A 輸入電壓:4.5 V ~ 28 V 穩壓器拓撲結構:降壓 頻率 - 開關:250kHz 板類型:完全填充 已供物品:板 已用 IC / 零件:L7981 其它名稱:497-12113STEVAL-ISA094V1-ND
ADM1041ARQ 功能描述:IC PWR SUPP MON/LOAD SHAR 24QSOP RoHS:否 類別:集成電路 (IC) >> PMIC - 電源控制器,監視器 系列:- 產品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:2,500 系列:- 應用:多相控制器 輸入電壓:- 電源電壓:9 V ~ 14 V 電流 - 電源:- 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:40-WFQFN 裸露焊盤 供應商設備封裝:40-TQFN-EP(5x5) 包裝:帶卷 (TR)
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