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参数资料
| 型号： | ADM1041AARQZ-REEL7 |
| 厂商： | Analog Devices Inc |
| 文件页数： | 38/64页 |
| 文件大小： | 0K |
| 描述： | IC SECONDARY SIDE CTRLR 24QSOP |
| 产品变化通告： | Product Discontinuance 27/Oct/2011 |
| 标准包装： | 1,000 |
| 应用： | 次级侧控制器 |
| 电源电压： | 4.5 V ~ 5.5 V |
| 电流 - 电源： | 6mA |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 24-SSOP（0.154"，3.90mm 宽） |
| 供应商设备封装： | 24-QSOP |
| 包装： | 带卷 (TR) |
| 配用： | ADM1041-EVAL-ND - BOARD EVALUATION ADM1041 |
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ADM1041
6.
7.
8.
9.
The master sends a data byte that tells the slave device how
many data bytes will be sent. The SMBus specification
allows a maximum of 32 data bytes to be sent in a block
write.
The slave asserts ACK on SDA.
The master sends N data bytes.
The slave asserts ACK on SDA after each data byte.
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 ADM1041, 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:
10. The master asserts a stop condition on SDA to end the
transaction.
1.
The master device asserts a start condition on SDA.
1
2
3
4
5
6
7
8
9
10
2.
The master sends the 7-bit slave address followed by the
S
SLAVE
ADDRESS
W A
COMMAND A0h
(BLOCK WRITE)
A
BYTE
COUNT
A DATA 1 A DATA 2 A DATA N A P
write bit (low).
Figure 34. Block Write to EEPROM or RAM
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.
SMBus READ OPERATIONS
The ADM1041 uses the following SMBus read protocols.
Receive Byte
In this operation, the master device receives a single byte from a
slave device, as follows:
3.
4.
5.
6.
7.
8.
9.
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 ADM1041 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
1.
2.
3.
4.
5.
6.
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.
many data bytes will 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.
In the ADM1041, 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/
1
S
2
SLAVE
ADDRESS
3
R A
4
DATA
5 6
A P
Figure 35. Single-Byte Read from EEPROM or RAM
1
2
3
4
5 6
7
8
9
10
11
12
13 14
S
SLAVE
ADDRESS
W A
COMMAND A1h
(BLOCK READ)
A S
SLAVE
ADDRESS
R A
BYTE
COUNT
A DATA 1 A DATA N A P
Figure 36. Block Read from EEPROM or RAM
Rev. A | Page 38 of 64
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相关代理商/技术参数 |
参数描述 |
|---|---|
| ADM1041A-EVALZ | 功能描述:BOARD EVAL FOR ADM1041A RoHS:是 类别:编程器，开发系统 >> 评估板 - DC/DC 与 AC/DC（离线）SMPS 系列:- 标准包装:1 系列:- 主要目的:DC/DC，步降 输出及类型:1，非隔离 功率 - 输出:- 输出电压:3.3V 电流 - 输出:3A 输入电压:4.5 V ~ 28 V 稳压器拓扑结构:降压 频率 - 开关:250kHz 板类型:完全填充 已供物品:板 已用 IC / 零件:L7981 其它名称:497-12113STEVAL-ISA094V1-ND |
| ADM1041ARQ | 功能描述:IC PWR SUPP MON/LOAD SHAR 24QSOP RoHS:否 类别:集成电路 (IC) >> PMIC - 电源控制器，监视器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,500 系列:- 应用:多相控制器 输入电压:- 电源电压:9 V ~ 14 V 电流 - 电源:- 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:40-WFQFN 裸露焊盘 供应商设备封装:40-TQFN-EP（5x5） 包装:带卷 (TR) |
| ADM1041ARQ-2 | 制造商:Rochester Electronics LLC 功能描述: 制造商:Analog Devices 功能描述: |
| ADM1041ARQ-REEL | 制造商:AD 制造商全称:Analog Devices 功能描述:Secondary-Side Controller with Current Share and Housekeeping |
| ADM1041ARQ-REEL7 | 功能描述:IC PWR SUP MON/LOAD SHARE 24QSOP RoHS:否 类别:集成电路 (IC) >> PMIC - 电源控制器，监视器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,500 系列:- 应用:多相控制器 输入电压:- 电源电压:9 V ~ 14 V 电流 - 电源:- 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:40-WFQFN 裸露焊盘 供应商设备封装:40-TQFN-EP（5x5） 包装:带卷 (TR) |
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