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参数资料
| 型号： | ADM1034ARQZ-REEL7 |
| 厂商： | ON Semiconductor |
| 文件页数： | 12/38页 |
| 文件大小： | 427K |
| 描述： | IC THERM/FAN SPEED CTRLR 16-QSOP |
| 产品变化通告： | MFG CHG Notification ADI to ON Semi |
| 标准包装： | 1,000 |
| 功能： | 风扇控制，温度监控器 |
| 传感器类型： | 内部和外部 |
| 感应温度： | -40°C ~ 125°C，外部传感器 |
| 精确度： | ±1°C |
| 拓扑： | ADC，比较器，多路复用器，寄存器库 |
| 输出类型： | SMBus? |
| 输出警报： | 是 |
| 输出风扇： | 是 |
| 电源电压： | 3 V ~ 5.5 V |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-SSOP（0.154"，3.90mm 宽） |
| 供应商设备封装： | 16-QSOP |
| 包装： | 带卷 (TR) |
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ADM1034
http://onsemi.com
12
Figure 19. Reading Data from a Previously Selected Register
SCL
SDA
D7
D6
D5
D4
D3
D2
D1
D0
NO ACK. BY
ADM1034
START BY
MASTER
9
1
ACK. BY
ADM1034
9
STOP BY
MASTER
A2
A1
A0
1
FRAME 1
SERIAL BUS ADDRESS BYTE
FRAME 2
DATA BYTE FROM ADM1034
R/W
A3
A4
A5
A6
Register Addresses for Single/Block Byte Modes
The ADM1034 supports single byte as well as block read
and write operations. The register address determines
whether a single byte or multiple byte (block) operation is
run. For a single byte operation, the MSB of the register
address is set to 0; for a multiple byte operation, it is set to 1.
The number of bytes read in a multiple byte operation is set
in the #Bytes/Block Read Register at Address 0x00. The
number of bytes written to the ADM1034 is specified during
the block write operation. The addresses quoted in the
register map and throughout this data sheet assume single
byte operation. For multiple byte operations, set the MSB of
each register address to 1.
Write Operations
The SMBus specifications define protocols for read and
write operations. The ADM1034 supports send byte, write
byte, and block byte SMBus write protocols. The following
abbreviations are used in the diagrams:
S START
P STOP
R READ
W WRITE
A ACKNOWLEDGE
A
NO ACKNOWLEDGE
Send Byte
In this operation, the master device sends a
single-command byte to a slave device as follows:
1. The master device asserts a start condition on
SDA.
2. The master sends a 7-bit address followed by the
write bit (low).
3. The addressed slave device asserts ACK on SDA.
4. The master sends the register address.
5. The slave asserts ACK on SDA.
6. The master asserts a stop condition on SDA, and
the transaction ends.
Figure 20. Send Byte
SLAVE
ADDRESS
S
REG
ADDRESS
W
A
A
P
The ADM1034 uses the send byte operation to write a
register address to the APR for a subsequent read from the
same address. (See Figure 24). The user may be required to
read data from the register immediately after setting up the
address. If so, the master can assert a repeat start condition
immediately after the final ACK and carry out a single byte
read without asserting an intermediate stop condition.
Write Byte
In this operation, the master device sends a register
address and one data byte to the slave device as follows:
1. The master asserts a start condition on SDA.
2. The master sends the 7-bit slave address followed
by a write bit (low).
3. The addressed slave device asserts ACK on SDA.
4. The master sends the register address. The MSB of
the register address should equal 0 for a write byte
operation. If the MSB equals 1, a block write
operation takes place.
5. The slave asserts ACK on SDA.
6. The master sends a data byte.
7. The slave asserts ACK on SDA.
8. The master asserts a stop condition on SDA to end
the transaction.
Figure 21. Write Byte Operation
SLAVE
ADDRESS
S
REG
ADDRESS
DATA
W
A
A
A
P
Block Write
In this operation, the master device writes a block of data
to a slave address as follows. A maximum of 32 bytes can be
written.
1. The master asserts a start condition on SDA.
2. The master sends the 7-bit slave address followed
by a write bit (low).
3. The addressed slave device asserts ACK on SDA.
4. The master sends the register address. The register
address sets up the address pointer register and
determines whether a block write (MSB = 1) or a
byte write (MSB = 0) takes place.
5. The slave asserts ACK on SDA.
6. The master sends the byte count.
7. The slave asserts ACK on SDA.
8. The master sends N data bytes.
9. The slave asserts ACK on SDA after each byte.
10. The master asserts a stop condition on SDA to end
the transaction.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| ADM1040 | 制造商:AD 制造商全称:Analog Devices 功能描述:Power Supply Monitor ASIC |
| ADM1041 | 制造商:AD 制造商全称:Analog Devices 功能描述:Secondary-Side Controller with Current Share and Housekeeping |
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| ADM1041AARQZ | 功能描述:IC SECONDARY SIDE CTRLR 24QSOP RoHS:是 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) |
| ADM1041AARQZ-REEL | 功能描述:IC SECONDARY SIDE CTRLR 24QSOP RoHS:是 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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