- 您现在的位置：买卖IC网 > Datasheet目录39 > ADM1030ARQZ-RL7 (ON Semiconductor)IC SNSR TEMP/FAN PWM CTRL 16QSOP Datasheet资料下载
参数资料
| 型号： | ADM1030ARQZ-RL7 |
| 厂商： | ON Semiconductor |
| 文件页数： | 9/30页 |
| 文件大小： | 327K |
| 描述： | IC SNSR TEMP/FAN PWM CTRL 16QSOP |
| 产品变化通告： | MFG CHG Notification ADI to ON Semi Product Obsolescence 11/Feb/2009 |
| 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： | 0°C ~ 100°C，外部传感器 |
| 精确度： | ±1°C，±1°C（最小值） |
| 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： | 0°C ~ 100°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) |
第1页第2页第3页第4页第5页第6页第7页第8页当前第9页第10页第11页第12页第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页第29页第30页
ADM1030
http://onsemi.com
9
Figure 16. Writing to the Address Pointer Register Only
0
SCL
SDA
1
0
1
1
A1
A0
D7
D6
D5
D4
D3
D2
D1
D0
ACK. BY
ADM1030
START BY
MASTER
1
9
1
ACK. BY
ADM1030
9
STOP BY
MASTER
FRAME 1
SERIAL BUS ADDRESS BYTE
FRAME 2
ADDRESS POINTER REGISTER BYTE
R/W
Figure 17. Reading Data from a Previously Selected Register
SCL
SDA
D7
D6
D5
D4
D3
D2
D1
D0
NO ACK.
BY MASTER
START BY
MASTER
9
1
ACK. BY
ADM1030
9
STOP BY
MASTER
0
1
0
1
1
A1
A0
1
FRAME 1
SERIAL BUS ADDRESS BYTE
FRAME 2
DATA BYTE FROM ADM1030
R/W
Alert Response Address
Alert Response Address (ARA) is a feature of SMBus
devices that allows an interrupting device to identify itself
to the host when multiple devices exist on the same bus.
The INT
output can be used as an interrupt output or can
be used as an SMBALERT
. One or more INT
outputs can be
connected to a common SMBALERT
line connected to the
master. If a devices INT
line goes low, the following
procedure occurs:
1. SMBALERT
pulled low.
2. Master initiates a read operation and sends the
Alert Response Address (ARA = 0001 100). This
is a general call address that must not be used as a
specific device address.
3. The device whose INT
output is low responds to
the Alert Response Address, and the master reads
its device address. The address of the device is
now known and can be interrogated in the usual
way.
4. If more than one devices INT
output is low, the
one with the lowest device address will have
priority, in accordance with normal SMBus
arbitration.
5. Once the ADM1030 has responded to the Alert
Response Address, it will reset its INT
output;
however, if the error condition that caused the
interrupt persists, INT
will be reasserted on the
next monitoring cycle.
Temperature Measurement System
Internal Temperature Measurement
The ADM1030 contains an on-chip bandgap temperature
sensor. The on-chip ADC performs conversions on the
output of this sensor and outputs the temperature data in
10-bit twos complement format. The resolution of the local
temperature sensor is 0.25癈. The format of the temperature
data is shown in Table 6.
External Temperature Measurement
The ADM1030 can measure the temperature of an
external diode sensor or diode-connected transistor,
connected to Pins 9 and 10.
These pins are a dedicated temperature input channel. The
function of Pin 7 is as a THERM
input/output and is used to
flag overtemperature conditions.
The forward voltage of a diode or diode-connected
transistor, operated at a constant current, exhibits a negative
temperature coefficient of about 2 mV/癈. Unfortunately,
the absolute value of V
BE
, varies from device to device, and
individual calibration is required to null this out, so the
technique is unsuitable for mass production.
The technique used in the ADM1030 is to measure the
change in V
BE
when the device is operated at two different
currents.
This is given by:
(eq. 1)
DV
BE
+ KTq ln(N)
where:
K is Boltzmanns constant
q is charge on the carrier
T is absolute temperature in Kelvins
N is ratio of the two currents
Figure 18 shows the input signal conditioning used to
measure the output of an external temperature sensor. This
figure shows the external sensor as a substrate transistor,
provided for temperature monitoring on some
microprocessors, but it could equally well be a discrete
transistor.
相关PDF资料 |
PDF描述 |
|---|---|
| ADM1032ARZ-REEL | IC TEMP MONITOR 85DEG 8SOIC |
| ADM1033ARQZ-RL7 | IC THERM/FAN SPEED CTLR 16-QSOP |
| ADM1034ARQZ-REEL | IC THERM/FAN SPEED CTRLR 16-QSOP |
| ADN8810ACPZ-REEL7 | IC CURRENT SOURCE(12BIT) 24LFCSP |
| ADP2140ACPZ3328R7 | IC REG DL BCK/LINEAR 10LFCSP |
相关代理商/技术参数 |
参数描述 |
|---|---|
| ADM1031 | 制造商:AD 制造商全称:Analog Devices 功能描述:Intelligent Temperature Monitor and Dual PWM Fan Controller |
| ADM1031ARQ | 功能描述:IC SENSOR 2-TEMP/FAN CTRL 16QSOP RoHS:否 类别:集成电路 (IC) >> PMIC - 热管理 系列:- 标准包装:1 系列:- 功能:温度监控系统（传感器） 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:±2.5°C 本地（最大值），±5°C 远程（最大值） 拓扑:ADC，比较器，寄存器库 输出类型:2 线 SMBus? 输出警报:无 输出风扇:无 电源电压:2.7 V ~ 5.5 V 工作温度:-40°C ~ 125°C 安装类型:表面贴装 封装/外壳:SOT-23-8 供应商设备封装:SOT-23-8 包装:Digi-Reel® 其它名称:296-22675-6 |
| ADM1031ARQ-ND | 制造商:ON Semiconductor 功能描述: |
| ADM1031ARQ-REEL | 功能描述:IC SENSOR 2-TEMP/FAN CTRL 16QSOP RoHS:否 类别:集成电路 (IC) >> PMIC - 热管理 系列:- 标准包装:1 系列:- 功能:温度监控系统（传感器） 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:±2.5°C 本地（最大值），±5°C 远程（最大值） 拓扑:ADC，比较器，寄存器库 输出类型:2 线 SMBus? 输出警报:无 输出风扇:无 电源电压:2.7 V ~ 5.5 V 工作温度:-40°C ~ 125°C 安装类型:表面贴装 封装/外壳:SOT-23-8 供应商设备封装:SOT-23-8 包装:Digi-Reel® 其它名称:296-22675-6 |
| ADM1031ARQ-REEL7 | 功能描述:IC SENSOR 2-TEMP/FAN CTRL 16QSOP RoHS:否 类别:集成电路 (IC) >> PMIC - 热管理 系列:- 标准包装:1 系列:- 功能:温度监控系统（传感器） 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:±2.5°C 本地（最大值），±5°C 远程（最大值） 拓扑:ADC，比较器，寄存器库 输出类型:2 线 SMBus? 输出警报:无 输出风扇:无 电源电压:2.7 V ~ 5.5 V 工作温度:-40°C ~ 125°C 安装类型:表面贴装 封装/外壳:SOT-23-8 供应商设备封装:SOT-23-8 包装:Digi-Reel® 其它名称:296-22675-6 |
发布紧急采购，3分钟左右您将得到回复。