- 您现在的位置：买卖IC网 > PDF目录19334 > MAX6698UE34+ (Maxim Integrated)IC TEMP MONITOR 7CH 16-TSSOP PDF资料下载
参数资料
| 型号： | MAX6698UE34+ |
| 厂商： | Maxim Integrated |
| 文件页数： | 13/24页 |
| 文件大小： | 321K |
| 描述： | IC TEMP MONITOR 7CH 16-TSSOP |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 96 |
| 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 |
| 精确度： | ±3.5°C 本地（最大），±3°C 远程（最大） |
| 拓扑： | ADC，缓冲器，多路复用器，寄存器库 |
| 输出类型： | 2 线串行，I²C?/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-TSSOP（0.173"，4.40mm 宽） |
| 供应商设备封装： | 16-TSSOP |
| 包装： | 管件 |
either the measured value must drop below the thresh-
old minus the hysteresis value (4癈 or 4 LSBs), or the
trip threshold must be set at least 4癈 (or 4 LSBs) above
the current value.
Applications Information
Remote-Diode Selection
The MAX6698 directly measures the die temperature of
CPUs and other ICs that have on-chip temperature-
sensing diodes (see the Typical Application Circuit) or
it can measure the temperature of a discrete diode-
connected transistor.
Effect of Ideality Factor
The accuracy of the remote temperature measurements
depends on the ideality factor (n) of the remote diode
(actually a transistor). The MAX6698 is optimized for n
= 1.008. A thermal diode on the substrate of an IC is
normally a pnp with the base and emitter brought out
the collector (diode connection) grounded. DXP_ must
be connected to the anode (emitter) and DXN_ must be
connected to the cathode (base) of this pnp. If a sense
transistor with an ideality factor other than 1.008 is
used, the output data is different from the data
obtained with the optimum ideality factor. Fortunately,
the difference is predictable. Assume a remote-diode
sensor designed for a nominal ideality factor n
NOMINAL
is used to measure the temperature of a diode with a
different ideality factor n1. The measured temperature
T
M
can be corrected using:
where temperature is measured in Kelvin and
n
NOMIMAL
for the MAX6698 is 1.008. As an example,
assume you want to use the MAX6698 with a CPU that
has an ideality factor of 1.002. If the diode has no
series resistance, the measured data is related to the
real temperature as follows:
For a real temperature of +85癈 (358.15K), the mea-
sured temperature is +82.87癈 (356.02K), an error of
-2.13癈.
Series Resistance Cancellation
Some thermal diodes on high-power ICs can have
excessive series resistance, which can cause tempera-
ture measurement errors with conventional remote tem-
perature sensors. Channel 1 of the MAX6698 has a
series resistance cancellation feature (enabled by bit 3
of the configuration 1 register) that eliminates the effect
of diode series resistance. Set bit 3 to 1 if the series
resistance is large enough to affect the accuracy of
T
T
n
n
T
T
ACTUAL M
NOMINAL
M
M
=
?/DIV>
?/DIV>
?/DIV>
?/DIV>
?/DIV>
?/DIV>
?/DIV>
=
?/DIV>
?/DIV>
?/DIV>
?/DIV>
?/DIV>
?/DIV>
?/DIV>
=
1
1 008
1 002
1 00599
.
.
( .
)
T T
n
n
M
ACTUAL
NOMINAL
=
?/DIV>
?/DIV>
?/DIV>
?/DIV>
?/DIV>
?/DIV>
1
______________________________________________________________________________________ 13
7-Channel Precision Remote-Diode, Thermistor,
and Local Temperature Monitor
BIT
NAME
POR
STATE
FUNCTION
7(MSB)
Reserved
0
6
Reserved
0
5
Mask Thermistor 3
OVERT
0
Thermistor 3 OVERT Mask Bit. Set to logic 1 to mask thermistor 3 OVERT.
4
Mask Thermistor 2
OVERT
0
Thermistor 2 OVERT Mask Bit. Set to logic 1 to mask thermistor 2 OVERT.
3
Mask Thermistor 1
OVERT
0
Thermistor 1 OVERT Mask Bit. Set to logic 1 to mask thermistor 1 OVERT.
2
Reserved
0
1
Reserved
0
0
Mask OVERT 1
0
Channel 1 Remote-Diode OVERT Mask Bit. Set to logic 1 to mask channel 1
OVERT.
Table 7. Configuration 3 Register
相关PDF资料 |
PDF描述 |
|---|---|
| RSM40DRSN | CONN EDGECARD 80POS DIP .156 SLD |
| TAJE107M010RNJ | CAP TANT 100UF 10V 20% 2917 |
| THJD336K020RJN | CAP TANT 33UF 20V 10% 2917 |
| GEM24DSES-S243 | CONN EDGECARD 48POS .156 EYELET |
| VI-2TK-CW-F4 | CONVERTER MOD DC/DC 40V 100W |
相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX6698UE34+ | 功能描述:板上安装温度传感器 7Ch Precision Remote Diode Thermistor RoHS:否 制造商:Omron Electronics 输出类型:Digital 配置: 准确性:+/- 1.5 C, +/- 3 C 温度阈值: 数字输出 - 总线接口:2-Wire, I2C, SMBus 电源电压-最大:5.5 V 电源电压-最小:4.5 V 最大工作温度:+ 50 C 最小工作温度:0 C 关闭: 安装风格: 封装 / 箱体: 设备功能:Temperature and Humidity Sensor |
| MAX6698UE34+T | 功能描述:板上安装温度传感器 7Ch Precision Remote Diode Thermistor RoHS:否 制造商:Omron Electronics 输出类型:Digital 配置: 准确性:+/- 1.5 C, +/- 3 C 温度阈值: 数字输出 - 总线接口:2-Wire, I2C, SMBus 电源电压-最大:5.5 V 电源电压-最小:4.5 V 最大工作温度:+ 50 C 最小工作温度:0 C 关闭: 安装风格: 封装 / 箱体: 设备功能:Temperature and Humidity Sensor |
| MAX6698UE34-T | 功能描述:板上安装温度传感器 RoHS:否 制造商:Omron Electronics 输出类型:Digital 配置: 准确性:+/- 1.5 C, +/- 3 C 温度阈值: 数字输出 - 总线接口:2-Wire, I2C, SMBus 电源电压-最大:5.5 V 电源电压-最小:4.5 V 最大工作温度:+ 50 C 最小工作温度:0 C 关闭: 安装风格: 封装 / 箱体: 设备功能:Temperature and Humidity Sensor |
| MAX6698UE38 | 功能描述:板上安装温度传感器 RoHS:否 制造商:Omron Electronics 输出类型:Digital 配置: 准确性:+/- 1.5 C, +/- 3 C 温度阈值: 数字输出 - 总线接口:2-Wire, I2C, SMBus 电源电压-最大:5.5 V 电源电压-最小:4.5 V 最大工作温度:+ 50 C 最小工作温度:0 C 关闭: 安装风格: 封装 / 箱体: 设备功能:Temperature and Humidity Sensor |
| MAX6698UE38+ | 功能描述:板上安装温度传感器 7Ch Precision Remote Diode Thermistor RoHS:否 制造商:Omron Electronics 输出类型:Digital 配置: 准确性:+/- 1.5 C, +/- 3 C 温度阈值: 数字输出 - 总线接口:2-Wire, I2C, SMBus 电源电压-最大:5.5 V 电源电压-最小:4.5 V 最大工作温度:+ 50 C 最小工作温度:0 C 关闭: 安装风格: 封装 / 箱体: 设备功能:Temperature and Humidity Sensor |
发布紧急采购，3分钟左右您将得到回复。