参数资料
型号: MAX6662MSA+T
厂商: Maxim Integrated
文件页数: 5/9页
文件大小: 0K
描述: IC TEMP SENSOR SPI 8-SOIC
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 2,500
功能: 温度监视系统(传感器),监视器
传感器类型: 内部
感应温度: -55°C ~ 150°C
精确度: ±2.5°C(最小值)
拓扑: ADC,寄存器库
输出类型: SPI?
输出警报:
输出风扇:
电源电压: 3 V ~ 5.5 V
工作温度: -55°C ~ 150°C
安装类型: 表面贴装
封装/外壳: 8-SOIC(0.154",3.90mm 宽)
供应商设备封装: 8-SOIC(窄型)
包装: 带卷 (TR)
12-Bit + Sign Temperature Sensor with
SPI-Compatible Serial Interface
V CC
OT
12 -BIT
+ SIGN
ADC
ALERT
TEMPERATURE T LOW
T HIGH
T MAX
T HYST CONFIGURATION
SIO
SCLK
CS
Figure 1. MAX6662 Simplified Functional Diagram
SERIAL INTERFACE
For example: If T HIGH is set to 100°C and T HYST is set
to 20°C, ALERT does not assert until temperature
exceeds 100°C. If the temperature is then read through
the serial interface, ALERT deasserts. ALERT asserts
again when temperature is less than 80°C (Figure 2).
Comparator Mode
In the comparator mode, ALERT is asserted when tem-
Overtemperature Alert
OT operates only in comparator mode. The OT pin is
asserted when the temperature exceeds T MAX , and
deasserted when the temperature drops below
T MAX - T HYST . A read operation does not reset OT .
OT is an open-drain active-low (default) output, but can
be programmed to active-high.
perature exceeds the value in the T HIGH register, or is
lower than the value in the T LOW register. ALERT
deasserts when temperature is less than T HIGH - T HYST
or greater than T LOW + T HYST . Reading the registers
does not deassert ALERT .
For example: If T HIGH is set to 100°C and T LOW is set
to 80°C, ALERT does not assert until temperature
exceeds 100°C, or is below 80°C. Then, ALERT only
deasserts if temperature is less than T HIGH - T HYST or
T HIGH
T HIGH - T HYST
T LOW + T HYST
T LOW
ALERT
TEMPERATURE
greater than T LOW + T HYST .
* TEMPERATURE READ
*
* *
LAST INTERRUPT MISSED, BUT
THRESHOLD STILL CHANGES TO T HIGH .
Figure 2. Example of ALERT Operation in Interrupt Mode
_______________________________________________________________________________________
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