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参数资料
| 型号： | MAX6662MSA+ |
| 厂商： | Maxim Integrated |
| 文件页数： | 8/9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： | 100 |
| 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： | 是 |
| 输出风扇： | 无 |
| 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： | 管件 |
12-Bit + Sign Temperature Sensor with
SPI-Compatible Serial Interface
Table 3. Output Code vs. Temperature
Applications Information
TEMPERATURE ( ° C)
+150.0000
+125.0000
+25.0000
+0.0625
0.0000
-0.0625
-25.0000
-55.0000
BINARY CODE
0100 1011 0000 0xxx
0011 1110 1000 0xxx
0000 1100 1000 0xxx
0000 0000 0000 1xxx
0000 0000 0000 0xxx
1111 1111 1111 1xxx
1111 0011 0111 0xxx
1111 1100 0111 0xxx
The MAX6662 supply current is typically 125μA when
the serial interface is active. When driving high-imped-
ance loads, the devices dissipate negligible power;
therefore, the die temperature is essentially the same
as the package temperature. The key to accurate tem-
perature monitoring is good thermal contact between
the MAX6662 package and the monitored device or cir-
cuit. Heat flows in and out of plastic packages primarily
through the leads. Short, wide copper traces leading to
the temperature monitor ensure that heat transfers
quickly and reliably. The rise in die temperature due to
self-heating is given by the following formula:
stored in the Temperature register and is in °C, using a
two’s-complement format with 1LSB corresponding to
0.0625°C (Table 3). The three least-significant bits (LSBs)
are temperature status (flag) bits. The Temperature regis-
ter is read only. Set the command byte to C1h for reading
the Temperature register.
Configuration Register
The Configuration register uses only 5 bits, bits 8 to 12.
Table 1 describes its function. Bit 8 is the shutdown bit
and should be set to 1 to shut down the entire
MAX6662 except the serial interface and POR. Bit 12 is
the fault queue bit. When the Fault Queue bit is 1, the
ALERT and OT outputs are asserted if four consecutive
temperature faults occurred. The Configuration register
can be read or written to. Writing to unused bits is
ignored. Set the command byte to C3h for reading from
this register; set the command byte to 83h for writing to
this register.
Temperature-Limit Registers
The High-Temperature (T HIGH ), Low-Temperature
(T LOW ), and the Hysteresis (T HYST ) registers set the
temperature limit for triggering the ALERT (Figure 1).
The Maximum-Temperature (T MAX ) and Hysteresis reg-
isters set the temperature threshold for the OT output.
These temperature-limit registers use the 9MSB bits
(8 bits + sign) for setting temperature values in two’s
complement format with 1°C resolution. The 7LSBs are
ignored. These registers can be read or written to.
Table 2 shows the command bytes for reading and
writing to these registers.
Δ T J = P DISSIPATION x θ JA
where P DISSIPATION is the power dissipated by the
MAX6662, and θ JA is the package’s thermal resistance.
The typical thermal resistance is +170°C/W for the
8-pin SO package. To limit the effects of self-heating,
minimize the output currents. For example, if the
MAX6662 sinks 4mA with the maximum ALERT voltage
specification of 0.8V, an additional 3.2mW of power is
dissipated within the IC. This corresponds to a 0.54°C
rise in the die temperature.
Chip Information
TRANSISTOR COUNT: Bipolar: 182
MOS: 10177
PROCESS: BiCMOS
8
_______________________________________________________________________________________
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| MAX6662MSA+ | 功能描述:板上安装温度传感器 12-Bit + Sign Temperature Sensor 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 |
| MAX6662MSA+T | 功能描述:板上安装温度传感器 12-Bit + Sign Temperature Sensor 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 |
| MAX6662MSA-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 |
| MAX6663AEE | 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 |
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