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参数资料
| 型号： | MCP9800A0T-M/OTG |
| 厂商： | Microchip Technology |
| 文件页数： | 16/42页 |
| 文件大小： | 0K |
| 描述： | IC SENSOR THERMAL 2.7V SOT23-5 |
| 标准包装： | 1 |
| 功能： | 温度监控系统（传感器） |
| 传感器类型： | 内部 |
| 感应温度： | -55°C ~ 125°C |
| 精确度： | ±2°C（最小值） |
| 拓扑： | ADC（三角积分型），寄存器库 |
| 输出类型： | I²C?/SMBus? |
| 输出警报： | 无 |
| 输出风扇： | 是 |
| 电源电压： | 2.7 V ~ 5.5 V |
| 工作温度： | -55°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | SC-74A，SOT-753 |
| 供应商设备封装： | SOT-23-5 |
| 包装： | 标准包装 |
| 配用： | MCP9800DM-TS1-ND - DEMO BOARD TEMP SENSOR MCP9800 MCP9800DM-PCTL-ND - BOARD DEMO FOR PICTAIL MCP9800 |
| 其它名称： | MCP9800A0T-MOTGDKR |
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MCP9800/1/2/3
5.3.1
AMBIENT TEMPERATURE
EQUATION 5-2:
REGISTER (T A )
The MCP9800/1/2/3 has a 16-bit read-only Ambient
T A = Code ? 2
– 4
Temperature register that contains 9-bit to 12-bit
temperature data. (0.5°C to 0.0625°C resolutions,
respectively). This data is formatted in two’s
complement. The bit assignments, as well as the
corresponding resolution, is shown in the register
assignment below.
The refresh rate of this register depends on the
selected ADC resolution. It takes 30 ms (typical) for
9-bit data and 240 ms (typical) for 12-bit data. Since
this register is double-buffered, the user can read the
register while the MCP9800/1/2/3 performs
Analog-to-Digital conversion in the background. The
decimal code to ambient temperature conversion is
Where:
T A = Ambient Temperature (°C)
Code = MCP9800 output in decimal
REGISTER 5-2:
Upper Half:
AMBIENT TEMPERATURE REGISTER (T A ) – ADDRESS < 0000 0000 >b
R-0
Sign
R-0
2 6 °C
R-0
2 5 °C
R-0
2 4 °C
R-0
2 3 °C
R-0
2 2 °C
R-0
2 1 °C
R-0
2 0 °C
bit 15
Lower Half:
bit 8
R-0
R-0
R-0
R-0
R-0
R-0
R-0
R-0
2
-1 °C/bit
2 -2 °C
2 -3 °C
2 -4 °C
0
0
0
0
bit 7
Legend:
bit 0
R = Readable bit
W = Writable bit
U = Unimplemented bit, read as ‘0’
-n = Value at POR
‘1’ = Bit is set
‘0’ = Bit is cleared
x = Bit is unknown
Note 1:
When the 0.5°C, 0.25°C or 0.125°C resolutions are selected, bit 6, bit 7 or bit 8 will remain clear < 0 >,
respectively.
DS21909D-page 16
? 2010 Microchip Technology Inc.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MCP9800A1T-M/OT | 制造商:Microchip Technology Inc 功能描述:digital temp sensor w -55 to +125 temp range & op volt range of +2.7 to + 5.5V |
| MCP9800A2T-M/OT | 制造商:Microchip Technology Inc 功能描述:digital temp sensor w -55 to +125 temp range & op volt range of +2.7 to + 5.5V |
| MCP9800A3T-M/OT | 制造商:Microchip Technology Inc 功能描述: 制造商:Microchip Technology Inc 功能描述:digital temp sensor w -55 to +125 temp range & op volt range of +2.7 to + 5.5V |
| MCP9800A5-M/MS | 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:2-Wire High-Accuracy Temperature Sensor |
| MCP9800A5-M/OT | 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:2-Wire High-Accuracy Temperature Sensor |
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