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參數(shù)資料
| 型號： | MAX7500MTA+T |
| 廠商： | Maxim Integrated |
| 文件頁數(shù)： | 9/13頁 |
| 文件大?。?/td> | 710K |
| 描述： | IC TEMP SENSOR DGTL 8TDFN |
| 產品培訓模塊： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標準包裝： | 2,500 |
| 功能： | 溫度監(jiān)視系統(tǒng)（傳感器），監(jiān)視器 |
| 傳感器類型： | 內部 |
| 感應溫度： | -55°C ~ 125°C |
| 精確度： | ±3°C（最小值） |
| 拓撲： | ADC（三角積分型），寄存器庫 |
| 輸出類型： | I²C?/SMBus? |
| 輸出警報： | 是 |
| 輸出風扇： | 是 |
| 電源電壓： | 3 V ~ 5.5 V |
| 工作溫度： | -55°C ~ 125°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 8-WFDFN 裸露焊盤 |
| 供應商設備封裝： | 8-TDFN-EP（2x2） |
| 包裝： | 帶卷 (TR) |
See Figure 4. Set bit D1 to 1 to run the overtemperature
shutdown block in interrupt mode. OS is asserted in
interrupt mode when the temperature rises above the
T
OS
value or falls below the T
HYST
value. OS is
deasserted only after performing a read operation.
Set bit D0, the shutdown bit, to zero for normal opera-
tion. Set bit D0 to 1 to shut down the MAX7500
MAX7504 internal blocks, dropping the supply current
to 3礎. The I
2
C interface remains active as long as the
shutdown bit is set. The T
OS
, T
HYST
, and configuration
registers can still be written to and read from while in
shutdown.
T
OS
and T
HYST
Registers
In comparator mode, the OS output behaves like a ther-
mostat. The output asserts when the temperature rises
above the limit set in the T
OS
register. The output
deasserts when the temperature falls below the limit set
in the T
HYST
register. In comparator mode, the OS output
can be used to turn on a cooling fan, initiate an emer-
gency shutdown signal, or reduce system clock speed.
In interrupt mode, exceeding T
OS
also asserts OS. OS
remains asserted until a read operation is performed on
any of the registers. Once OS has asserted due to
crossing above T
OS
and is then reset, it is asserted
again only when the temperature drops below T
HYST
.
The output remains asserted until it is reset by a read.
Putting the MAX7500MAX7504 into shutdown mode
also resets OS.
The T
OS
and T
HYST
registers are accessed with 2
bytes, with bits D15D7 containing the data. Bits
D6D0 are dont cares when writing to these two regis-
ters and read-back zeros when reading from these reg-
isters. The LSB represents 0.5癈 while the MSB
represents 64癈. See Table 7.
Digital Temperature Sensors and Thermal
Watchdog with Bus Lockup Protection
_______________________________________________________________________________________ 9
D7
D6
D5
D4
D3
D2
D1
D0
0
0
0
Fault queue
Fault queue
OS polarity
Comparator/
interrupt
Shutdown
Table 5. Configuration Register Definition
D4
D3
NO. OF FAULTS
0
0
1 (POR state)
0
1
2
1
0
4
1
1
6
Table 6. Configuration Register Fault
Queue Bits
T
OS
T
HYST
OS OUTPUT
(COMPARATOR MODE)
OS SET ACTIVE LOW
OS OUTPUT
(INTERRUPT MODE)
OS SET ACTIVE LOW
READ
OPERATION
READ
OPERATION
READ
OPERATION
TEMPERATURE
Figure 4. OS Timing Diagram
UPPER BYTE
LOWER BYTE
COMMAND
D15
D14
D13
D12
D11 D10
D9
D8
D7
D6 D5 D4 D3 D2 D1 D0
Write
Sign bit
1 = negative
0 = positive
MSB
64癈
32癈
16癈
8癈
4癈
2癈
1癈
LSB
0.5癈
X
X
X
X
X
X
X
Read
Sign bit
1 = negative
0 = positive
MSB
64癈
32癈
16癈
8癈
4癈
2癈
1癈
LSB
0.5癈
0
0
0
0
0
0
0
Table 7. T
OS
and T
HYST
Register Definitions
X = Dont care.
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| MAX7500MUA | 功能描述:板上安裝溫度傳感器 RoHS:否 制造商:Omron Electronics 輸出類型:Digital 配置: 準確性:+/- 1.5 C, +/- 3 C 溫度閾值: 數(shù)字輸出 - 總線接口:2-Wire, I2C, SMBus 電源電壓-最大:5.5 V 電源電壓-最小:4.5 V 最大工作溫度:+ 50 C 最小工作溫度:0 C 關閉: 安裝風格: 封裝 / 箱體: 設備功能:Temperature and Humidity Sensor |
| MAX7500MUA+ | 功能描述:板上安裝溫度傳感器 Digital Temperature Sensor RoHS:否 制造商:Omron Electronics 輸出類型:Digital 配置: 準確性:+/- 1.5 C, +/- 3 C 溫度閾值: 數(shù)字輸出 - 總線接口:2-Wire, I2C, SMBus 電源電壓-最大:5.5 V 電源電壓-最小:4.5 V 最大工作溫度:+ 50 C 最小工作溫度:0 C 關閉: 安裝風格: 封裝 / 箱體: 設備功能:Temperature and Humidity Sensor |
| MAX7500MUA+T | 功能描述:板上安裝溫度傳感器 Digital Temperature Sensor RoHS:否 制造商:Omron Electronics 輸出類型:Digital 配置: 準確性:+/- 1.5 C, +/- 3 C 溫度閾值: 數(shù)字輸出 - 總線接口:2-Wire, I2C, SMBus 電源電壓-最大:5.5 V 電源電壓-最小:4.5 V 最大工作溫度:+ 50 C 最小工作溫度:0 C 關閉: 安裝風格: 封裝 / 箱體: 設備功能:Temperature and Humidity Sensor |
| MAX7500MUA-T | 功能描述:板上安裝溫度傳感器 RoHS:否 制造商:Omron Electronics 輸出類型:Digital 配置: 準確性:+/- 1.5 C, +/- 3 C 溫度閾值: 數(shù)字輸出 - 總線接口:2-Wire, I2C, SMBus 電源電壓-最大:5.5 V 電源電壓-最小:4.5 V 最大工作溫度:+ 50 C 最小工作溫度:0 C 關閉: 安裝風格: 封裝 / 箱體: 設備功能:Temperature and Humidity Sensor |
| MAX7501MSA | 功能描述:板上安裝溫度傳感器 RoHS:否 制造商:Omron Electronics 輸出類型:Digital 配置: 準確性:+/- 1.5 C, +/- 3 C 溫度閾值: 數(shù)字輸出 - 總線接口:2-Wire, I2C, SMBus 電源電壓-最大:5.5 V 電源電壓-最小:4.5 V 最大工作溫度:+ 50 C 最小工作溫度:0 C 關閉: 安裝風格: 封裝 / 箱體: 設備功能:Temperature and Humidity Sensor |
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