參數(shù)資料
型號(hào)： TMP512AIRSAT
廠商： TEXAS INSTRUMENTS INC
元件分類： 模擬信號(hào)調(diào)理
英文描述： SPECIALTY ANALOG CIRCUIT, PQCC16
封裝： GREEN, PLASTIC, QFN-16
文件頁數(shù)： 20/61頁
文件大?。?/td> 1758K
代理商： TMP512AIRSAT
Power_LSB=20Current_LSB
Power_LSB=400
10
-6
Max_Current=Current_LSB
32767
Max_Current=0.65534
Max_ShuntVoltage=Max_Current_Before_Overflow
R
SHUNT
Max_ShuntVoltage=0.32
MaximumPower=Max_Current_Before_Overflow
V
BUS_MAX
MaximumPower=20.48
Corrected_Full_Scale_Cal=trunc
Cal
MeasShuntCurrent
TMP513_Current
Corrected_Full_Scale_Cal=3548
SBOS491A
– JUNE 2010 – REVISED MAY 2011
6. Calculate the Power LSB with Equation 10. Equation 10 shows a general formula; because the bus voltage
measurement LSB is always 4mV, the power formula reduces to the calculated result.
(10)
7. Compute the maximum current and shunt voltage values (before overflow), as shown by Equation 11 and
Equation 12. Note that both Equation 11 and Equation 12 involve an If - then condition:
(11)
If Max_Current
≥ MaxPossible_I then
Max_Current_Before_Overflow = MaxPossible_I
Else
Max_Current_Before_Overflow = Max_Current
End If
(Note that Max_Current is greater than MaxPossible_I in this example.)
Max_Current_Before_Overflow = 0.64
(12)
If Max_ShuntVoltage
≥ VSHUNT_MAX
Max_ShuntVoltage_Before_Overflow = VSHUNT_MAX
Else
Max_ShuntVoltage_Before_Overflow= Max_ShuntVoltage
End If
(Note that Max_ShuntVoltage is greater than VSHUNT_MAX in this example.)
Max_ShuntVoltage_Before_Overflow = 0.32
8. Compute the maximum power with Equation 13.
(13)
9. (Optional second Calibration step.) Compute corrected full-scale calibration value based on measured
current.
TMP513_Current = 0.63484
MeaShuntCurrent = 0.55
(14)
Figure 32 illustrates how to perform the same procedure discussed in this example using the automated
TMP512/13EVM software. Note that the same numbers used in this nine-step example are used in the software
example. Note also that Figure 32 illustrates which results correspond to which step (for example, the information
entered in Step 1 is enclosed in a box in Figure 32 and labeled).
Copyright
2010–2011, Texas Instruments Incorporated
27
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TMP513 制造商:TI 制造商全稱:Texas Instruments 功能描述:Temperature and Power Supply System Monitors
TMP513AID 功能描述:板上安裝溫度傳感器 All-In-One Thermal & Pwr Monitoring Sol RoHS:否 制造商:Omron Electronics 輸出類型:Digital 配置: 準(zhǔn)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(guān)閉: 安裝風(fēng)格: 封裝 / 箱體: 設(shè)備功能:Temperature and Humidity Sensor
TMP513AIDR 功能描述:板上安裝溫度傳感器 All-In-One Thermal & Pwr Monitoring Sol RoHS:否 制造商:Omron Electronics 輸出類型:Digital 配置: 準(zhǔn)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(guān)閉: 安裝風(fēng)格: 封裝 / 箱體: 設(shè)備功能:Temperature and Humidity Sensor
TMP513AIRSAR 功能描述:板上安裝溫度傳感器 All-In-One Thermal & Pwr Monitor Sol RoHS:否 制造商:Omron Electronics 輸出類型:Digital 配置: 準(zhǔn)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(guān)閉: 安裝風(fēng)格: 封裝 / 箱體: 設(shè)備功能:Temperature and Humidity Sensor
TMP513AIRSAT 功能描述:板上安裝溫度傳感器 All-In-One Thermal & Pwr Monitor Sol RoHS:否 制造商:Omron Electronics 輸出類型:Digital 配置: 準(zhǔn)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(guān)閉: 安裝風(fēng)格: 封裝 / 箱體: 設(shè)備功能:Temperature and Humidity Sensor
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