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参数资料
| 型号： | MPL115A2 |
| 厂商： | Freescale Semiconductor |
| 文件页数： | 10/16页 |
| 文件大小： | 0K |
| 描述： | IC BAROMETER I2C DGTL MINI 8LGA |
| 标准包装： | 490 |
| 压力类型： | 绝对 |
| 工作压力： | 7.25 ~ 16.68 PSI，50 ~ 115 kPa |
| 输出： | SPI |
| 精确度： | ±1% |
| 电源电压： | * |
| 端接类型： | PCB |
| 工作温度： | * |
| 封装/外壳： | 8-TLGA |
3.5
Example of Pressure Compensated Calculation in Floating-point Notation
a0 coefficient
b1 coefficient
b2 coefficient
=
=
=
2009.75
-2.37585
-0.92047
c12 coefficient =
0.000790
Pressure
Temperature
=
=
410 ADC counts
507 ADC counts
Pressure Compensation:
Pcomp = a0 + ( b1 + c12 ? Tadc ) ? Padc + b ( c )
Using the evaluation sequence shown in Section 3.3:
c12x2
= c12 * Tadc
= 0.000790 * 507
= 0.40053
a1
= b1 + c12x2 = -2.37585 + 0.40053
= -1.97532
a1x1
y1
a2x2
= a1 * Padc
= a0 + a1x1
= b2 * Tadc
= -1.97532 * 410
= 2009.75 + (-809.8812)
= -0.92047 * 507
= -809.8812
= 1199.8688
= -466.67829
PComp = y1 + a2x2
= 1199.8688 + (-466.67829)
= 733.19051
---------------------- + 50
Pressure (kPa) = P comp
?
115 – 50
1023
= 96.59kPa
---------------------- + 50
= 733.19
?
115 – 50
1023
4
1.
2.
Solder Recommendations
Use SAC solder alloy (i.e., Sn-Ag-Cu) with a melting point of about 217°C. It is recommended to use SAC305
(i.e., Sn-3.0 wt.% Ag-0.5 wt.% Cu).
Reflow
?
?
?
?
?
?
Ramp up rate: 2 to 3°C/s.
Preheat flat (soak): 110 to 130s.
Reflow peak temperature: 250 ° C to 260°C (depends on exact SAC alloy composition).
Time above 217°C: 40 to 90s (depends on board type, thermal mass of the board/quantities in the reflow).
Ramp down: 5 to 6°C/s.
Using an inert reflow environment (with O 2 level about 5 to 15 ppm).
MPL115A2
Sensors
10
Freescale Semiconductor, Inc.
相关PDF资料 |
PDF描述 |
|---|---|
| MPL115A1 | IC BAROMETER SPI DGTL MINI 8LGA |
| MPL115A2T1 | IC BAROMETER I2C DGTL MINI 8-LGA |
| MG-75-B-MD-R | SENSOR 75 PSI 4-20 MA 1/8 NPT |
| D2HW-BR213MR | SWITCH LEVER SPST-NO 2A SEALED |
| MG-50-B-MD-R | SENSOR 50 PSI 4-20 MA 1/8 NPT |
相关代理商/技术参数 |
参数描述 |
|---|---|
| MPL115A2 | 制造商:Freescale Semiconductor 功能描述:IC MINI I2C DIGITAL BAROMETER 50 to 11 |
| MPL115A2_10 | 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:Miniature I2C Digital Barometer |
| MPL115A2_13 | 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:Miniature I2C Digital Barometer |
| MPL115A2T1 | 功能描述:板上安装压力/力传感器 Miniature I2C Digital Barometer RoHS:否 制造商:Honeywell 工作压力:0 bar to 4 bar 压力类型:Gage 准确性:+ / - 0.25 % 输出类型:Digital 安装风格:Through Hole 工作电源电压:5 V 封装 / 箱体:SIP 端口类型:Dual Radial Barbed, Same sides |
| MPL115A2T1 | 制造商:Freescale Semiconductor 功能描述:IC PRESSURE SENSOR I2C DIGITAL BAROMET |
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