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PDF MPX4105A Data sheet ( Hoja de datos )
| Número de pieza | MPX4105A | |
| Descripción | Integrated Silicon Pressure Sensor | |
| Fabricantes | Freescale Semiconductor | |
| Logotipo |  |
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Freescale Semiconductor
Technical Data
Document Number: MPX4105A
Rev 6, 07/2006
Integrated Silicon Pressure Sensor
for Manifold Absolute Pressure
Applications On-Chip Signal
Conditioned, Temperature
Compensated and Calibrated
The Freescale MPX4105A series Manifold Absolute Pressure (MAP) sensor
for engine control is designed to sense absolute air pressure within the intake
manifold. This measurement can be used to compute the amount of fuel required
for each cylinder.
Freescale’s MAP sensor integrates on-chip, bipolar op amp circuitry and thin
film resistor networks to provide a high output signal and temperature
compensation. The small form factor and high reliability of on-chip integration
make the Freescale MAP sensor a logical and economical choice for the
automotive system designer.
The MPX4105A series piezoresistive transducer is a state-of-the-art,
monolithic, signal conditioned, silicon pressure sensor. This sensor combines
advanced micromachining techniques, thin film metallization, and bipolar
semiconductor processing to provide an accurate, high level analog output signal
that is proportional to applied pressure.
Figure 1 shows a block diagram of the internal circuitry integrated on a
pressure sensor chip.
Features
• 1.8% Maximum Error Over 0° to 85°C
• Specifically Designed for Intake Manifold Absolute
Pressure Sensing in Engine Control Systems
• Temperature Compensated Over –40 to +125°C
• Durable Epoxy Unibody Element
Typical Applications
• Manifold Sensing for Automotive Systems
• Ideally Suited for Microprocessor or Microcontroller-Based Systems
• Also Ideal for Non-Automotive Applications
ORDERING INFORMATION
Device Type
Options Case No.
UNIBODY PACKAGE (MPX4105A SERIES)
Basic Element
Absolute,
Element
867
MPX Series
Order No.
MPX4105A
Device Marking
MPX4105A
MPX4105A
SERIES
INTEGRATED
PRESSURE SENSOR
15 TO 105 kPA (2.2 TO 15.2 psi)
0.3 TO 4.9 V OUTPUT
UNIBODY PACKAGE
MPX4105A
CASE 867-08
PIN NUMBERS(1)
1 Vout 4
2 GND 5
3 VS 6
N/C
N/C
N/C
1. Pins 4, 5, and 6 are internal device
connections. Do not connect to external
circuitry or ground. Pin 1 is noted by the
notch in the lead.
© Freescale Semiconductor, Inc., 2006. All rights reserved.
1 page  
Transfer Function (MPX4105A)
Nominal Transfer Value: Vout = VS (P x 0.01 - 0.09)
± (Pressure Error x Temp. Factor x 0.01 x VS)
VS = 5.1 V ± 0.25 Vdc
Temperature Error Band
MPX4105A Series
Temperature
Error
Factor
4.0
3.0
2.0
1.0
Break Points
Temp
Multiplier
–40
–20
0 to 85
125
3.0
1.5
1.0
2.5
0.0
–40 –20 0 20 40 60 80 100 120 140
Temperature in °C
NOTE: The Temperature Multiplier is a linear response from –40°C to –20°C, –20°C to 0°C, and from 85°C to 125°C.
Pressure Error Band
3.0 Error Limits for Pressure
2.0
1.0
0.0 Pressure (in kPa)
20 40 60 80 100 120
–1.0
–2.0
–3.0 Pressure Error (Max)
40 to 94 (kPa)
15 (kPa)
105 (kPa)
±1.5 (kPa)
±2.4 (kPa)
±1.8 (kPa)
Sensors
Freescale Semiconductor
MPX4105A
5
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| Páginas | Total 7 Páginas | |
| PDF Descargar | [ Datasheet MPX4105A.PDF ] | |
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