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PDF MPX4250A Data sheet ( Hoja de datos )
| Número de pieza | MPX4250A | |
| Descripción | INTEGRATED PRESSURE SENSOR | |
| Fabricantes | Freescale Semiconductor | |
| Logotipo |  |
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Freescale Semiconductor
Technical Data
Integrated Silicon Pressure Sensor
Manifold Absolute Pressure Sensor
On-Chip Signal Conditioned,
Temperature Compensated
and Calibrated
The MPX4250A/MPXA4250A 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.
The MPX4250A/MPXA4250A series piezoresistive transducer is a state-of-
the-art monolithic silicon pressure sensor designed for a wide range of
applications, particularly those employing a microcontroller or microprocessor
with A/D inputs. This transducer combines advanced micromachining
techniques, thin-film metallization and bipolar processing to provide an accurate,
high-level analog output signal that is proportional to the applied pressure. The
small form factor and high reliability of on-chip integration make the Freescale
sensor a logical and economical choice for the automotive system engineer.
Features
• 1.5% Maximum Error Over 0° to 85°C
• Specifically Designed for Intake Manifold Absolute Pressure Sensing in
Engine Control Systems
• Patented Silicon Shear Stress Strain Gauge
• Temperature Compensated Over -40° to +125°C
• Offers Reduction in Weight and Volume Compared to Existing Hybrid
Modules
• Durable Epoxy Unibody Element or Thermoplastic Small Outline, Surface
Mount Package
• Ideal for Non-Automotive Applications
Typical Applications
• Turbo Boost Engine Control
• Ideally Suited for Microprocessor or Microcontroller-Based Systems
ORDERING INFORMATION
Device
Type
Options
Case No.
MPX Series
Order Number
SMALL OUTLINE PACKAGE(1) (MPXA4250A SERIES)
Basic Absolute, Element Only
Elements
482 MPXA4250A6U
482 MPXA4250A6T1
Ported Absolute, Axial Port
Elements
482A
482A
MPXA4250AC6U
MPXA4250AC6T1
UNIBODY PACKAGE(2) (MPX4250A SERIES)
Basic Absolute, Element Only
Element
867 MPX4250A
Ported Absolute, Ported
Elements
867B MPX4250AP
Packing
Options
Device
Marking
Rails
Tape & Reel
Rails
Tape & Reel
MPXA4250A
MPXA4250A
MPXA4250A
MPXA4250A
— MPX4250A
— MPX4250AP
1. The MPXA4250A series pressure sensors are available in the basic element package
or with pressure port fitting. Two packing options are offered for each type.
2. The MPX4250A series pressure sensors are available in the basic element package
or with pressure port fittings providing mounting ease and barbed hose connections.
MPX4250A
Rev 6, 12/2006
MPX4250A
MPXA4250A
SERIES
INTEGRATED
PRESSURE SENSOR
20 TO 250 kPA (2.9 TO 36.3 psi)
0.2 TO 4.9 V OUTPUT
SMALL OUTLINE PACKAGES
MPXA4250A6U/6T1 MPXA4250AC6U/C6T1
CASE 482-01
CASE 482A-01
SMALL OUTLINE PACKAGE
PIN NUMBERS
1
N/C(1), (2)
5(2)
N/C
2 VS 6(2) N/C
3
GND
7(2)
N/C
4 VOUT 8
N/C
1. Pin 1 in noted by the notch in the lead.
2. Pins 1, 5, 6, and 7 are internal device
connections. Do not connect to external
circuitry or ground.
UNIBODY PACKAGES
MPX4250A
CASE 867-08
MPX4250AP
CASE 867B-04
UNIBODY PACKAGE PIN NUMBERS
1
VOUT(1)
4 N/C(2)
2
GND
5 N/C(2)
3 VS 6 N/C(2)
1. Pin 1 in noted by the notch in the lead.
2. Pins 4, 5, and 6 are internal device
connections. Do not connect to external
circuitry or ground.
© Freescale Semiconductor, Inc., 2006. All rights reserved.
1 page  
Transfer Function
Nominal Transfer Value:
VOUT = VS (P × 0.004 - 0.04)
± (Pressure Error × Temp. Factor × 0.004 × VS)
VS = 5.1 V ± 0.25 VDC
Temperature Error Band
4.0
Temperature
Error
Factor
3.0
2.0
1.0
0.0
Temp
- 40
0 to 85
+125
Multiplier
3
1
3
-40 -20 0 20 40 60 80 100 120 140
Temperature in C°
NOTE: The Temperature Multiplier is a linear response from 0× to -40°C and from 85° to 125°C.
Pressure Error Band
Pressure
Error
(kPa)
5.0
4.0
3.0
2.0
1.0
0
-1.0
-2.0
-3.0
-4.0
-5.0
0 25 50 75 100 125 150 175 200 225 250
Pressure
(kPa)
Pressure
20 to 250 kPa
Error (Max)
±3.45 (kPa)
Sensors
Freescale Semiconductor
MPX4250A
5
5 Page 
NOTES
Sensors
Freescale Semiconductor
MPX4250A
11
11 Page | ||
| Páginas | Total 12 Páginas | |
| PDF Descargar | [ Datasheet MPX4250A.PDF ] | |
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