DL200 Datasheet, PDF (234/670 Pages) Motorola, Inc – Sensor

MOTOROLA
Freescale Semiconductor, Inc.
SEMICONDUCTOR TECHNICAL DATA
Integrated Silicon Pressure Sensor
Manifold Absolute Pressure Sensor
On-Chip Signal Conditioned,
Temperature Compensated
and Calibrated
The Motorola 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 Motorola sensor a logical and economical choice for the automotive system
engineer.
Features
SMALL OUTLINE PACKAGE
• 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
PORT OPTION
CASE 482
• Ideal for Non–Automotive Applications
Application Examples
• Turbo Boost Engine Control
• Ideally Suited for Microprocessor or Microcontroller–
Based Systems
PORT OPTION
CASE 482A
MPX4250A
MPXA4250A
SERIES
INTEGRATED
PRESSURE SENSOR
20 to 250 kPa (2.9 to 36.3 psi)
0.2 to 4.9 V OUTPUT
UNIBODY PACKAGE
BASIC CHIP
CARRIER ELEMENT
CASE 867, STYLE 1
PORT OPTION
CASE 867B, STYLE 1
SENSING
ELEMENT
PIN NUMBER
PIN NUMBER
VS
1
N/C
5
N/C
1
Vout
4
N/C
2
VS
6
N/C
2
Gnd
5
N/C
THIN FILM
TEMPERATURE
GAIN STAGE #2
AND
3
Gnd
7
N/C
3
VS
6
N/C
4
Vout
8
N/C
NOTE: Pins 4, 5, and 6 are internal
COMPENSATION
AND
GAIN STAGE #1
GROUND
REFERENCE
SHIFT CIRCUITRY
Vout
NOTE: Pins 1, 5, 6, and 7 are internal
device connections. Do not connect
to external circuitry or ground. Pin 1
device connections. Do not connect _{is noted by the notch in the lead.}
to external circuitry or ground. Pin 1
is noted by the notch in the lead.
PINS 4, 5, AND 6 ARE NO CONNECTS FOR
UNIBODY DEVICE
GND
PINS 1, 5, 6, 7, AND 8 ARE NO CONNECTS
FOR SMALL OUTLINE PACKAGE DEVICE
Figure 1. Fully Integrated Pressure Sensor
Schematic
REV 4
3–88
For ^wM^wo^wr^.me^oI^tn^orf^oo^lar^.m^coa^mt^/sio^emn^icO^onn^duT^ch^toi^rs^s Product, ^{Motorola Sensor Device Data}
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