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Motorola Sensor Device Data
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The Motorola MPX4100 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
small form factor and high reliability of on–chip integration makes the Motorola MAP
sensor a logical and economical choice for automotive system designers.
Features
1.8% Maximum Error Over 0
°
to 85
°
C
Specifically Designed for Intake Manifold Absolute Pressure Sensing in Engine
Control Systems
Ideally Suited for Microprocessor Interfacing
Temperature Compensated Over –40
°
C to +125
°
C
Durable Epoxy Unibody Element
Ideal for Non–Automotive Applications
Application Examples
Manifold Sensing for Automotive Systems
Figure 1. Fully Integrated Pressure Sensor Schematic
VS
3
SENSING
ELEMENT
1
Vout
2
GND
THIN FILM
TEMPERATURE
COMPENSATION
AND
GAIN STAGE #1
GAIN STAGE #2
AND
GROUND
REFERENCE
SHIFT CIRCUITRY
PINS 4, 5 AND 6 ARE NO CONNECTS
The MPX4100 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.
SEMICONDUCTOR TECHNICAL DATA
INTEGRATED
PRESSURE SENSOR
20 to 105 kPa (2.9 to 15.2 psi)
0.3 to 4.9 V Output
PIN NUMBER
NOTE: 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.
BASIC CHIP CARRIER
ELEMENT
CASE 867–08, STYLE 1
1
2
3
Vout
Gnd
VS
4
5
6
N/C
N/C
N/C
REV 5
F
Freescale Semiconductor, Inc.
n
.