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MOTOROLA
SEMICONDUCTOR TECHNICAL DATA
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Manifold Absolute Pressure Sensor On-Chip Signal Conditioned, 0.3 V to 4.9 V Output, Temperature Compensated & Calibrated
The Motorola 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. Motorola'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 Motorola MAP sensor a logical and economical choice for the automotive system designer. Features * 1.8% Maximum Error Over 0 to 85C * Specifically Designed for Intake Manifold Absolute Pressure Sensing in Engine Control Systems * Ideally Suited for Direct Microprocessor Interfacing * Patented Silicon Shear Stress Strain Gauge * Temperature Compensated Over -40 to +125C * Durable Epoxy Unibody Element * Ideal for Non-Automotive Applications, Too * Call Factory about Top Piston Fit Package Availability.
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MPX4105A SERIES
Motorola Preferred Devices
4105A: 15-105 kPa X-ducerTM SILICON PRESSURE SENSOR
CASE 867-07 Style 1
Pin Number
2 3 VS 4 5 6 Vout Ground Value 400 1000 - 40 to +125 - 40 to +125 Unit kPa kPa C C
VS 3
N/C N/C N/C
MAXIMUM RATINGS (TC = 25C unless otherwise noted)
Rating (1) (P1 > P2) Overpressure Burst Pressure(1) (P1 > P2) Storage Temperature Operating Temperature Symbol Pmax Pburst Tstg TA
NOTE: Pins 4, 5 and 6 are internal device connections. Do not connect to external circuitry or ground.
The MPX4105A series piezoresistive transducer is a state- of-the-art, monolithic, signal conditioned, silicon pressure sensor. This sensor, with its patented X-ducer, 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. A vacuum is sealed behind the sensor diaphragm providing a reliable pressure reference. Figure 1 shows a block diagram of the internal circuitry integrated on the stand-alone pressure sensing chip.
X-ducer SENSING ELEMENT
THIN FILM TEMPERATURE COMPENSATION AND GAIN STAGE #1 2 GND
GAIN STAGE #2 AND GROUND REFERENCE SHIFT CIRCUITRY
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Vout
PINS 4, 5 AND 6 ARE NO CONNECTS
Figure 1. Fully Integrated Pressure Sensor Schematic
X-ducer is a trademark of Motorola, Inc.
Preferred devices are Motorola recommended choices for future use and best overall value.
(c)Motorola Sensor Device Data Motorola, Inc. 1996
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MPX4105A SERIES
MPX4105A SERIES OPERATING CHARACTERISTICS (VS = 5.1 Vdc, TA = 25C unless otherwise noted)
Characteristic Pressure Range Supply Voltage(2) Supply Current Minimum Pressure Offset(3) Full Scale Output(4) Full Scale Span(5) Accuracy(6) Sensitivity Response Time(7) Output Source Current at Full Scale Output Warm-up Time(8) Offset Stability(9) (0 to 85C) (0 to 85C) (0 to 85C) (0 to 85C) Symbol POP VS Io Voff VFSO VFSS -- V/P tR Io+ -- -- Min 15 4.85 -- 0.184 4.804 -- -- -- -- -- -- -- Typ -- 5.1 7.0 0.306 4.896 4.590 -- 51 1.0 0.1 15 0.65 Max 105 5.35 10 0.428 4.988 -- 1.8 -- -- -- -- -- Unit kPa Vdc mAdc Vdc Vdc Vdc %VFSS mV/kPa ms mAdc ms %VFSS
MECHANICAL CHARACTERISTICS
Characteristic Weight, Basic Element (Case 867) Symbol -- Min -- Typ 4.0 Max -- Unit Grams
NOTES: 1. Exposure beyond the specified limits may cause permanent damage or degradation to the device. 2. Device is ratiometric within this specified excitation range. 3. Offset (Voff) is defined as the output voltage at the minimum rated pressure. 4. Full Scale Output (VFSO) is defined as the output voltage at the maximum or full rated pressure. 5. Full Scale Span (VFSS) is defined as the algebraic difference between the output voltage at full rated pressure and the output voltage at the minimum rated pressure. 6. Accuracy is the deviation in actual output from nominal output over the entire pressure range and temperature range as a percent of span at 25C due to all sources of error including the following: * Linearity: Output deviation from a straight line relationship with pressure over the specified pressure range. * Temperature Hysteresis: Output deviation at any temperature within the operating temperature range, after the temperature is cycled to and from the minimum or maximum operating temperature points, with minimum specified pressure applied. * Pressure Hysteresis: Output deviation at any pressure within the specified range, when this pressure is cycled to and from minimum or maximum rated pressure at 25C. * TcSpan: Span deviation per C over the temperature range of 0 to 85C, as a percent of span at 25C. * TcOffset: Output deviation per C with minimum pressure applied, over the temperature range of 0 to 85C. 7. Response Time is defined as the time for the incremental change in the output to go from 10% to 90% of its final value when subjected to a specified step change in pressure. 8. Warm-up Time is defined as the time required for the product to meet the specified output voltage. 9. Offset Stability is the product's output deviation when subjected to 1000 hours of Pulsed Pressure, Temperature Cycling with Bias Test. 10. Decoupling circuit shown in Figure 2 required to meet specification.
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Motorola Sensor Device Data
MPX4105A SERIES
MPX4105A SENSOR OUTPUT (PIN 1) 50 pF A/D
51 k
PROCESSOR
Figure 2. Recommended Decoupling Filter for Sensor to Microprocessor Interface
A fluorosilicone gel isolates the die surface and wire bonds from the environment, while allowing the pressure signal to be transmitted to the silicon diaphragm. The MPXS4105A series pressure sensor operating characteristics, internal reliability and qualification tests are based on use of dry air as the pressure media. Media other than dry air may have adverse effects on sensor performance and long-term reliability. Contact the factory for information regarding media compatibility in your application.
5.0 4.5 4.0 OUTPUT (Volts) 3.5 3.0 2.5 2.0 1.5 1.0 0.5 TRANSFER FUNCTION: Vout = Vs* (0.01*P-0.09) Error VS = 5.1 Vdc TEMP = 0 to 85C 15 kPA TO 105 kPA MPX4105A
Figure 2 shows the recommended decoupling circuit for interfacing the output of the integrated MAP sensor to the A/D input of a microprocessor (see Note 10). Figure 3 shows the sensor output signal relative to pressure input. Typical minimum and maximum output curves are shown for operation over 0 to 85C temperature range. (Output will saturate outside of the rated pressure range.)
MAX TYP
MIN
0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 Pressure (ref: to sealed vacuum) in kPa
0
Figure 3. Output versus Absolute Pressure
Motorola Sensor Device Data
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MPX4105A SERIES
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
4.0 3.0 Temperature Error Factor 2.0 1.0 0.0 -40 -20
MPX4105A Series
Break Points Temp - 40 - 20 0 to 85 125 Multiplier 3.0 1.5 1.0 2.5
0
20
40
60
80
100
120
140
Temperature in C
NOTE: The Temperature Multiplier is a linear response from -40C to -20C, -20C to 0C, and from 85C to 125C
Pressure Error Band
3.0 2.0 Pressure Error (kPa) 1.0 0.0 20 -1.0 - 2.0 Pressure - 3.0 40 to 94 (kPa) 15 (kPa) 105 (kPa) Error (Max) 1.5 (kPa) 2.4 (kPa) 1.8 (kPa) 40 60 80 100 120 Pressure (in kPa) Error Limits for Pressure
ORDERING INFORMATION The MPX4105A series MAP silicon pressure sensors are available in the basic element package that provide printed circuit board mounting ease.
Device Type Basic Element Options Absolute, Element Case No. 867-07 MPX Series Order No. MPX4105A Marking MPX4105A
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Motorola Sensor Device Data
MPX4105A SERIES
PACKAGE DIMENSIONS
C R M B -A- N
PIN 1 SEATING PLANE
1 2 3 4 5 6
NOTES: 11. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982. 12. CONTROLLING DIMENSION: INCH. 13. DIMENSION -A- DOES NOT INCLUDE MOLDED FLASH RING. MOLDED FLASH RING NOT TO EXCEED 16.00 (0.630). INCHES MIN MAX 0.595 0.620 0.514 0.534 0.200 0.220 0.027 0.033 0.048 0.064 0.100 BSC 0.014 0.016 0.695 0.725 30 _NOM 0.475 0.495 0.430 0.450 0.090 0.105 MILLIMETERS MIN MAX 15.11 15.75 13.06 13.56 5.08 5.59 0.68 0.84 1.22 1.63 2.54 BSC 0.36 0.40 17.65 18.42 30 _NOM 12.07 12.57 10.92 11.43 2.29 2.66
L
-T- G F
J S
STYLE 1: PIN 1. 2. 3. 4. 5. 6. VOUT GROUND VCC NC NC NC
D 6 PL 0.136 (0.005)
M
TA
M
DIM A B C D F G J L M N R S
CASE 867-07 ISSUE L
BASIC ELEMENT (A)
Motorola Sensor Device Data
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MPX4105A SERIES
Motorola reserves the right to make changes without further notice to any products herein. Motorola makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does Motorola assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation consequential or incidental damages. "Typical" parameters which may be provided in Motorola data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including "Typicals" must be validated for each customer application by customer's technical experts. Motorola does not convey any license under its patent rights nor the rights of others. Motorola products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other applications intended to support or sustain life, or for any other application in which the failure of the Motorola product could create a situation where personal injury or death may occur. Should Buyer purchase or use Motorola products for any such unintended or unauthorized application, Buyer shall indemnify and hold Motorola and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that Motorola was negligent regarding the design or manufacture of the part. Motorola and are registered trademarks of Motorola, Inc. Motorola, Inc. is an Equal Opportunity/Affirmative Action Employer. How to reach us: USA / EUROPE / Locations Not Listed: Motorola Literature Distribution; P.O. Box 20912; Phoenix, Arizona 85036. 1-800-441-2447 or 602-303-5454 MFAX: RMFAX0@email.sps.mot.com - TOUCHTONE 602-244-6609 INTERNET: http://Design-NET.com
JAPAN: Nippon Motorola Ltd.; Tatsumi-SPD-JLDC, 6F Seibu-Butsuryu-Center, 3-14-2 Tatsumi Koto-Ku, Tokyo 135, Japan. 03-81-3521-8315 ASIA/PACIFIC: Motorola Semiconductors H.K. Ltd.; 8B Tai Ping Industrial Park, 51 Ting Kok Road, Tai Po, N.T., Hong Kong. 852-26629298
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*MPX4105A/D*
Motorola Sensor Device Data MPX4105A/D

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