Order this document by MPX4105A/D SEMICONDUCTOR TECHNICAL DATA # $! '$!)( &'')& #'$& # % #! $# ( $# ($ )(%)( "%&()& $"%#'( ! &( Motorola Preferred Devices 4105A: 15–105 kPa X–ducer SILICON PRESSURE SENSOR 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 85°C • 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 +125°C CASE 867–07 Style 1 • Durable Epoxy Unibody Element • Ideal for Non–Automotive Applications, Too • Call Factory about Top Piston Fit Package Availability. Pin Number 1 Vout Ground MAXIMUM RATINGS (TC = 25°C unless otherwise noted) Rating (1) Overpressure (P1 > P2) Symbol Burst Pressure(1) (P1 > P2) Storage Temperature Operating Temperature 2 Value Unit Pmax 400 kPa Pburst 1000 kPa Tstg – 40 to +125 °C TA – 40 to +125 °C 3 VS 4 5 6 N/C N/C N/C NOTE: Pins 4, 5 and 6 are internal device connections. Do not connect to external circuitry or ground. VS 3 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. THIN FILM TEMPERATURE COMPENSATION AND GAIN STAGE #1 X–ducer SENSING ELEMENT 2 GAIN STAGE #2 AND GROUND REFERENCE SHIFT CIRCUITRY 1 Vout PINS 4, 5 AND 6 ARE NO CONNECTS GND 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. Sensor Motorola Motorola, Inc. 1996 Device Data 1 MPX4105A SERIES OPERATING CHARACTERISTICS (VS = 5.1 Vdc, TA = 25°C unless otherwise noted) Symbol Characteristic Pressure Range Min Typ Max Unit POP 15 — 105 kPa Supply Voltage(2) VS 4.85 5.1 5.35 Vdc Supply Current Io — 7.0 10 mAdc Minimum Pressure Offset(3) (0 to 85°C) Voff 0.184 0.306 0.428 Vdc Full Scale Output(4) (0 to 85°C) VFSO 4.804 4.896 4.988 Vdc Full Scale Span(5) (0 to 85°C) VFSS — 4.590 — Vdc Accuracy(6) (0 to 85°C) — — — ±1.8 %VFSS ∆V/∆P — 51 — mV/kPa Response Time(7) tR — 1.0 — ms Output Source Current at Full Scale Output Io+ — 0.1 — mAdc Warm–up Time(8) — — 15 — ms Offset Stability(9) — — ± 0.65 — %VFSS Symbol Min Typ Max Unit — — 4.0 — Grams Sensitivity ā MECHANICAL CHARACTERISTICS Characteristic Weight, Basic Element (Case 867) 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 25°C 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 25°C. • TcSpan: Span deviation per °C over the temperature range of 0° to 85°C, as a percent of span at 25°C. • TcOffset: Output deviation per °C with minimum pressure applied, over the temperature range of 0° to 85°C. 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. 2 Motorola Sensor Device Data MPX4105A SENSOR OUTPUT (PIN 1) 50 pF A/D 51 k µ PROCESSOR Figure 2. Recommended Decoupling Filter for Sensor to Microprocessor Interface 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 85°C temperature range. (Output will saturate outside of the rated pressure range.) 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 OUTPUT (Volts) 4.0 3.5 3.0 TRANSFER FUNCTION: Vout = Vs* (0.01*P–0.09) ± Error VS = 5.1 Vdc TEMP = 0 to 85°C 15 kPA TO 105 kPA MPX4105A MAX TYP 2.5 2.0 1.5 1.0 MIN 0 0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 0.5 Pressure (ref: to sealed vacuum) in kPa Figure 3. Output versus Absolute Pressure Motorola Sensor Device Data 3 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 4.0 Break Points 3.0 Temperature Error Factor 2.0 Temp Multiplier – 40 – 20 0 to 85 125 3.0 1.5 1.0 2.5 1.0 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 Error Limits for Pressure 3.0 Pressure Error (kPa) 2.0 1.0 0.0 20 40 60 80 100 120 Pressure (in kPa) –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) 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 4 Options Absolute, Element Case No. 867–07 MPX Series Order No. MPX4105A Marking MPX4105A Motorola Sensor Device Data PACKAGE DIMENSIONS C 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). R M B –A– N PIN 1 SEATING PLANE 1 2 3 4 5 L 6 –T– G J S F STYLE 1: PIN 1. 2. 3. 4. 5. 6. D 6 PL VOUT GROUND VCC NC NC NC 0.136 (0.005) M T A M DIM A B C D F G J L M N R S 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 CASE 867–07 ISSUE L BASIC ELEMENT (A) Motorola Sensor Device Data 5 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. 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