Order this document by MPX4250/D SEMICONDUCTOR TECHNICAL DATA $"$ # "##%" # " %$ "##%" # " ! !"$%" $ INTEGRATED PRESSURE SENSOR 20 to 250 kPa (2.9 to 36.3 psi) 0.2 to 4.9 V OUTPUT !#$ "$ The Motorola MPX4250 series Manifold Absolute Pressure (MAP) sensor for turbo boost 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 MPX4250 series sensor integrates on–chip, bipolar op amp circuitry and thin film resistor networks to provide a high level analog output signal and temperature compensation. The small form factor and reliability of on–chip integration make the Motorola MAP sensor a logical and economical choice for automotive system designers. BASIC CHIP CARRIER ELEMENT CASE 867–08, STYLE 1 Features • 1.5% 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 • Offers Reduction in Weight and Volume Compared to Existing Hybrid Modules • Durable Epoxy Unibody Element • Ideal for Non–Automotive Applications PORT OPTION CASE 867B–04, STYLE 1 Application Examples • Manifold Sensing for Automotive Systems PIN NUMBER VS 3 THIN FILM TEMPERATURE COMPENSATION AND GAIN STAGE #1 X–ducer SENSING ELEMENT 2 GAIN STAGE #2 AND GROUND REFERENCE SHIFT CIRCUITRY 1 Vout 1 Vout 4 N/C 2 Gnd 5 N/C 3 VS 6 N/C 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. PINS 4, 5 AND 6 ARE NO CONNECTS GND Figure 1. Fully Integrated Pressure Sensor Schematic Senseon and X–ducer are trademarks of Motorola, Inc. REV 2 Motorola Sensor Device Data Motorola, Inc. 1997 1 MAXIMUM RATINGS(1) Symbol Value Unit Overpressure(2) (P1 > P2) Parametrics Pmax 400 kPa Burst Pressure(2) (P1 > P2) Pburst 1000 kPa Tstg – 40 to +125 °C TA – 40 to +125 °C Storage Temperature Operating Temperature 1. TC = 25°C unless otherwise noted. 2. Exposure beyond the specified limits may cause permanent damage or degradation to the device. OPERATING CHARACTERISTICS (VS = 5.1 Vdc, TA = 25°C unless otherwise noted, P1 > P2) Symbol Min Typ Max Unit Pressure Range(1) Characteristic POP 20 — 250 kPa Supply Voltage(2) VS 4.85 5.1 5.35 Vdc Supply Current Io — 7.0 10 mAdc Minimum Pressure Offset(3) @ VS = 5.1 Volts (0 to 85°C) VFSS 4.622 4.692 4.762 Vdc Full Scale Output(4) @ VS = 5.1 Volts (0 to 85°C) VFSS 4.622 4.692 4.762 Vdc Full Scale Span(5) @ VS = 5.1 Volts (0 to 85°C) VFSS 4.622 4.692 4.762 Vdc Accuracy(6) (0 to 85°C) — — — ±1.5 %VFSS mV/kPa ∆V/∆P — 20 — Response Time(7) tR — 1.0 — ms Output Source Current at Full Scale Output lo+ — 0.1 — mAdc Warm–Up Time(8) — — 20 — ms Offset Stability(9) — — ± 0.5 — %VFSS Symbol Min Typ Max Unit Weight, Basic Element (Case 867) — — 4.0 — Grams Common Mode Line Pressure(10) — — — 690 kPa Sensitivity Decoupling circuit shown in Figure 3 required to meet electrical specifications. MECHANICAL CHARACTERISTICS Characteristics NOTES: 1. 1.0 kPa (kiloPascal) equals 0.145 psi. 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 (error budget) consists of 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 zero differential pressure applied. • Pressure Hysteresis: Output deviation at any pressure within the specified range, when this pressure is cycled to and from the minimum or maximum rated pressure, at 25°C. • TcSpan: Output deviation over the temperature range of 0° to 85°C, relative to 25°C. • TcOffset: Output deviation with minimum rated pressure applied, over the temperature range of 0° to 85°C, relative to 25°C. • Variation from Nominal: The variation from nominal values, for Offset or Full Scale Span, as a percent of VFSS, at 25°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 is defined as the time required for the product to meet the specified output voltage after the Pressure has been stabilized. 9. Offset stability is the product’s output deviation when subjected to 1000 hours of Pulsed Pressure, Temperature Cycling with Bias Test. 10. Common mode pressures beyond what is specified may result in leakage at the case–to–lead interface. 2 Motorola Sensor Device Data SILICONE DIE COAT STAINLESS STEEL METAL COVER DIE MPX4250A OUPUT (PIN 1) ÉÉÉÉÉÉÉÉÉÉÉÉ ÉÉÉÉÉÉÉÉÉÉÉÉ ÉÉÉÉÉÉÉÉÉÉÉÉ ÉÉÉÉÉÉÉÉÉÉÉÉ P1 EPOXY CASE WIRE BOND A/D 50 pF 51 k µ PROCESSOR RTV DIE BOND LEAD FRAME P2 SEALED VACUUM REFERENCE Figure 2. Cross–Sectional Diagram (Not to Scale) Figure 3. Typical Decoupling Filter for Sensor to Microprocessor Interface Figure 2 illustrates the absolute sensing chip in the basic chip carrier (Case 867). A fluorosilicone gel isolates the die surface and wire bonds from the environment, while allowing the pressure signal to be transmitted to the sensor diaphragm. The MPX4250A series pressure sensor operating characteristics, and 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 in- formation regarding media compatibility in your application. Figure 3 shows a typical decoupling circuit for interfacing the integrated MAP sensor to the A/D input of a microprocessor. Proper decoupling of the power supply is recommended. Figure 4 shows the sensor output signal relative to pressure input. Typical, minimum, and maximum output curves are shown for operation over temperature range of 0° to 85°C. (The output will saturate outside of the specified pressure range.) 5.0 4.5 OUTPUT (Volts) 4.0 3.5 TRANSFER FUNCTION: Vout = VS* (0.004 x P–0.04) ± Error VS = 5.1 Vdc TEMP = 0 to 85°C MAX TYP 3.0 2.5 2.0 1.5 MIN 1.0 0.5 0 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 170 180 190 200 210 220 230 240 250 260 0 PRESSURE (ref: to sealed vacuum) in kPa Figure 4. Output versus Absolute Pressure Motorola Sensor Device Data 3 Transfer Function Nominal Transfer Value: Vout = VS (P x 0.004 – 0.04) Nominal Transfer Value: +/– (Pressure Error x Temp. Factor x 0.004 x VS) Nominal Transfer Value: VS = 5.1 V ± 0.25 Vdc Temperature Error Band MPX4250A Series 4.0 3.0 Temperature Error Factor 2.0 Temp Multiplier – 40 0 to 85 +125 3 1 3 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 0° to –40°C and from 85° to 125°C. Pressure Error Band 9.0 Pressure Error (kPa) 6.0 3.0 25 50 75 100 125 150 175 200 225 250 Pressure in kPa –3.0 – 6.0 – 9.0 Pressure Error (Max) 20 to 250 kPa ± 3.45 (kPa) ORDERING INFORMATION The MPX4250A series Turbo MAP silicon pressure sensors are available in the basic element package or with pressure port fittings that provide mounting ease and barbed hose connections. Device Type Basic Element Ported Elements 4 Options Case No. MPX Series Order No. Marking Absolute, Element Case 867–08 MPX4250A MPX4250A Absolute, Ported Case 867B–04 MPX4250AP MPX4250AP Absolute, Stove Pipe Port Case 867E–03 MPX4250AS MPX4250A Absolute, Axial Port Case 867F–03 MPX4250ASX MPX4250A Motorola Sensor Device Data PACKAGE DIMENSIONS C R M B NOTES: 1. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982. 2. CONTROLLING DIMENSION: INCH. 3. DIMENSION –A– IS INCLUSIVE OF THE MOLD STOP RING. MOLD STOP RING NOT TO EXCEED 16.00 (0.630). POSITIVE PRESSURE (P1) –A– N PIN 1 SEATING PLANE 1 2 3 4 5 DIM A B C D F G J L M N R S L 6 –T– G J S F D 6 PL 0.136 (0.005) M T A M INCHES MIN MAX 0.595 0.630 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 STYLE 1: PIN 1. 2. 3. 4. 5. 6. CASE 867–08 ISSUE N MILLIMETERS MIN MAX 15.11 16.00 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 VOUT GROUND VCC V1 V2 VEX BASIC ELEMENT (D) –T– A U L SEATING PLANE R NOTES: 1. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982. 2. CONTROLLING DIMENSION: INCH. PORT #1 POSITIVE PRESSURE (P1) V DIM A B C D F G J K L N P Q R S U V –Q– N B K 1 PIN 1 –P– C J 0.25 (0.010) M T Q 3 4 5 6 S G M 2 F D 6 PL 0.13 (0.005) M T P CASE 867B–04 ISSUE E S Q S INCHES MIN MAX 1.145 1.175 0.685 0.715 0.305 0.325 0.027 0.033 0.048 0.064 0.100 BSC 0.014 0.016 0.695 0.725 0.290 0.300 0.420 0.440 0.153 0.159 0.153 0.159 0.230 0.250 0.220 0.240 0.910 BSC 0.182 0.194 STYLE 1: PIN 1. 2. 3. 4. 5. 6. MILLIMETERS MIN MAX 29.08 29.85 17.40 18.16 7.75 8.26 0.68 0.84 1.22 1.63 2.54 BSC 0.36 0.41 17.65 18.42 7.37 7.62 10.67 11.18 3.89 4.04 3.89 4.04 5.84 6.35 5.59 6.10 23.11 BSC 4.62 4.93 VOUT GROUND VCC V1 V2 VEX PRESSURE SIDE PORTED (AP) Motorola Sensor Device Data 5 PACKAGE DIMENSIONS – continued C –B– NOTES: 1. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982. 2. CONTROLLING DIMENSION: INCH. A DIM A B C D E F G J K N S V V PIN 1 PORT #1 POSITIVE PRESSURE (P1) 6 K 4 3 2 1 S J N 5 G F E D –T– 6 PL 0.13 (0.005) M T B M CASE 867E–03 ISSUE D INCHES MIN MAX 0.690 0.720 0.245 0.255 0.780 0.820 0.027 0.033 0.178 0.186 0.048 0.064 0.100 BSC 0.014 0.016 0.345 0.375 0.300 0.310 0.220 0.240 0.182 0.194 STYLE 1: PIN 1. 2. 3. 4. 5. 6. MILLIMETERS MIN MAX 17.53 18.28 6.22 6.48 19.81 20.82 0.69 0.84 4.52 4.72 1.22 1.63 2.54 BSC 0.36 0.41 8.76 9.53 7.62 7.87 5.59 6.10 4.62 4.93 VOUT GROUND VCC V1 V2 VEX PRESSURE SIDE PORTED (AS) –T– C A U E –Q– N V B R PIN 1 PORT #1 POSITIVE PRESSURE (P1) –P– 0.25 (0.010) M T Q 6 M 5 4 3 2 1 S K J 0.13 (0.005) M T P S D 6 PL Q S G F CASE 867F–03 ISSUE D NOTES: 1. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982. 2. CONTROLLING DIMENSION: INCH. DIM A B C D E F G J K N P Q R S U V INCHES MIN MAX 1.080 1.120 0.740 0.760 0.630 0.650 0.027 0.033 0.160 0.180 0.048 0.064 0.100 BSC 0.014 0.016 0.220 0.240 0.070 0.080 0.150 0.160 0.150 0.160 0.440 0.460 0.695 0.725 0.840 0.860 0.182 0.194 STYLE 1: PIN 1. 2. 3. 4. 5. 6. MILLIMETERS MIN MAX 27.43 28.45 18.80 19.30 16.00 16.51 0.68 0.84 4.06 4.57 1.22 1.63 2.54 BSC 0.36 0.41 5.59 6.10 1.78 2.03 3.81 4.06 3.81 4.06 11.18 11.68 17.65 18.42 21.34 21.84 4.62 4.93 VOUT GROUND VCC V1 V2 VEX PRESSURE SIDE PORTED (ASX) 6 Motorola Sensor Device Data Motorola reserves the right to make changes without further notice to any products herein. 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