Order this document by MPX4115/D SEMICONDUCTOR TECHNICAL DATA $"$ "##%" # " $$" " $" "##%" # " ! $ !"$%" OPERATING OVERVIEW INTEGRATED PRESSURE SENSOR 15 to 115kPa (2.18 to 16.7 psi) 0.2 to 4.8 Volts Output !#$ "$ The MPX4115 series is designed to sense absolute air pressure in an altimeter or barometer (BAP) applications. Motorola’s BAP 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 high reliability of on–chip integration makes the Motorola BAP sensor a logical and economical choice for application designers. Features • 1.5% Maximum Error over 0° to 85°C • Ideally suited for Microprocessor or Microcontroller–Based Systems BASIC CHIP CARRIER ELEMENT CASE 867–08, STYLE 1 • Patented Silicon Shear Stress Strain Gauge • Available in Absolute, Differential and Gauge Configurations • Durable Epoxy Unibody Element • Easy–to–Use Chip Carrier Option Application Examples • Altimeter • Barometer VS 3 THIN FILM TEMPERATURE COMPENSATION AND GAIN STAGE #1 X–ducer SENSING ELEMENT GAIN STAGE #2 AND GROUND REFERENCE SHIFT CIRCUITRY PORT OPTION CASE 867B–04, STYLE 1 1 Vout NOTE: Pin 1 is the notched pin. PIN NUMBER 2 PINS 4, 5 AND 6 ARE NO CONNECTS GND Figure 1. Fully Integrated Pressure Sensor Schematic 1 Vout 4 N/C 2 Grd 5 N/C 3 VS 6 N/C NOTE: Pins 4, 5, and 6 are internal device connections. Pin 1 is noted by the notch in the Lead. Do not connect to external circuitry or ground. Senseon and X–ducer are trademarks of Motorola, Inc. REV 3 Motorola Sensor Device Data Motorola, Inc. 1997 1 MAXIMUM RATINGS(1) Parametrics Overpressure(2) (P1 > P2) Burst Pressure(2) (P1 > P2) Storage Temperature Symbol Value Unit Pmax Pburst 400 kPa Tstg TA Operating Temperature 1000 kPa – 40° to +125° °C – 40° to +125° °C 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) Characteristic Pressure Range(1) Supply Voltage(2) Symbol Min Typ Max Unit POP VS 15 — 115 kPa 4.85 5.1 5.35 Vdc — 7.0 10 mAdc (0 to 85°C) Io Voff 0.135 0.204 0.273 Vdc (0 to 85°C) VFSO 4.725 4.794 4.863 Vdc Full Scale Span(5) @ VS = 5.1 Volts (0 to 85°C) VFSS — 4.59 — Vdc Accuracy(6) (0 to 85°C) — — — "1.5 Sensitivity V/P — 46 — %VFSS mV/kPa Response Time(7) tR lo+ — 1.0 — mS — 0.1 — mAdc — — 20 mSec — — "0.5 — — %VFSS Symbol Min Typ Max Unit — — 4.0 — Grams — — — 690 kPa Supply Current Minimum Pressure Offset(3) @ VS = 5.1 Volts Full Scale Output(4) @ VS = 5.1 Volts Output Source Current at Full Scale Output Warm–Up Time(8) Offset Stability(9) Decoupling circuit shown in Figure 3 required to meet electrical specifications. MECHANICAL CHARACTERISTICS Characteristic Weight, Basic Element (Case 867) Common Mode Line Pressure(10) NOTES: 1. 1.0kPa (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 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 FLUORO SILICONE GEL DIE COAT STAINLESS STEEL CAP DIE WIRE BOND LEAD FRAME MPX4115A OUPUT (PIN 1) ÉÉÉÉÉÉÉÉÉÉÉ ÉÉÉÉÉÉÉÉÉÉÉ ÉÉÉÉÉÉÉÉÉÉÉ ÉÉÉÉÉÉÉÉÉÉÉ EPOXY PLASTIC CASE P1 A/D 50 pF 51 k µ PROCESSOR DIE BOND ABSOLUTE ELEMENT P2 SEALED VACUUM REFERENCE Figure 2. Cross–Sectional Diagram (Not to Scale) Figure 3. 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 MPX4115A 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 a 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* (.009*P–.095) ± 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 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 120 0.5 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 0.009 – 0.095) Nominal Transfer Value: +/– (Pressure Error x Temp. Factor x 0.009 x VS) Nominal Transfer Value: VS = 5.1 V ± 0.25 Vdc Temperature Error Band MPX4115A 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 10 20 30 40 50 60 70 80 90 100 110 120 Pressure in kPa –3.0 – 6.0 – 9.0 Pressure Error (Max) 15 to 115 kPa ± 1.5 kPa ORDERING INFORMATION The MPX4115A BAP Sensor is 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 Only Case 867–08 MPX4115A MPX4115A Absolute, Ported Case 867B–04 MPX4115AP MPX4115AP Absolute, Stove Pipe Port Case 867E–03 MPX4115AS MPX4115A Absolute, Axial Port Case 867F–03 MPX4115ASX MPX4115A Motorola Sensor Device Data PACKAGE DIMENSIONS 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). C R POSITIVE PRESSURE (P1) M B –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) T A M 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 (A, 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 J 0.25 (0.010) M T Q G M 3 4 5 6 S PIN 1 –P– C 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, GP) 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 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 CASE 867E–03 ISSUE D PRESSURE SIDE PORTED (AS, GS) –T– C A U E –Q– N V B R PIN 1 PORT #1 POSITIVE PRESSURE (P1) –P– 0.25 (0.010) T Q M 6 M 5 4 3 2 1 S K J 0.13 (0.005) M T P S D 6 PL Q S 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 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 G STYLE 1: PIN 1. 2. 3. 4. 5. 6. F VOUT GROUND VCC V1 V2 VEX CASE 867F–03 ISSUE D PRESSURE SIDE PORTED (ASX, GSX) 6 Motorola Sensor Device Data Motorola reserves the right to make changes without further notice to any products herein. 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