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© Freescale Semiconductor, Inc., 2005. All rights rerved.
I ntegrated Silicon Pressure Sensor for Manifold Absolute Pressure Applications On-Chip Signal Conditioned, Temperature Compensated and Calibrated
The Freescale MPX4101A/MPXA4101A/MPXH6101A ries Manifold Absolute Pressure (MAP) nsor for engine control is designed to n
absolute air pressure within the intake manifold. This measurement can be ud to compute the amount of fuel required for each cylinder. The small form factor and high reliability of on-chip integration makes the Freescale MAP nsor a logical and economical choice for automotive system designers.
The MPX4101A/MPXA4101A/MPXH6101A ries piezoresistive transducer is a state-of-the-art, monolithic, signal conditioned, silicon pressure nsor. This nsor combines advanced micromachining techniques, thin film metallization, and bipolar miconductor processing to provide
an accurate, high level analog output signal that is proportional to applied pressure.
Features高高在上
• 1.72% Maximum Error Over 0° to 85°C
•Specifically Designed for Intake Manifold Absolute Pressure Sensing in
Engine Control Systems
•Temperature Compensated Over –40°C to +125°C
•Durable Epoxy Unibody Element or Thermoplastic (PPS) Surface Mount Package Typical Applications
•Manifold Sensing for Automotive Systems
•Ideally Suited for Microprocessor or Microcontroller-Bad Systems •Also Ideal for Non-Automotive Applications
UNIBODY PACKAGE PIN NUMBERS (1)
1.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.
1V OUT 4N/C 2GND 5N/C 3
V S
6
N/C
SMALL OUTLINE PACKAGE
PIN NUMBERS (1)
1.Pins 1, 5, 6, 7, and 8 are internal device connections. Do not connect to external circuitry or ground. Pin 1 is noted by the notch in the lead.
SUPER SMALL OUTLINE PACKAGE
PIN NUMBERS (1)
1N/C 5N/C 1N/C 5N/C 2V S 6N/C 2V S 6N/C 3GND 7N/C 3GND 7N/C 4
V OUT
8
N/C
4拔牙作文
V OUT
8
N/C
ORDERING INFORMATION
Device Type Options Ca No.MPX Series Order No.Packing Options
Device Marking UNIBODY PACKAGE (MPX4101A SERIES)Basic Element Absolute, Element Only 867MPX4101A —
MPX4101A SMALL OUTLINE PACKAGE (MPXA4101A SERIES)Ported Element Absolute, Axial Port 482A MPXA4101AC6U Rails
MPXA4101A SUPER SMALL OUTLINE PACKAGE (MPXA6101A SERIES)Basic Element Absolute, Element Only 1317
MPXH6101A6U
Rails
MPXH6101A Absolute, Element Only 1317
MPXH6101A6T1
Tape and Reel MPXH6101A
MPX4101A MPXA4101A MPXH6101A SERIES
INTEGRATED PRESSURE SENSOR
15 TO 102 kPA (2.18 TO 14.8 psi)0.25 TO 4.95 V OUTPUT
MPX4101A Sensors
Figure 1. Temperature Compensated and Calibrated Pressure Sensor Schematic
苹果手机闹钟铃声怎么改Table 1. Maximum Ratings (1)
1. Exposure beyond the specified limits may cau permanent damage or degradation to the device.
Rating
Symbol Value Unit Maximum Pressure (P1 > P2)P MAX 400kPa Storage Temperature T STG -40 to +125°C
Operating Temperature
T A
-40 to +125
°C V S
V out
GND
Sensing Element
Pins 1, 5, 6, 7, and 8 are NO CONNECTS for small outline package devices.Pins 4, 5, and 6 are NO CONNECTS for unibody devices.
Thin Film Temperature Compensation
and Gain Stage #1
Gain Stage #2
and Ground Reference Shift Circuitry
MPX4101A
Sensors
Table 2. Operating Characteristics (V S = 5.1 Vdc, T A = 25°C unless otherwi noted, P1 > P2. Decoupling circuit shown in Figure 3 required to meet electrical specifications.)
Characteristic
Symbol Min Typ Max Unit Pressure Range (1)1. 1.0 kPa (kiloPascal) equals 0.145 psi.
业精于勤荒于嬉P OP 15—102kPa Supply Voltage (2)2.Device is ratiometric within this specified excitation range.
V S 4.85 5.1 5.35Vdc Supply Current
I o —7.010mAdc Minimum Pressure Offt @ V S = 5.1 Volts (3)(0 to 85°C)3.Offt (V off ) is defined as the output voltage at the minimum rated pressure.
V off 0.1710.2520.333Vdc Full Scale Output @ V S = 5.1 Volts (4)(0 to 85°C)4.Full Scale Output (V FSO ) is defined as the output voltage at the maximum or full rated pressure.
V FSO 4.870 4.951 5.032Vdc Full Scale Span @ V S = 5.1 Volts (5)(0 to 85°C)5.Full Scale Span (V FSS ) is defined as the algebraic difference between the output voltage at full rated pressure and the output voltage at the minimum rated pressure.V FSS — 4.7—Vdc Accuracy (6)(0 to 85°C)
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.文殊院简介
•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.•TcOfft:Output deviation with minimum rated pressure applied, over the temperature range of 0 to 85°C, relative to 25°C.•Variation from Nominal:T he variation from nominal values, for Offt or Full Scale Span, as a percent of V FSS , at 25°C.
———±1.72%V FSS Sensitivity V/P —54—-mV/kPa Respon Time (7)
7.Respon 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.t R —15—-ms Output Source Current at Full Scale Output I o+—0.1—-mAdc Warm-Up Time (8)8.Warm-up Time is defined as the time required for the product to meet the specified output voltage after the Pressure has been stabilized.——20—-ms Offt Stability (9)
9.Offt Stability is the product's output deviation when subjected to 1000 hours of Puld Pressure, Temperature Cycling with Bias Test.
—
—
±0.5
—-%V FSS
MPX4101A Sensors
ON-CHIP TEMPERATURE COMPENSATION AND CALIBRATION
Figure 2 illustrates an absolute nsing chip in the super small outline package (Ca 1317).
Figure 4 shows the nsor 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.
A fluorosilicone gel isolates the die surface and wire bonds from the environment, while allowing the pressure signal to be transmitted to the nsor diaphragm. The MPX4101A/
MPXA4101A/MPXH6101A ries pressure nsor operating characteristics, and internal reliability and qualification tests are bad on u of dry air as the pressure media. Media, other than dry air, may have adver effects on nsor
performance and long-term reliability. Contact the factory for information regarding media compatibility in your application.Figure 3 shows the recommended decoupling circuit for interfacing the output of the integrated nsor to the A/D input of a microprocessor or microcontroller. Proper decoupling of the power supply is recommended.
Figure 2. Cross Sectional Diagram SSOP (not to scale)
Figure 3. Recommended Power Supply Decoupling and
Output Filtering
Figure 4. Output versus Absolute Pressure
Fluoro Silicone Gel Die Coat
Die Stainless Steel Cap
Thermoplastic Ca
Wire Bond
Lead Frame
Absolute Element
Die Bond
Sealed Vacuum Reference
P1
V S Pin 2
+5.1 V
GND Pin 3
to ADC
念奴
100 nF
51 K
47 pF
MPXH6101A
V out Pin 4
5101520253035404550556065707580859095100105110
5.03.54.04.53.02.52.01.51.00.50
TYP
MAX
MIN
O u t p u t (V o l t s )
Pressure (ref: to aled vacuum) in kPa
Transfer Function:
V out = V s * (PX0.01059*P-0.10941) ± Error V S = 5.1 Vdc
Temperature = 0 to 85°C 20 kPa to 105 kPa MPX4101A
MPX4101A
Sensors
PRESSURE (P1)/VACUUM (P2) SIDE IDENTIFICATION TABLE
Freescale designates the two sides of the pressure nsor as the Pressure (P1) side and the Vacuum (P2) side. The Pressure (P1) side is the side containing fluorosilicone gel which protects the die from harsh media. The Freescale pressure nsor is designed to operate with positive differential pressure applied, P1 > P2.
The Pressure (P1) side may be identified by using the table below:
Nominal Transfer Value:V out = V S (P x 0.01059 - 0.10941)
± (Pressure Error x Temp. Factor x 0.01059 x V S )V S = 5.1 V ± 0.25 Vdc
Transfer Function (MPX4101A, MPXA4101A, MPXH6101A)
MPX4101A, MPXA4101A MPXH6101A SERIES
Temp
Multiplier
-
4030 to 851+125
3
Temperature in °C
时尚海报
4.03.0
2.00.0
1.0–40
–20
20
40
60
140
120
100
80
Temperature Error Factor
NOTE: The Temperature Multiplier is a linear respon from 0°C to –40°C and from 85°C to 125°C.
Temperature Error Band
Error Limits for Pressure
3.02.01.0–1.0–2.0–3.0
0.0Pressure (in kPa)
P r e s s u r e E r r o r (k P a )
Pressure Error (Max)Pressure Error Band
15 to 102 (kPa)
±1.5 (kPa)
15
3045607590105120
Part Number Ca Type
Pressure (P1)Side Identifier
MPX4101A 867Stainless Steel Cap MPXA4101AC6U 482A Side with Port Attached MPXH6101A6U 1317Stainless Steel Cap MPXH6101A6T1
1317
Stainless Steel Cap
