Product Overview
The KP229E2701 is a miniaturized Analog Manifold Air Pressure Sensor IC, utilizing a capacitive principle and surface micromachined technology with integrated BiCMOS signal conditioning. It converts pressure into a calibrated analog output signal, with a transfer function mapping 10 kPa to 300 kPa to a voltage range of 0.40 V to 4.65 V. Designed for high accuracy and sensitivity, this sensor is suitable for manifold air pressure measurement and other applications requiring precise pressure sensing across a wide temperature range. Key features include broken wire detection, clamping, and automotive qualification, making it ideal for advanced automotive, industrial, and consumer applications.
Product Attributes
- Brand: Infineon Technologies AG
- Product Type: Analog Absolute Pressure Sensor
- Technology: BiCMOS
- Housing: "Green" 8 pin SMD
- Qualification: Automotive qualified
Technical Specifications
| Product Name | Product Type | Ordering Code | Package |
|---|---|---|---|
| KP229E2701 Analog Absolute Pressure Sensor | Analog Absolute Pressure Sensor | SP000699514 | PG-DSOF-8-16 |
Key Features
- High precision pressure sensing ( 2.5 kPa)
- Ratiometric analog output
- Large temperature range (-40 C to 140 C)
- Broken wire detection
- Clamping
- Automotive qualified
Target Applications
- Automotive applications (manifold air pressure measurement)
- Industrial control
- Consumer applications
- Medical applications
- Weather stations
- Altimeters
Functional Description
- Detects pressure via capacitive surface micromachined sensor cells.
- Amplifies, temperature compensates, and linearizes the sensor cell output.
- Utilizes a third-order polynomial for linearization.
- Output is analog and ratiometric to supply voltage.
- Calibration parameters stored in integrated EPROM with error correction.
- Internal clamping of output voltage for simplified open bond detection (OBD).
- OBD aids in error and malfunction detection strategies.
Pin Configuration and Description
| Pin No. | Name | Function |
|---|---|---|
| 1 | TEST | Test pin (Digital, used during calibration/test) |
| 2 | CLOCK / VPROG | External clock for communication / programming voltage |
| 3 | DATA IN | Serial data input pin |
| 4 | DATA OUT | Serial data output pin |
| 5 | VDD | Supply voltage |
| 6 | GND | Circuit ground potential |
| 7 | VOUT | Analog pressure signal output |
| 8 | GND | Circuit ground potential |
Transfer Function
| Parameter | Symbol | Values | Unit | Note / Test Condition |
|---|---|---|---|---|
| Pressure Min | pIN,1 | 10 | kPa | Defines calibrated transfer function |
| Voltage Min | VOUT,1 | 0.40 | V | At VDD = VDD,Typ |
| Pressure Max | pIN,2 | 300 | kPa | Defines calibrated transfer function |
| Voltage Max | VOUT,2 | 4.65 | V | At VDD = VDD,Typ |
| Gain | a | 0.00293 | 1/kPa | Determined during calibration |
| Offset | b | 0.05069 | Determined during calibration | |
| Output Voltage Equation | VOUT = VDD x (a x P + b) |
Accuracy
| Parameter | Symbol | Values | Unit | Note / Test Condition |
|---|---|---|---|---|
| Pressure Accuracy (Overall) | accp | -2.5, -3.75, -3.75 | kPa | 0C up to 100 C; @ -40C; @ 140C |
| Ratiometric Error | ERAT | -25 to 25 | mV | |
| Lower Clamping Level | VCl_low | 0.3 | V | |
| Upper Clamping Level | VCl_high | 4.7 | V | |
| Clamping Level Error | VCl | -30 to 30 | mV | Accuracy of lower and upper clamping level |
Timing Properties
| Parameter | Symbol | Values | Unit | Note / Test Condition |
|---|---|---|---|---|
| Power-up Time | tUP | to 5 | ms | 90% of the final output value |
| Response Time | tR | 0.65 to 1.03 | ms | 10% to 90% of the final output value |
| Stabilization Time | tS | to 10 | ms | For full accuracy |
| Broken wire Diagnosis response time | tOBD | to 1 | ms |
Absolute Maximum Ratings
| Parameter | Symbol | Values | Unit | Note / Test Condition |
|---|---|---|---|---|
| Supply voltage | VDD_max | -0.3 to 6.5 | V | Reverse polarity; IDD < 300 mA |
| Output voltage | VOUT | -0.3 to VDD + 0.3 | V | |
| Voltage on CLOCK / VPROG pin | VCLK | to 20 | V | |
| Voltage on DATA IN & DATA_OUT pins | VDATA | to 5 | V | |
| Storage temperature | TS | -60 to 150 | C | |
| Maximum input pressure | pamb_max | 10 to 600 | kPa | Limited time: Max. 300 s |
| ESD robustness (HBM: 1.5 k, 100 pF) | VESD | to 2 | kV | According to EIA / JESD22-A114-E |
Operating Range
| Parameter | Symbol | Values | Unit | Note / Test Condition |
|---|---|---|---|---|
| Supply voltage | VDD | 4.5 to 5.5 | V | VOUT is ratiometric to VDD |
| Output current on VOUT pin | IOUT | -1 to 1 | mA | pull-down resistor used; pull-up resistor used |
| Operating temperature | Ta | -40 to 140 | C | |
| Ambient operating pressure range | pamb | 10 to 300 | kPa | |
| Lifetime | tlive | 15 | years |
Electrical Characteristics
| Parameter | Symbol | Values | Unit | Note / Test Condition |
|---|---|---|---|---|
| Output voltage range | VOUT_R | 0.10 to 4.85 | V | See also section Output Voltage versus Load |
| Supply current | IDD | 8 to 10 | mA | During power up a peak supply current of max. 22 mA is possible |
| Output referred noise | VNOISE | 1.8, 2.5 | mVRMS | Frequency < 1 kHz; Frequency > 1 kHz |
| OBD transistor on resistance | RDSON | to 160 |
Package Information
| Outline | Dimensions | Note |
|---|---|---|
| PG-DSOF-8-16 | (all dimensions in mm) | Optimized regarding external mechanical stress influences. Fulfills solder conditions for lead-free board assembly. |
Identification Code
The identification code for the KP229E2701 is located on the same side of the package as pin 8 (GND). It includes a Data Matrix Code (8 x 18 Dots, Dot Size: 0.15 mm x 0.15 mm), Date Code (B: BE Location, YY: Year, WW: Week), and Sales Code (I: KP229W, II: E2701).
2410121536_Infineon-KP229E2701XTMA1_C3253737.pdf
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