Product Overview
The KP253 is a miniaturized Digital Barometric Air Pressure Sensor IC designed for precise barometric air pressure measurement. Utilizing a capacitive principle and surface micromachining with BiCMOS technology, it converts pressure into a 12-bit digital value and communicates via an SPI interface. The sensor also integrates a 12-bit temperature sensor. Key features include high accuracy ( 1.0 kPa), 12-bit pressure and temperature resolution, a power-down mode for reduced consumption, and self-diagnosis capabilities. Its "green" 8-pin SMD housing and automotive qualification make it suitable for advanced automotive, industrial, and consumer applications, including weather stations and altimeters.
Product Attributes
- Brand: Infineon Technologies AG
- Product Type: Digital Absolute Pressure Sensor IC
- Housing: "Green" 8-pin SMD housing (PG-DSOF-8-16)
- Certifications: Automotive qualified
- Compliance: RoHS compliant (Pb-free finish)
Technical Specifications
| Parameter | Symbol | Values | Unit | Note or Test Condition |
|---|---|---|---|---|
| Product Name | - | KP253 Digital Absolute Pressure Sensor | - | - |
| Ordering Code | - | SP001399102 | - | - |
| Package | - | PG-DSOF-8-16 | - | - |
| Pressure Sensing Accuracy | - | 1.0 | kPa | - |
| Pressure Resolution | nres_pres | 12 | bits | - |
| Temperature Resolution | nres_temp | 12 | bits | - |
| Supply Voltage (3.3V variant) | VDD3.3 | 3.135 - 3.475 | V | - |
| Supply Voltage (5.0V variant) | VDD5.0 | 4.75 - 5.25 | V | - |
| Operating Temperature | Ta | -40 - +125 | C | - |
| Ambient Operating Pressure Range | pamb | 60 - 165 | kPa | - |
| Supply Current (Typical) | IVDD | - | 10.0 | mA |
| Supply Current (Power-down) | IVDD_PD | - | 12.0 | A |
| SPI Clock Frequency | fSPI | 0.1 - 5 | MHz | - |
| Pressure Transfer Function Gain | Sp | 39 | LSB /kPa | - |
| Pressure Transfer Function Offset | offsp | -2340 | LSB | - |
| Temperature Transfer Function Gain | ST | 20.48 | LSB /C | - |
| Temperature Transfer Function Offset (VDD=3.3V) | offsT_3.3 | 839 | LSB | - |
| Temperature Transfer Function Offset (VDD=5.0V) | offsT_5.0 | 819 | LSB | - |
| Pressure Accuracy (Central Temp. Range) | accp_Tmid | -1.0 - 1.0 | kPa | 0C - 85C |
| Pressure Accuracy (Low Temp. Range) | accp_Tlow | -1.5 - 1.5 | kPa | @-20C |
| Pressure Accuracy (High Temp. Range) | accp_Thigh | -2.0 - 2.0 | kPa | @125C |
| Temperature Accuracy | accT | -5.0 - 5.0 | C | -40C - 125C |
| Maximum Input Pressure (Limited Time) | pamb_max | - | 600 | kPa |
2411220217_Infineon-KP253HP_C3254989.pdf
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