Product Overview
The Infineon KP305 is a highly reliable ISO 26262 compliant pressure sensor designed for critical automotive safety applications. It excels in detecting side crashes in passenger cars and is also suitable for other pressure-based collision detection systems like Pedestrian or Front Crash Protection. The device measures relative pressure changes (p/p0) within a sensitive air volume, providing an output proportional to the pressure variation, independent of ambient pressure. Its digital Manchester encoded output signal enables autonomous operation without additional logic ICs, making it a cost-effective solution for pressure satellites.
Product Attributes
- Brand: Infineon
- Compliance: ISO 26262, AEC-Q100
- Compatibility: AK-LV 29, AK-LV 38, AK-LV 38 addendum
- Package Type: PG-DSOF-8-164
- RoHS Compliant: Yes
Technical Specifications
| Feature | Specification | Details |
|---|---|---|
| Product Name | KP305 | ISO26262 compliant pressure sensor for side crash, pedestrian impact and front crash detection |
| Operating Modes | Mode 1 | Dynamic Range: -5% ... +15%, Sensitivity: 20.48 LSB/, p0 range: 45.5 ... 110 kPa |
| Operating Modes | Mode 2 | Dynamic Range: -15% ... +23.4%, Sensitivity: 20.48 LSB/, p0 range: 45.5 ... 140 kPa (additional time slot) |
| Operating Modes | Mode 3 | Dynamic Range: -15% ... +100%, Sensitivity: 20.48 LSB/ (slot 1) / 4.80 LSB/ (slot 2), p0 range: 45.5 ... 140 kPa (additional time slot) |
| Operating Modes | Mode 4 | Dynamic Range: -15% ... +100%, Sensitivity: 20.48 LSB/, p0 range: 45.5 ... 140 kPa (additional time slot) |
| PSI5 Interface | Protocols | PSI5-P10P-500/3L, PSI5-P10P-500/4H, PSI5-P10P-250/1L, PSI5-P10P-250/2H, PSI5-P16CRC-500/2L, PSI5-P16CRC-500/3H, PSI5-A10P-250/1L |
| Supply Voltage (VDD) | Operating Conditions | 4.5 V to 11.0 V (reduced max. VDD for triple/dual slot modes) |
| Ambient Operating Temperature | Operating Conditions | -40 C to 125 C |
| Input Pressure Range | Absolute Maximum Ratings | 10 to 600 kPa (limited time for 300 kPa) |
| Differential Pressure | Absolute Maximum Ratings | -90 to 300 kPa |
| EEPROM Programming | End-of-line programming via PSI5 interface | Supports ID number, calibration, and mode selection |
| Data Output | Digital Manchester encoded signal | Relative pressure (p/p0) |
| Functional Safety | Compliant to ISO 26262 | Features implemented for safe operation |
| Pin Configuration | DSOF-8-164 | VDDP, SCLK, SDIO, NC, CAP, VDD/VPROG, I_OUT, GND |
2505191751_Infineon-KP305XTMA1_C44217298.pdf
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