MLX90809 Relative Pressure Sensor
The MLX90809 is a fully integrated relative pressure sensor designed for automotive and industrial applications. It features a MEMS sensing element combined with analog front-end circuitry, a 16-bit microcontroller, analog back-end circuitry, and voltage regulators. The sensor offers high accuracy and a choice of ratiometric analog or digital SENT output. It is factory calibrated and programmable, with a robust package suitable for harsh automotive environments. Key advantages include high accuracy, a wide operating temperature range, automotive qualification with diagnostic features, and resistance to common automotive media.
Product Attributes
- Brand: Melexis
- Certifications: Automotive qualified
Technical Specifications
| Part Number | Pressure Range | Output Type | Temperature Range |
|---|---|---|---|
| MLX90809LXG-EAD-000 | 0.05 to -1.05 bar | 0.5 to 4.5 V analog | -40C to 150C |
| MLX90809LXG-EAD-003 | 0 to 1 bar | 0.5 to 4.5 V analog | -40C to 150C |
| MLX90809LXG-EAD-007 | 0 to -1 bar | 0.5 to 4.5 V analog | -40C to 150C |
| MLX90809LXG-EAD-100 | 0.05 to -1.2 bar | 193 to 3896 LSB SENT | -40C to 150C |
| Parameter | Symbol | Remarks | Min | Typ | Max | Units |
|---|---|---|---|---|---|---|
| Nominal supply voltage | Vdd | 4.5 | 5 | 5.5 | V | |
| Nominal supply current | Idd | No output load connected | 7 | 8 | mA | |
| Analog Output Load (Resistive) | Rload | Pull up or Pull down | 4.7 | kOhm | ||
| Analog Output Load (Capacitive) | Cload | 2.2 | 470 | nF | ||
| SENT Output Load (Capacitive) | Cload | 2.2 | nF | |||
| SENT Output Load (C-R-C) | CRCload | 1.1nF + 220Ohm + 1.1nF | ||||
| Diagnostic low | Diag low | Pull-up 4.7k Pull-down 4.7k | 3 | %Vdd | ||
| Diagnostic high | Diag high | Pull-up 4.7k Pull-down 8k | 96 | %Vdd | ||
| Clamp low | Clamp low | Programmable range with 8 bit resolution for the low clamping level, 9 for the high (for the default programmed levels see section 8), +/-10mV accuracy on the programmed clamping level | 0 | 25 | %Vdd | |
| Clamp high | Clamp high | 50 | 100 | %Vdd | ||
| Analog saturation output level high | Vsat high | Pull-up 4.7k Pull-down 4.7k Pull-down 10k | 97 | 100 | %Vdd | |
| Analog saturation output level low | Vsat low | Pull-up 4.7k Pull-down 4.7k | 0 | 3 | %Vdd | |
| Power up time | Time from reaching minimum allowed supply voltage of 4.5V till having the output within specification | 5.5 | msec |
| Parameter | Remarks | Value | Units |
|---|---|---|---|
| Supply Voltage (overvoltage) | No time limit or temperature limit for these over voltage conditions. | 18 | V |
| Reverse Voltage Protection | At -14V at 150C for maximum 1 hour. At Room Temperature that condition can apply for maximum 24 hours. | -14 | V |
| Positive output voltage | No time limit or temperature limit for these over voltage conditions. | 18 | V |
| Reverse output voltage | No time limit or temperature limit for these over voltage conditions. | -0.5 | V |
| Operating Temperature Range | -40 to 150 | C | |
| Storage Temperature Range | -40 to 150 | C | |
| Burst pressure (Room Temperature) (AEC Q100 002) | 5 | Bar |
2411220611_Melexis-MLX90809LXG-EAD-007-RE_C6305748.pdf
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