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, analog front-end, a 16-bit microcontroller, and analog back-end circuitry, all within a robust, easy-to-seal package. The sensor offers high accuracy (+/-1.5%FSO) and provides either a ratiometric analog output or a digital SENT output. Its design ensures excellent automotive EMC performance and is qualified for demanding temperature ranges (-40C to 150C). Key advantages include factory calibration, programmability for customized curves, and advanced automotive diagnostic features such as clamping levels and broken track diagnostics. The back-side exposed sensor enhances resistance to common automotive media.
Product Attributes
- Brand: Melexis
- Certifications: Automotive qualified
- Operating Temperature Range: -40C to 150C
Technical Specifications
| Part Number | Pressure Range (bar) | Output Type | Output Voltage (V) / LSB |
|---|---|---|---|
| MLX90809LXG-EAD-000 | 0.05 to -1.05 | Analog | 0.5 to 4.5 |
| MLX90809LXG-EAD-003 | 0 to 1 | Analog | 0.5 to 4.5 |
| MLX90809LXG-EAD-007 | 0 to -1 | Analog | 0.5 to 4.5 |
| MLX90809LXG-EAD-100 | 0.05 to -1.2 | SENT | 193 to 3896 LSB |
General Electrical Specifications
| 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, +/-10mV accuracy on the programmed clamping level | 0 | 25 | %Vdd | |
| Clamp high | Clamp high | Programmable range with 9 bit resolution for the high clamping level, +/-10mV accuracy on the programmed clamping level | 50 | 100 | %Vdd | |
| Analog saturation output level high | Vsat high | Pull-up 4.7k | 97 | 100 | %Vdd | |
| Analog saturation output level low | Vsat low | Pull-up 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 |
2411220611_Melexis-MLX90809LXG-EAD-003-RE_C3263623.pdf
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