MLX90809 Relative Pressure Sensor
The MLX90809 is a highly accurate, fully integrated relative pressure sensor designed for automotive and industrial applications. It features a MEMS sensing element, analog and digital circuitry, and a 16-bit microcontroller, all within a robust, easy-to-seal package. The sensor offers a ratiometric analog output or a digital SENT output, with factory calibration and programmability for customized applications. Its high accuracy (+/-1.5%FSO), wide operating temperature range (-40C to 150C), and automotive qualifications, including diagnostic features, make it suitable for demanding environments.
Product Attributes
- Brand: Melexis
- Certifications: Automotive qualified
- Material: Not specified
- Color: Not specified
Technical Specifications
| Part Number | Temperature Code | Package Code | Option Code | Pressure Range (Relative) | Output Type | Output Voltage Range |
|---|---|---|---|---|---|---|
| MLX90809L | L (-40C to 150C) | XG | EAD-000 | 0.05 to -1.05 bar | Analog | 0.5 to 4.5 V |
| MLX90809L | L (-40C to 150C) | XG | EAD-003 | 0 to 1 bar | Analog | 0.5 to 4.5 V |
| MLX90809L | L (-40C to 150C) | XG | EAD-007 | 0 to -1 bar | Analog | 0.5 to 4.5 V |
| MLX90809L | L (-40C to 150C) | XG | EAD-100 | 0.05 to -1.2 bar | SENT | 193 to 3896 LSB |
Application Examples
- Automotive: Vacuum measurement, clogged filter detection, seat lumbar cushion sensor
- Industrial: Vacuum sensor, process monitoring, fluid pressure (low pressure/high accuracy)
- Consumer/Home Appliance: Filter monitoring, dispensing/metering systems, white goods
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, 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 |
Absolute Maximum Ratings
| Parameter | Remarks | Value | Units |
|---|---|---|---|
| Supply Voltage (overvoltage) | Remark 1 | 18 | V |
| Reverse Voltage Protection | Remark 2 | -14 | V |
| Positive output voltage | Remark 1 | 18 | V |
| Reverse output voltage | Remark 1 | -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 |
Remark 1: No time limit or temperature limit for these over voltage conditions.
Remark 2: Reverse Voltage Protection at -14V at 150C for maximum 1 hour. At Room Temperature that condition can apply for maximum 24 hours.
2411220611_Melexis-MLX90809LXG-EAD-000-RE_C3263621.pdf
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