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Specifications
Mfr. Part #:
MXD6241AU
Key Attributes
Model Number:
MXD6241AU
Product Description
Product Overview
The MEMSIC MXD6240/6241AU is an autonomous 8-angle programmable inclination sensor designed for tip-over detection. It features a single-wire digital output, built-in self-test, and high vibration immunity, making it ideal for applications where a microcontroller is not available. Its proprietary thermal accelerometer technology ensures robustness, reliability, and high accuracy in harsh environments. The device operates from a 2.7V to 5.5V supply and is available in a compact 6-pin LCC package.
Product Attributes
- Brand: MEMSIC
- Certifications: RoHS compliant
- Origin: USA (implied by address)
Technical Specifications
| Parameter | Conditions | Min | Typ | Max | Units | Notes |
| Threshold Angles | Pin-Programmable via P2, P1, P0 | 40, 42.5, 45, 50, 55, 60, 65, 70 | Deg | |||
| Threshold Accuracy | TA = -20C to +80C | 2 | 5 | Deg | Guaranteed by design and characterization, using 4 limits. | |
| Threshold Error due to Vibration | 20g p-p @ f 25Hz | 3 | Deg | This is the incremental threshold error due to the vibration signal, applied parallel to the y axis | ||
| Threshold Error due to Vibration | 20g p-p @ f 50Hz | 0.5 | Deg | |||
| Sensor Bandwidth | 11 | Hz | The sensor has an inherent low pass filter characteristic, which is very effective in attenuating out of band vibration. | |||
| Resonance | Undetectable | Hz | The thermal accelerometer sensors use heated gas molecules, and have no measurable resonance | |||
| Shock Tolerance | 50,000 | g | ||||
| Off-Axis Tilt Range | For rated accuracy | 15 | Deg | |||
| LOW-G Lockout Threshold | 0.375 | g | The LOW-G Lockout feature disables tip-over detection if the magnitude of both X and Y acceleration vectors fall below 0.375g (as in the case of a free-fall or large off-axis tilt condition). | |||
| Supply Voltage | 2.7 | 5.5 | V | |||
| Supply Current | 0.8 | 3 | mA | |||
| Operating Temperature | -40 | 125 | C | |||
| Output Update Rate (ODR) | 2.7 | 3 | 3.3 | Hz | This is the rate at which the logic state of the OUTPUT pin is updated. The output will typically change state within 1 2 ODR cycles of a change in tip-over orientation. The above applies for Vdd = 5V. At Vdd = 2.7V, the ODR slows by ~15%. | |
| Power On Time | VDD rising edge to angle detection active | 300 | 500 | ms | ||
| Power On Reset Threshold | 0.8 | 1.2 | 1.6 | V | ||
| VDD Rise Time | 8 | ms | Maximum allowable power supply rise time from 0.25V to 2.7V (minimum). Slower VDD rise time may cause erroneous data retrieval from OTP memory at power-up. | |||
| Logic Input Low | P2, P1, P0 Inputs | 0 | 0.3*Vdd | V | ||
| Logic Input High | P2, P1, P0 Inputs | 0.7*Vdd | Vdd | V | ||
| Logic Output Low | Sinking 0.5mA | 0.1*Vdd | V | The output driver is capable of sourcing and sinking much higher currents, but it is recommended to keep the load current below 0.5mA to avoid thermal gradients which may affect the angle threshold accuracy. | ||
| Logic Output High | Sourcing 0.5mA | 0.9*Vdd | V | The output driver is capable of sourcing and sinking much higher currents, but it is recommended to keep the load current below 0.5mA to avoid thermal gradients which may affect the angle threshold accuracy. | ||
| Logic Output High-Z | After sensor fault is detected | 1 | Mohm | |||
| Supply Voltage (Absolute Maximum) | -0.5 | 7 | V | Stresses above those listed under Absolute Maximum Ratings may cause permanent damage to the device. | ||
| Storage Temperature | -40 | 150 | C | Stresses above those listed under Absolute Maximum Ratings may cause permanent damage to the device. |
2506271050_MEMSIC-MXD6241AU_C17229462.pdf
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