| 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. |