Vibration and Brushless Vibration Motor Characteristics

Typical Performance Characteristics

This graph actually appears on the front page of our datasheets, as it is one of the most useful. It demonstrates what kind of behaviour you can expect from the motor with relation to a change in voltage. It allows you to quickly analyse the vibration frequency and amplitude, in addition to the current and acceleration efficiency.

Remember, these results may differ from the values in the Specification sections because they are typical performance characteristics measured. It is also worth noting that these results are a function of the input voltage, not time. Therefore, whilst you can easily see the Typical Start Voltage, in this case 0.9V, you will need to refer to the table of Typical Electrical Characteristics to obtain the Typical Start Current because it is measured when starting the device at the rated voltage.

Typical Electrical Characteristics

This table expands on the Conformity Limits Specification. You will find that the results here all conform to the minimum and maximum ratings for the device, for example the Typical Vibration Amplitude will be greater than the Minimum Vibration Amplitude specification. There may also be additional important information that may not be included in the Specification, the example below includes our measurement for the Typical Maximum Terminal Inductance.

Typical Haptic Characteristics

This section is specifically aimed at aiding the design of haptic feedback systems. The response times can be an important indicator for performance, and all results are taken using the rated voltage and the inertial test load (the mass of the test sled). Vibration motors also include a Typical Active Brake Result, where the motor is running in a steady-state and the polarity of the applied voltage is reversed until the vibration amplitude drops below human detection. The tests use the value of 0.04G as the minimum force the human skin can detect.

Environmental Characteristics

Often these results are not of utmost importance, however if your design needs to be able to withstand extreme temperatures (or there’s a chance they may be stored somewhere very hot or cold) then this section can be critical.

Typical Packaging Conditions

Packaging explains how our motors are stored and delivered in large quantities. This is primarily useful for stores and production personnel.