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Vybronics - one of largest suppliers of cylindrical & coin vibration motors

Coin Linear Resonant Actuator LRA - picture 1

Coin Linear Vibration Motors (LRA’s)

Coin Linear Resonant Actuator LRA - for haptic feedback

Due to their fast Rise and Fall times, linear resonant actuators (LRA) vibration motors are an excellent choice for haptic / tactile feedback applications. Their simple internal construction offers high reliability and exceptionally long life when compared with brush type ERM coin vibration motors.  It should be noted that  LRA’s can not survive the high temperatures of a reflow oven and hence we do not offer a SMD reflow version.   HERE to see a cross section of a typical LRA and HERE for a comparison of LRA’s vs. Brush Type Motors.

LRA’s are unique in that they can be driven at very low voltage levels ( ~ 0.1 Vac ) with a current as low as 12 ma,  allowing engineers to tailor the vibration level to the minimum required, thus extending the devices battery life. Usability studies should to be conducted to determine the minimum acceptable  level of vibration G force for the application, and then the Haptic Driver IC programmed accordingly.

Our coin shaped linear resonant actuators oscillate along the Z axis, perpendicular to the motors surface. This Z axis vibration efficiently transmits vibrations in wearable applications. In Hi-Rel applications, they are a viable alternative to brushless vibration motors as the only internal parts that are subjected to wear / failure are the springs.         (continued below the table )

Vybronics Rectangular Lra Motor Advanced Rectangular LRA
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Part Number

Download Icon
Old P/N
(see PCN)
Image

coin motor logo
Tech.
Type
Config. Type Motor Size (mm) Voltage Current (mA) Response Time
(ms)
- 50% of power
- w/o Haptic Driver
Res.
Freq
(hz)
Vibe Force (G)
Dia Thickness Rated Operating Rated
MAX
Typical*
Avg.
Rise Time Fall Time
VG0640001D
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G0640001D VG0640001D coin vibration motor preview image LRA 4 6.0 4.05 1.8 Vac 0.5~1.8 Vac 75 58 15 70 210 0.90
VG0640002D VG0640002D coin vibration motor preview image LRA 3 6.0 4.05 1.8 Vac 0.5~1.8 Vac 75 58 15 70 210 0.90
VG0825001D G0825001D VG0825001D coin vibration motor preview image LRA 1 8.0 2.55 1.2 Vac 0.1~1.2 Vac 60 48 50 50 240 1.05
VG0825003D VG0825003D coin vibration motor preview image LRA 2 8.0 2.55 1.2 Vac 0.1~1.25 Vac 60 48 50 50 240 1.05
VG0832008 G0832008 VG0832008 coin vibration motor preview image LRA 4 8.0 3.25 1.8 Vac 0.1~1.85 Vac 80 58 50 80 235 1.80
VG0832009L VG0832009L coin vibration motor preview image LRA 2 8.0 3.25 1.8 Vac 0.1~1.85 Vac 80 58 50 80 235 1.80
VG0832012 G0832012 VG0832012 coin vibration motor preview image LRA 1 8.0 3.25 1.8 Vac 0.1~1.85 Vac 80 58 50 80 235 1.80
VG0832013D G0832013D VG0832013D coin vibration motor preview image LRA 1 8.0 3.25 1.8 Vac 0.1~1.85 Vac 80 58 50 80 235 1.80
VG0832014L
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G0832014L VG0832014L coin vibration motor preview image LRA 2 8.0 3.25 1.8 Vac 0.1~1.85 Vac 80 58 50 80 235 1.80
VG0832022D G0832022D VG0832022D coin vibration motor preview image LRA 1 8.0 3.25 1.8 Vac 0.1~1.85 Vac 80 58 50 80 235 1.80
VG0840001D
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G0840001D VG0840001D coin vibration motor preview image LRA 1 8.0 4.05 2.0 Vac 0.1~2.0 Vac 90 68 12 55 170 1.80
VG1040003D G1040003D VG1040003D coin vibration motor preview image LRA 3 10.0 4.0 2.5 Vac 0.1~2.5 Vac 170 145 10 50 170 2.00
VG2080001H
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VG2080001H coin vibration motor preview image LRA 4 20.0 8.0 1.8 Vac 1.0~2.0 Vac 200 170 20 60 130 2.50
VG2230001H
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VG2230001H coin vibration motor preview image LRA 22.0 30.0 2.0 Vac 0.1~3.0 Vac 100 95 60 100 70 > 3.5
Part Number Old P/N (see PCN) Image Tech. Type Config. Type Dia (mm) Thickness (mm) Rated (V) Operating (V) Rated MAX (mA) Typical* (mA) Rise Time (ms) Fall Time (ms) Res. Freq (hz) Vibe Force (G)
VG0640001D
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G0640001D VG0640001D coin vibration motor preview image LRA 4 6.0 4.05 1.8 Vac 0.5~1.8 Vac 75 58 15 70 210 0.90
VG0640002D VG0640002D coin vibration motor preview image LRA 3 6.0 4.05 1.8 Vac 0.5~1.8 Vac 75 58 15 70 210 0.90
VG0825001D G0825001D VG0825001D coin vibration motor preview image LRA 1 8.0 2.55 1.2 Vac 0.1~1.2 Vac 60 48 50 50 240 1.05
VG0825003D VG0825003D coin vibration motor preview image LRA 2 8.0 2.55 1.2 Vac 0.1~1.25 Vac 60 48 50 50 240 1.05
VG0832008 G0832008 VG0832008 coin vibration motor preview image LRA 4 8.0 3.25 1.8 Vac 0.1~1.85 Vac 80 58 50 80 235 1.80
VG0832009L VG0832009L coin vibration motor preview image LRA 2 8.0 3.25 1.8 Vac 0.1~1.85 Vac 80 58 50 80 235 1.80
VG0832012 G0832012 VG0832012 coin vibration motor preview image LRA 1 8.0 3.25 1.8 Vac 0.1~1.85 Vac 80 58 50 80 235 1.80
VG0832013D G0832013D VG0832013D coin vibration motor preview image LRA 1 8.0 3.25 1.8 Vac 0.1~1.85 Vac 80 58 50 80 235 1.80
VG0832014L
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G0832014L VG0832014L coin vibration motor preview image LRA 2 8.0 3.25 1.8 Vac 0.1~1.85 Vac 80 58 50 80 235 1.80
VG0832022D G0832022D VG0832022D coin vibration motor preview image LRA 1 8.0 3.25 1.8 Vac 0.1~1.85 Vac 80 58 50 80 235 1.80
VG0840001D
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G0840001D VG0840001D coin vibration motor preview image LRA 1 8.0 4.05 2.0 Vac 0.1~2.0 Vac 90 68 12 55 170 1.80
VG1040003D G1040003D VG1040003D coin vibration motor preview image LRA 3 10.0 4.0 2.5 Vac 0.1~2.5 Vac 170 145 10 50 170 2.00
VG2080001H
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VG2080001H coin vibration motor preview image LRA 4 20.0 8.0 1.8 Vac 1.0~2.0 Vac 200 170 20 60 130 2.50
VG2230001H
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VG2230001H coin vibration motor preview image LRA 22.0 30.0 2.0 Vac 0.1~3.0 Vac 100 95 60 100 70 > 3.5

The “typical current” is the average current from 20 motors selected at random from a given production lot. Copies of the test report showing the data collected for all 20 motors are available upon request.

NOTES:

  • Custom wire length are available for MOQ: 2K pcs
  • We can add connectors for MOQ: 2K pcs
  • Custom FPC’s are available for MOQ: 5K pcs.
  • Tooling and design fees will apply for custom FPC’s

Unlike conventional brush type DC vibration motors, linear resonant actuators must be driven by an AC signal at the LRA’s resonant frequency.  They can not be driven directly from a DC voltage source. The wire leads are typically different colors however the wires do not have polarity as the drive signal is AC , and not DC. 

A number of companies make Haptic IC drivers that are compatible with our  linear vibration motors.

Renesas (formerly Dialog Semiconductor) makes a full line of Haptic Drivers as well as an  evaluation board that incorporates their popular DA728x Series Haptic driver IC which may be purchased here.   Configuration files are available for our most popular  LRAs.  These files will aid engineers in quickly setting up the DA728x series for optimal performance.   

Texas Instruments makes the DRV26xxx series of Haptic Driver and supplies an evaluation board that incorporates the  TI DRV2605L haptic driver IC.

Unlike brush type ERM vibration motors, changing the amplitude of the drive voltage will only change the amplitude of the G  force, not the frequency of vibration.   Because of the LRA’s narrow band width /  High-Q, applying a frequency above or below the resonant frequency of the LRA will result in the LRA producing a lower vibration amplitude or if far from the resonant frequency, none at all.   Please note we also offer wide band LRA’s as well as LRA’s that operate on multiple resonant frequencies. 

 

 
 Config 1  WIRE  LEADS      Config 1.1 WIRE  LEAD  w.  CONNECTOR 

Coin Vibration Motors Config - WIRE LEADS

Coin Vibration Motors Config - WIRE LEAD w. CONNECTOR

We can supply this motor with a variety of
different connectors

 

 Config 2  Flexible Print Circuit    Config 3  Contact Pads for Springs / Pogo Pins

Coin Vibration Motors Config - Flexible Print Circuit

We can supply custom FPC’s for any
coin vibration motor.

Coin Vibration Motors Config - COMPRESSION SPRING MOUNT

 Config 4  BARE PCB    Config 5  Type 1 Helical Spring Contacts

Coin Vibration Motors Config - BARE PCB

Coin Vibration Motors Config - Type 1 Helical Spring Contacts

 Config 6  COMPRESSION SPRING MOUNT    Config 7  Type 2 Helical Spring Contacts

Coin Vibration Motors Config - COMPRESSION SPRING MOUNT

Coin Vibration Motors Config - Type 2 Helical Spring Contacts

 

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