Single-chip industrial piezo driver and evaluation board
09-12-2015 |
Mouser Electronics
|
Semiconductors
The Texas Instruments (TI) DRV2700 industrial piezo driver is now available
from Mouser stock. The single-chip piezo driver features an integrated 105V
boost switch, power diode, and fully-differential amplifier.
The versatile device is capable of driving both high-voltage and low-voltage
piezoelectric loads. The input signal can be either differential or
single-ended and AC or DC coupled. The DRV2700 supports four GPIO-controlled
gains: 28.8dB, 34.8dB, 38.4dB, and 40.7dB. The boost converter architecture
does not allow the demand on the supply current to exceed the limit set by
the R(REXT) resistor which allows the user to optimize the DRV2700 circuit
for a given inductor based on the desired performance requirements.
Additionally, the boost converter is based on a hysteretic architecture to
minimize switching losses and, therefore, increase efficiency.
Also available the DRV2700EVM evaluation module (EVM) is intended for
high-voltage piezo applications typically used in industrial applications.
The differential 200Vpp output capability, as well as the 100V single ended
output, can be evaluated using this evaluation module. The available pin
breakouts in addition with the on board MSP430 allows for prototyping into
already existing systems.