LV8491CT Datasheet, PDF (1/20 Pages) Sanyo Semicon Device – Piezo Actuator Driver IC

Ordering number : ENA1760
LV8491CT
Bi-CMOS LSI
Piezo Actuator Driver IC
Overview
The LV8491CT is a piezoelectric actuator driver IC. It internally generates drive waveforms and this makes it possible
to control piezoelectric actuators with simple instructions.
Features
• Actuators using piezoelectric elements can be driven and controlled simply by I²C communication.
• Multiple patterns of drive waveform conditions can be set for before and after performing normal operation when
executing the DRVPULSE instruction.
• The piezoelectric drive waveforms are set externally by serial input signals using the I²C interface.
The rising and falling timings are determined with clock count.
• Startup/stop of the IC is controlled by ENIN register input through I²C communication.
• The time for which the actuator is driven is determined with the drive frequency setting based on I²C communication.
• BUSY output can be used to identify the operation/stop state of the actuator while output is present at the OUT pin.
The BUSY signal can also be checked with the READ function controlled through I²C communication.
• Built-in undervoltage detection and protection circuit, and register power-on reset function.
Specifications
Absolute Maximum Ratings at Ta = 25°C, GND = 0V
Parameter
Symbol
Supply voltage
Output current
Peak output current 1
Peak output current 2
Input signal voltage
Allowable dissipation
VCC max
IO max
IO peak 1
IO peak 2
VIN max
Pd
Operating temperature
Topr
Storage temperature
Tstg
* Specified board : 40mm × 40mm × 1.6mm, glass epoxy board.
Conditions
t ≤ 1ms
t ≤ 10μs
*Mounted on a specified board.
Ratings
Unit
-0.5 to 5.0
V
300
mA
750
mA
1200
mA
-0.5 to VCC+0.5
V
350
mW
-30 to +85
°C
-55 to +125
°C
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70710 SY PC 20100517-S00002 No.A1760-1/20