LV8071LP Datasheet, PDF (1/6 Pages) Sanyo Semicon Device – Piezoelectric Actuator Driver IC

Ordering number : ENA0991
LV8071LP
Bi-CMOS IC
Piezoelectric Actuator Driver IC
Overview
The LV8071LP is a piezoelectric autofocus actuator driver IC for use in cell phone cameras. It internally generates drive
waveforms, which reduces DSP load and makes it possible to control piezoelectric actuators by simple control signals.
Features
The actuator using the piezoelectric device is driven by the external CLK input and simple control signal.
• The 39MHz (CLK1 pin input) CLK input is divided into quarters internally to generate the 9.75MHz input.
The operation time is generated using this as a base CLK to ensure the output appropriate for piezoelectric drive.
The CLK2 input of 9.75MHz is input to be used, as it is, for the base CLK either.
• IC start/stop is controlled by the EN input. Initialization is made according to the built-in sequence at startup.
• The actuator drive time is determined by inputting the pulse to the DRIVE pin.
• To recognize operation/stop of the actuator, the BUSY signal is output while the OUT pin performs any output.
Specifications
Maximum Ratings at Ta = 25°C, GND = 0V
Parameter
Symbol
Conditions
Supply voltage
Output current
Input signal voltage
Allowable loss
VCC max
IO max
VIN max
Pd
Mounted on a specified board*
Operating temperature range
Topr
Storage temperature
Tstg
Note *: Mounted on a specified board: 40.0mm×50.0mm×0.8mm, glass epoxy board
Ratings
Unit
-0.5 to 6.0
V
300
mA
-0.5 to VCC+0.5
V
700
mW
-20 to +85
°C
-55 to +150
°C
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the performance, characteristics, and functions of the described products in the independent state, and are not
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customer's products or equipment. To verify symptoms and states that cannot be evaluated in an independent
device, the customer should always evaluate and test devices mounted in the customer's products or
equipment.
D1907 TI IM 20060124-S00004 No.A0991-1/6