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PDF LV8071LP Data sheet ( Hoja de datos )
| Número de pieza | LV8071LP | |
| Descripción | Piezoelectric Actuator Driver IC | |
| Fabricantes | Sanyo Electric | |
| Logotipo |  |
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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
-0.5 to 6.0
300
-0.5 to VCC+0.5
700
-20 to +85
-55 to +150
Unit
V
mA
V
mW
°C
°C
Any and all SANYO Semiconductor Co.,Ltd. products described or contained herein are, with regard to
"standard application", intended for the use as general electronics equipment (home appliances, AV equipment,
communication device, office equipment, industrial equipment etc.). The products mentioned herein shall not be
intended for use for any "special application" (medical equipment whose purpose is to sustain life, aerospace
instrument, nuclear control device, burning appliances, transportation machine, traffic signal system, safety
equipment etc.) that shall require extremely high level of reliability and can directly threaten human lives in case
of failure or malfunction of the product or may cause harm to human bodies, nor shall they grant any guarantee
thereof. If you should intend to use our products for applications outside the standard applications of our
customer who is considering such use and/or outside the scope of our intended standard applications, please
consult with us prior to the intended use. If there is no consultation or inquiry before the intended use, our
www.DataSheet4Uc.cuosmtomer shall be solely responsible for the use.
Specifications of any and all SANYO Semiconductor Co.,Ltd. products described or contained herein stipulate
the performance, characteristics, and functions of the described products in the independent state, and are not
guarantees of the performance, characteristics, and functions of the described products as mounted in the
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
1 page  
Timing Chart (For CLK1=39MHz)
LV8071LP
EN
M/I
DRIVE
GATE A
GATE B
BUSY
∞ direction logic select
Operation stop with EN input at “L”
Macro direction logic select
8.923μs
Operation for 2 pulses = 280 cycles
Operating in the ∞ direction
Operation start at DRIVE input
280 cycles = 5.00ms
Operating in the macro direction
Returns to “H” with
“EN=L” even during operation
Enlarged view of gate signal sequence
BUSY output “H” only during operation
Operating in the ∞ direction
GATE A
GATE B
8.923μs
2.359μs
410ns
3.487μs
2.359μs
3.487μs
Operating in the macro direction
410ns
GATE A
GATE B
8.923μs
3.487μs
3.487μs
2.359μs
2.359μs
Initialization sequence at startup
Start with EN=H. Initialization sequence starts.
EN
GATE A
8.923μs
GATE B
www.DataSheet4U.com
BUSY
Operating in the ∞ direction
140 cycles × 170 = 212.3ms
Standby state
140 cycles × 4
= 5.00ms
Initialization
about 220ms
Operating in the macro direction
140 cycles × 2 = 2.50ms
“H” during initialization even in the standby state
BUSY output “H” during initialization
BUSY output “L” at end of initialization
No.A0991-5/6
5 Page | ||
| Páginas | Total 6 Páginas | |
| PDF Descargar | [ Datasheet LV8071LP.PDF ] | |
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