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Ordering number : ENA1515
Bi-CMOS IC
For VCMs
Constant-current Driver IC
LV8098CS
Overview
The LV8098CS is a constant current driver IC for voice coil motors that supports I
2C control integrating a digital/analog
converter (DAC). It uses an ultraminiature WLP package and includes a current detection resistor for constant current
control, which makes the IC ideal for miniaturization of camera modules intended for use in camera-equipped mobile
phones. The output transistor has a low on-resistance of 1
Ω and the resistance of the built-in current detection resistor is
1
Ω, which minimizes the voltage loss and helps withstand voltage drop in VCC. The current consumption when the DAC
is set to code 0 is 0 (ICC ≈ 0, IOUT ≈ 0) allowing reduction in current consumption.
Functions
Constant current driver for voice coil motors.
Constant current control enabled by DAC (8 bits).
I2C bus control supported.
Wide operating voltage range (2.2 to 5.0V).
The current consumption is 0 when the DAC is set to code 0.
6-pin WLP package used (1.27 × 0.87 × 0.5mm).
Built-in thermal protection circuit.
Built-in voltage drop protection circuit (VCC = 2V output off).
Low output block total-resistance of 2Ω helps withstand voltage drop in VCC. (Current detection resistance + output
transistor on-resistance).
Built-in current detection resistor.
Specifications
Absolute Maximum Ratings at Ta = 25
°C
Parameter
Symbol
Conditions
Ratings
Unit
Maximum supply voltage
VCC max
5.5
V
Output voltage
VOUT max
VCC + 0.5
V
Input voltage
VIN max
SCL, SDA, ENA
5.5
V
Allowable power dissipation
Pd max
With specified substrate *
350
mW
Operating temperature
Topr
-30 to +85
°C
Storage temperature
Tstg
-40 to +150
°C
* Specified substrate : 40mm
× 40mm × 1.6mm, Single layer glass epoxy substrate
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
'sproductsor
equipment.
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
customer shall be solely responsible for the use.
72909 SY PC 20090626-S00003 No.A1515-1/8