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

device, the customer should always evaluate and test devices mounted in the customer

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.

30409 MS / 30707 MS PC 20070129-S00001 No.A0706-1/4

LA6581CL

Overview

The LA6581CL is a low-saturation BTL output linear driving motor driver for single-phase bipolar fan motors. It features

quite, low power, high efficiency drive that suppresses reactive current. It is optimum for the notebook PC, consumer

equipment power supply, car audio system, CPU cooler, etc. that require high reliability and low noise.

Functions

• Single-phase full-wave linear drive with BTL output (gain resistance 500Ω to 284kΩ, 55dB) : Suitable for the equipment

requiring silent operation, such as game equipment, CPU cooler, etc. because of its freedom from switching noise.

• Low-voltage operation possible, with wide operable voltage range (3 to 16V)

• Low saturation output (Upper + lower saturation voltage : VOsat (total) = 0.3V typ, IO = 100mA) : High coil efficiency

with low current drain. IC itself does not generate much heat.

• High impedance of Hall input pin

• FG output (rotation speed detection output : open collector output)

• Heat protection circuit : When the large current flows because of output short-circuit, raising the IC chip temperature

above 180

°C, the heat protection circuit suppresses the drive current, preventing IC burn and breakdown.

• Ultraminiature package (ECSP2828-10 : 2.8mm×2.8mm×0.8mm typ) : Small substrate while allowing larger blades.

Monolithic Linear IC

Fan Motor Driver

BTL Driver Single-Phase Full-Wave

Ordering number : ENA0706A