70412 SY 20120619-S00001 No.A2088-1/4

http://onsemi.com

Semiconductor Components Industries, LLC, 2013

May, 2013

LA6585FA

Overview

The LA6585FA is a single-phase bipolar fan motor driver that achieves quite operation, power savings, silent operation

and high efficiency that suppresses reactive current through BTL output linear drive. It provides lock protection and

rotation signal circuits on chip, and is optimal for applications that require high reliability and low noise, such as

notebook personal computers, power supplies in consumer electronic equipment, car audio, and CPU cooling systems.

Features

• BTL output single-phase full-wave linear drive (gain resistor : 1 to 360kΩ, 51dB)

• Supports low-voltage drive and features a wide usable voltage range (2.2 to 14.0V)

• Low saturation output (high side + low side saturation voltage : Vosat (total) = 1.2V (typical), IO = 250mA)

• Built-in lock protection and automatic return circuits

• Built-in FG output

• Built-in Hall sensor bias (VHB = 1.5V)

• Thermal protection circuit

• Small-sized, high thermal capacity package

Specifications

Absolute Maximum Ratings at Ta = 25

°C

Parameter

Symbol

Conditions

Ratings

Unit

Supply voltage

VCC max

15

V

Output current

IOUT max

0.5

A

Output voltage

VOUT max

15

V

FG output pin oiutput withstand

voltage

VFG max

15

V

FG output current

IFG max

10

mA

Allowable power dissipation

Pd max

When mounted on a circuit board *

1

400

mW

Operating temperature

Topr

-30 to +90

°C

Storage temperature

Tstg

-55 to +150

°C

*1 Specified circuit board : 114.3

Caution 1) Absolute maximum ratings represent the value which cannot be exceeded for any length of time.

Caution 2) Even when the device is used within the range of absolute maximum ratings, as a result of continuous usage under high temperature, high current,

high voltage, or drastic temperature change, the reliability of the IC may be degraded. Please contact us for the further details.

Monolithic Linear IC

BTL Drive Single-Phase Full-Wave

Fan Motor Driver

Ordering number : ENA2088

Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the Recommended Operating

Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect device reliability.