LA6587FA Datasheet, PDF (1/5 Pages) ON Semiconductor – Fan Motor Driver

Ordering number : ENA2044
LA6587FA
Monolithic Linear IC
Fan Motor Driver
BTL Driver Single-Phase Full-Wave
http://onsemi.com
Overview
The LA6587FA is single-phase bipolar fan motor is driven, through BTL output linear drive, at high efficiency, low
power, and low sound by suppressing the reactive power. Lock protection, rotary signal (FG, 1/2FG) circuits are
incorporated, which 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 by BTL output (gain resistance 1kΩ-360kΩ, 51dB)
: No switching noise, which is optimum for equipment requiring silence, such as consumer equipment power supply,
car audio system, etc.
• Low-voltage operation possible, with wide operating voltage range (2.2 to 14.0V)
• Low saturation output (Upper + lower saturation voltage : VOsat (total) = 1.1Vtyp, IO = 100mA)
: High coil efficiency with low current drain. Additionally, IC itself generates only small heat.
• Built-in lock protection and automatic reset circuits
• Built-in FG & 1/2FG outputs
• Built-in Hall bias (VHB = 1.5V)
• Thermal protection circuit
: When the large current flows due to output short-circuit and the IC chip temperature exceeds 180°C, this protective
circuit suppresses the drive current to prevent burn and damage to IC.
• Extra-small package (Micro10)
Specifications
Absolute Maximum Ratings at Ta = 25°C
Parameter
Output voltage
Allowable power dissipation
Output current
Output withstand voltage
RD/FG output pin output
withstand voltage
Symbol
VCC max
Pd max
IOUT max
VOUT max
VRD/FG
max
Conditions
Mounted on a specified board*
Ratings
Unit
15
V
400
mW
0.6
A
15
V
15
V
RD/FG output current
HB output current
Operating temperature
IRD/FG max
IB max
Topr
10
mA
10
mA
-30 to +90
°C
Storage temperature
Tstg
-55 to +150
°C
* Mounted on a specified board : 20mm×10mm×0.8mm³, paper phenol
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.
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.
Semiconductor Components Industries, LLC, 2013
May, 2013
42512 SY 20120323-S00011 No.A2044-1/5