LA6597FMC Datasheet, PDF (1/5 Pages) ON Semiconductor – Single-phase Full-wave Fan Motor IC

Ordering number : ENA2073
LA6597FMC
Monolithic Linear IC
Single-phase Full-wave
Fan Motor IC
http://onsemi.com
Overview
The LA6597FMC drives the single-phase bipolar fan motor by means of the BTL output linear drive highly efficiently
while suppressing the reactive current, in the power-saving and silent manner. With incorporated lock protection and
lock signal circuits, this product is optimum for fans of car audio, projector, and VGA card where the high-temperature
operation, high reliability, and low noise are required.
Functions
• Single-phase full-wave linear drive by BTL output (gain resistance 1k to 240k, 48dB)
: No switching noise, which is optimum for equipment requiring silent operation of the projector and car audio.
• Operable at low voltage and over a wide operation voltage range (2.2 to 14.0V)
• Low saturation output (Upper + lower saturation voltages: VOsat (total) = 1.1V typ, IO = 200mA)
: High coil efficiency and small current drain. Small heat generation from IC itself
• Diffusion of generated heat
: Connection of external resistor between VM and VCC enables reduction of heat generation of IC itself.
(Upper side + lower side saturation voltage: Vosat (total) = 0.85Vtyp, IO = 300mA, RM = 1Ω)
• Lock protection and automatic return circuits incorporated
• FG output (Rotation detection output: Open collector output)
• Hall bias incorporated (VHB = 1.55V)
• Heat protection circuit
:The heat protection circuit suppresses the drive current to prevent burn or damage of IC when the large current flows
due to output short-circuit and the IC chip temperature exceeds 180°C.
• Small package with high heat capacity
Specifications
Absolute Maximum Ratings at Ta = 25°C
Parameter
Symbol
Conditions
Ratings
Unit
Supply voltage
Output current
Output withstand voltage
Output withstand voltage of
FG output pin
FG output current
HB output current
Allowable dissipation
VCC max
IOUT max
VOUT max
VFG max
IFG max
IHB max
Pd max
Mounted on a specified board. *
15
V
1.0
A
15
V
15
V
5
mA
10
mA
750 mW
Operating temperature
Topr
-30 to +110
°C
Storage temperature
Tstg
-55 to +150
°C
* Mounted on a specified board: 114.3×76.1×1.6 mm³, glass epoxy board.
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
60612 SY 20120326-S00008 No.A2073-1/5