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PDF LA6597FMC Data sheet ( Hoja de datos )
| Número de pieza | LA6597FMC | |
| Descripción | Single-phase Full-wave Fan Motor IC | |
| Fabricantes | ON Semiconductor | |
| Logotipo |  |
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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
1 page  
Application Circuit Examples
LA6597FMC
Di
*1
Cr
*2
R1
H
VCC
VM
HB FG
IN- OUT1
IN+ OUT2
CT GND
*4
Element in the board
*1: When Di to prevent breakdown in case of reverse connection is used, it is necessary to insert a capacitor Cr to secure
the regenerative current route. Similarly, Cr (≥0.47µF) is necessary to enhance the reliability when there is no
capacitor near the fan power line.
*2: This IC performs linear drive by amplifying the Hall output and by voltage-controlling the coil.
The Hall element is biased by means of the bias from VCC with R1 and by means of the constant voltage (VHB =
1.5V) from the HB pin. As a result, stable Hall output is obtained even at high temperatures.
*3: Heat generated in IC is dissipated by inserting the resistor RM between VCC and VM, which enables the use of the
product in the environment with high ambient temperature. Recommended RMs is as follows:
RM = 1Ω/0.5W (Ioave = 0.25A or more)
RM = 2Ω/0.5W (Ioave = 0.25A or less)
*4: Keep this open when not using.
ON Semiconductor and the ON logo are registered trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC owns the rights to a number
of patents, trademarks, copyrights, trade secrets, and other intellectual property. A listing of SCILLC’s product/patent coverage may be accessed at
www.onsemi.com/site/pdf/Patent-Marking.pdf. SCILLC reserves the right to make changes without further notice to any products herein. SCILLC makes no
warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does SCILLC assume any liability arising out of the
application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation special, consequential or incidental
damages. “Typical” parameters which may be provided in SCILLC data sheets and/or specifications can and do vary in different applications and actual
performance may vary over time. All operating parameters, including “Typicals” must be validated for each customer application by customer’s technical
experts. SCILLC does not convey any license under its patent rights nor the rights of others. SCILLC products are not designed, intended, or authorized for use
as components in systems intended for surgical implant into the body, or other applications intended to support or sustain life, or for any other application in
which the failure of the SCILLC product could create a situation where personal injury or death may occur. Should Buyer purchase or use SCILLC products for
any such unintended or unauthorized application, Buyer shall indemnify and hold SCILLC and its officers, employees, subsidiaries, affiliates, and distributors
harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or
death associated with such unintended or unauthorized use, even if such claim alleges that SCILLC was negligent regarding the design or manufacture of the
part. SCILLC is an Equal Opportunity/Affirmative Action Employer. This literature is subject to all applicable copyright laws and is not for resale in any manner.
PS No.A2073-5/5
5 Page | ||
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