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ENA1443 Datasheet(PDF) 4 Page - ON Semiconductor

Part # ENA1443
Description  BTL Drive Single-Phase Full-Wave Fan Motor Driver
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Manufacturer  ONSEMI [ON Semiconductor]
Direct Link  http://www.onsemi.com
Logo ONSEMI - ON Semiconductor

ENA1443 Datasheet(HTML) 4 Page - ON Semiconductor

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LA6595T
PS No.A1433-4/4
Application Circuit Example
IN+
IN−
CT
OUT1
RD
VCC
OUT2
GND
H
Cr
Di
*1
R2
R2
*4
*2
*3
Circuit board mounted cpmponents
*1. If the diode Di (which protects the IC destruction by reverse connection) is used, it is necessary to insert the
capacitor Cr and provide a regenerative current route. Similarly, if there is no nearby capacitor on the fan power
supply line, Cr will also be necessary to improve reliability.
*2. If the Hall sensor bias is taken from VCC, a 1/2 VCC bias, as shown in the figure, must be used.
Linear drive is implemented by amplifying the Hall sensor output and applying voltage control to the coil. If the
Hall effect sensor provides a strong output, the startup characteristics and efficiency will be good, then even
quieter operation will be achieved by adjusting the Hall effect sensor.
*3. This pin must be left open if unused.
*4. If the line from the Hall sensor output to the Hall sensor input of IC are long, noise may enter the system from that
line. If that becomes a problem, insert a capacitor as shown in the figure.
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 ofthe
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.


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