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LA4425F-E Datasheet(PDF) 9 Page - ON Semiconductor |
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LA4425F-E Datasheet(HTML) 9 Page - ON Semiconductor |
9 / 9 page LA4425A PS No.3309-9/9 T.S.D is capable of starting operation at Tc 120 to 130 °C. When this is converted to junction temperature (Tj) according to the formula below. Tj ≈ 165C, Tj = Qjc.Pd + Tc As T.S.D operation progresses, the output pin bias voltage drops, and it becomes harder to drive the upper waveform. Therefore, the current (ICC) and power (PO) show a tendency to decrease. Proper Cares in Mounting Radiator Fin 1. The mounting torque is in the range of 1. The mounting torque is in the range of 39 to 59 N.cm. 2. The distance between screw holes of the radiator fin must coincide with the distance between screw holes of the IC. 3. The screw to be used must have a head equivalent to the one of truss machine screw or binder machine screw defined by JIS. Washers must be also used to protect the IC case. 4. No foreign matter such as cutting particles shall exist between heat sink and radiator fin. When applying grease on the junction surface, it must be applied uniformly on the whole surface. 5. Because the heat sink mounting tab and the heat sink are at the same electric potential as the chip’s GND, care must be taken when mounting the heat sink on more than one device. 6. IC lead pins are soldered to the printed circuit board after the radiator fin is mounted on the IC. 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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