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Moteur de recherche de fiches techniques de composants électroniques |
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Moteur de recherche de fiches techniques de composants électroniques |
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FAN53418M Fiches technique(PDF) 1 Page - Fairchild Semiconductor |
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FAN53418M Fiches technique(HTML) 1 Page - Fairchild Semiconductor |
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1 / 11 page  www.fairchildsemi.com REV. 1.0.0 6/11/03 Features • Drives N-channel High-Side and Low-Side MOSFETs in a synchronous buck configuration • Internal Adaptive “Shoot-Through” Protection • High Switching Frequency (> 500kHz) – 30ns Output Rise/Fall Times w/3000pF load – 20ns Propagation Delay • 12V High-Side and 12V Low-Side Drive •OD input for Output Disable – allows for synchronization with PWM controller • SOIC-8 Package Applications • Multi-phase VRM/VRD regulators for Microprocessor Power • High Current/High Frequency DC/DC Converters • High Power Modular Power Supplies General Description The FAN53418 is a high frequency, dual MOSFET driver specifically designed to drive two power N-Channel MOSFETs in a synchronous rectified buck converter. These drivers combined with a FAN53168 Multi-Phase Buck PWM controller and power MOSFETs form a complete core voltage regulator solution for advanced microprocessors. The FAN53418 drives both the upper and lower gates in a synchronous rectifier to +12V. The upper gate drive imple- ments bootstrapping with only an external capacitor and diode required. This reduces implementation complexity and allows the use of higher performance, cost effective, N-Channel MOSFETs. The output drivers in the FAN53418 have the capacity to efficiently switch power MOSFETs at frequencies over 500kHz. Each driver is capable of driving a 3000pF load with a ~20ns propagation delay and ~30ns transition time. Adaptive shoot-through protection is integrated to prevent both MOSFETs from conducting simultaneously. Addition- ally an Output Disable function is included to synchronize the driver with the PWM controller. The FAN53418 is rated for operation from 0°C to +85°C and is available in a low-cost SOIC-8 package. FAN53418 Synchronous DC-DC MOSFET Driver Basic Application Figure 1. Basic Application Circuit FAN54318 1 2 4 3 8 7 5 6 DRVH BST IN SW PGND DRVL VCC OD D1 CBST Q2 C VCC L1 C VIN Q1 +12V |
Numéro de pièce similaire - FAN53418M |
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Description similaire - FAN53418M |
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