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ADP3414JR Arkusz danych(PDF) 1 Page - Analog Devices |
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ADP3414JR Arkusz danych(HTML) 1 Page - Analog Devices |
1 / 8 page REV. 0 Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other rights of third parties that may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. a ADP3414 One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 781/329-4700 www.analog.com Fax: 781/326-8703 © Analog Devices, Inc., 2001 Dual Bootstrapped MOSFET Driver FUNCTIONAL BLOCK DIAGRAM IN VCC OVERLAP PROTECTION CIRCUIT BST DRVH SW DRVL PGND ADP3414 FEATURES All-In-One Synchronous Buck Driver Bootstrapped High-Side Drive One PWM Signal Generates Both Drives Anticross-Conduction Protection Circuitry Pulse-by-Pulse Disable Control APPLICATIONS Mobile Computing CPU Core Power Converters Multiphase Desktop CPU Supplies Single-Supply Synchronous Buck Converters Standard-to-Synchronous Converter Adaptations GENERAL DESCRIPTION The ADP3414 is a dual MOSFET driver optimized for driving two N-channel MOSFETs which are the two switches in a nonisolated synchronous buck power converter. Each of the drivers is capable of driving a 3000 pF load with a 20 ns propa- gation delay and a 30 ns transition time. One of the drivers can be bootstrapped, and is designed to handle the high-voltage slew rate associated with “floating” high-side gate drivers. The ADP3414 includes overlapping drive protection (ODP) to prevent shoot-through current in the external MOSFETs. The ADP3414 is specified over the commercial temperature range of 0 °C to 70°C and is available in an 8-lead SOIC package. IN VCC ADP3414 BST DRVH SW DRVL PGND DELAY 1V +1V 12V CBST 7V Q1 Q2 D1 Figure 1. General Application Circuit |
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