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ADP3415LRMZ-REEL Datasheet(PDF) 1 Page - ON Semiconductor |
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ADP3415LRMZ-REEL Datasheet(HTML) 1 Page - ON Semiconductor |
1 / 10 page ADP3415 Dual MOSFET Driver with Bootstrapping FEATURES All-in-One Synchronous Buck Driver One PWM Signal Generates Both Drives Anticross Conduction Protection Circuitry Programmable Transition Delay Zero-Crossing Synchronous Drive Control Synchronous Override Control Undervoltage Lockout Shutdown Quiescent Current <100 A APPLICATIONS Mobile Computing CPU Core Power Converters Multiphase Desktop CPU Supplies Single-Supply Synchronous Buck Converters Standard-to-Synchronous Converter Adaptations FUNCTIONAL BLOCK DIAGRAM VCC BST DRVH SW DLY GND DRVL ADP3415 SD DRVLSD IN OVERLAP PROTECTION CIRCUIT UVLO VCC GENERAL DESCRIPTION The ADP3415 is a dual MOSFET driver optimized for driving two N-channel FETs that are the two switches in the nonisolated synchronous buck power converter topology. Each driver size is optimized for performance in notebook PC regulators for CPUs in the 20 A range. The high-side driver can be bootstrapped atop the switched node of the buck converter as needed to drive the upper switch and is designed to accommodate the high voltage slew rate associated with high performance, high frequency switching. The ADP3415 features an overlapping protection circuit (OPC); undervoltage lockout (UVLO) that holds the switches off until the driver is assured of having sufficient voltage for proper operation; a programmable transition delay; and a synchronous drive disable pin. The quiescent current, when the device is disabled, is less than 100 µA. The ADP3415 is specified over the extended commercial temperature range of 0°C to 100°C and is available in a 10-lead MSOP package. BST DRVH SW SD IN DRVLSD DLY GND DRVL ADP3415 VDCIN VOUT 5V FROM SYSTEM ENABLE CONTROL FROM DUTY RATIO MODULATOR FROM SYSTEM STATE LOGIC VCC Figure 1. Typical Application Circuit ©2010 SCILLC. All rights reserved. Publication Order Number: May 2010 - Rev. 6 ADP3415/D |
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