SiP41103

SiP41103 New Product Vishay Siliconix www.DataSheet4U.com Half-Bridge N-Channel MOSFET Driver for DC/DC Conversion FEATURES D D D D D D D D 5-V Gate Drive Undervoltage Lockout Internal Bootstrap Diode Adaptive Shoot-Through Protection Synchronous MOSFET Disable Adjustable Highside Propagation Delay Switching Frequency Up to 1 MHz Drive MOSFETs In 4.5- to 50-V Systems Pb-free Available APPLICATIONS D D D D D D Multi-Phase DC/DC Conversion High Current Synchronous Buck Converters High Frequency Synchronous Buck Converters Asynchronous-to-Synchronous Adaptations Mobile Computer DC/DC Converters Desktop Computer DC/DC Converters DESCRIPTION SiP41103 is a high-speed half-bridge MOSFET driver with adaptive shoot-through protection for use in high frequency, high current, multiphase dc-dc synchronous rectifier buck power supplies. It is designed to operate at switching frequencies up to 1 MHz. The high-side driver is bootstrapped to allow driving n-channel MOSFETs. SiP41103 comes with adaptive shoot-through protection to prevent simultaneous conduction of the external MOSFETs. The SiP41103 is available in both standard and lead (Pb)-free 10-Pin MLP33 packages and is specified to operate over the industrial temperature range of −40 _C to 85 _C. FUNCTIONAL BLOCK DIAGRAM +5 to 50 V +5 V DELAY VDD BOOT OUTH SiP41103 PWM Controller ENSYNC LX VOUT OUTL GND GND GND Document Number: 72718 S-50265—Rev. D, 21-Feb-05 www.vishay.com 1 SiP41103 Vishay Siliconix New Product ww...