SiP41108

SiP41108 New Product Vishay Siliconix www.DataSheet4U.com Half-Bridge N-Channel Programmable 1-A MOSFET Driver for DC/DC Conversion with Adjustable High Side Propagation Delay FEATURES D D D D D D D D D 8-V or 12-V Low-Side Gate Drive Undervoltage Lockout Internal Bootstrap Diode Adaptive Shoot-Through Protection Synchronous MOSFET Disable Shutdown Control Adjustable High-Side Propagation Delay Switching Frequency Up to 1 MHz Drive MOSFETs In 5- to 48-V Systems 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 SiP41108 is a high-speed half-bridge MOSFET driver with adaptive shoot-through protection for use in high frequency, high current, multiphase dc-to-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. SiP41108 comes with adaptive shoot-through protection to prevent simultaneous conduction of the external MOSFETs. The high-side turn on delay is programmable via an external capacitor. The 8-V regulator sets the high-side gate drive. The low-side driver supply, PVDD, must be externally connected to either VDRV or VDD for 8-V or 12-V gate drive respectively. The SiP41108 is assembled in a lead (Pb)-free PowerPAKr TSSOP-16 package and is s...