SiP41104

SiP41104 New Product Vishay Siliconix www.DataSheet4U.com Half-Bridge N-Channel MOSFET Driver for DC/DC Conversion FEATURES D D D D D D 5-V Gate Drive Undervoltage Lockout Internal Bootstrap Diode PWM pin tristate enable feature 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 The SiP41104 is a high-speed half-bridge MOSFET driver 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. The SiP41104 comes with adaptive shoot-through protection to prevent simultaneous conduction of the external MOSFETs. The SiP41104 is available in both standard and lead (Pb)-free 8-Pin SOIC 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 VDD BOOT OUTH SiP41104 Controller PWM LX VOUT OUTL GND GND GND Document Number: 72706 S-50265—Rev. D, 21-Feb-05 www.vishay.com 1 SiP41104 Vishay Siliconix New Product www.DataSheet4U.com ABSOLUTE MAXIMUM RATINGS (ALL VOLTAGES REFERENCED TO GND = 0 V) VDD, PWM . . . . . . . . . . ....