SIP41101

SiP41101 New Product Vishay Siliconix Half-Bridge N-Channel MOSFET Driver With Break-Before-Make FEATURES D D D D D D D 5-V Gate Drive Undervoltage Lockout Sub 1-W Gate Drivers Internal Bootstrap Diode Drive MOSFETs In 4.5- to 30-V Systems Switching Frequency: 250 kHz to 1 MHz Synchronous Enable/Disable Option APPLICATIONS D D D D D D Multi-Phase DC/DC 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 SiP41101 is a high speed half-bridge driver, with make-before-break, for use in high frequency, high current multiphase dc-to-dc power supplies for supply voltages as high as 30 V. It is designed to operate at frequencies up to 1 MHz. The high-side driver is bootstrapped to allow driving an n-channel high-side MOSFET. The bootstrap diode is internal. The output drivers provide currents up to 4 A, allowing use of low rDS(on) power MOSFETs. The SiP41101 comes with internal break-before-make circuitry to prevent shoot-through current in the external MOSFETs. The SD control pin is provided to enable the drivers. A Synchronous Enable control pin is provided to disable the the low-side or synchronous MOSFET to maximize efficiency under low output current conditions. The SiP41101 is available in a 16-pin TSSOP package for operation over the industrial temperature range of -40 to 85_C. TYPICAL APPLICATION DIAGRAM +5 to 30 V +5...