MOSFET driver supports flexibility and high ratings

The Vishay SiP41111 half-bridge driver has high drive capabilities for fast switching of power MOSFETs operating at bootstrap supply voltages up to 75V.

Multiple converter topologies are supported, and a bootstrap diode is integrated to reduce component count and save board space.

The high bootstrap-voltage capability allows the SiP41111 to satisfy automotive duties including driving High- Intensity Discharge (HID) lamps, as well as generalpurpose applications such as motor control, power supplies and Class-D audio amplifiers. The device also operates over a wide input voltage range, from 9V to 13.2V, providing extra flexibility for use in a wide range of applications.

The SiP41111 is capable of sinking and sourcing up to 2A peak current and will drive a 1000pF load with 15ns typical rise and fall times. Combined with the fast performance of the bootstrap diode, this enables operation at up to 400kHz switching frequency.

Independent high-side and low-side drivers allow the SiP41111 to support halfbridge, two-switch forward and active-clamp forward topologies.

 

FEATURES 89V-rated bootstrap diode Supply Under-Voltage Lockout (UVLO) Independent connections to upper MOSFET Thermally-enhanced SOIC-8 PowerPAK® package option

APPLICATIONS Amplifiers Half-bridge converters Two-switch forward converters Active-clamp forward converters Bus converters Motor control

 

 

Vishay/SiP41111