Siliconix Unveils SiP41101/41103/41104/41105/42101 ICs
Siliconix Inc. (Santa Clara, CA), a subsidiary of Vishay Intertechnology Inc. (Malvern, PA), announced four new high-speed, half-bridge, n-channel MOSFET driver ICs designed for use in high-frequency, high-current, single- and multi-phase, dc-dc switching power supplies, including one driver with a brake for brushless motor control applications.
The new SiP41103, SiP41104 and SiP41105 dual MOSFET drivers, which drive both the lower and upper MOSFETs in a half-bridge configuration, work in systems with supply voltages from 4.5 V up to 50 V. Designed to supply output currents up to 1 A, the three drivers operate at switching frequencies of 250 kHz to 1 MHz with a driver impedance of less than 1 Ω, allowing for reduced capacitor and inductor size. The new SiP42101, which is equipped with a brake function for motor drive applications, operates at 50 kHz.
All four new MOSFET drivers are available in both standard and lead-free packages. The SiP42101 and SiP41103 have an MLP33-10 package, while the SiP41104 has an SO-8 package and the SiP41105 a TSSOP-16 PowerPAK. They are rated for operation over the -40 °C to +85 °C industrial temperature range for high-current, synchronous buck (step-down) converter; multiphase dc-to-dc converter, asynchronous-to-synchronous adaptation, and computer dc-dc converter applications.
Samples and production quantities of the SiP42101, SiP41103, SiP41104 and SiP41105 are available now, with lead times of 8 to 10 weeks for larger orders. Pricing in 1000-piece quantities is $1.96 for the SiP41101 and $1.83 for the SiP41103, SiP41104, SiP41105 and SiP42101.
