Want to post a buying lead? If you are not a member yet, please select the specific/related part number first and then fill the quantity and your contact details in the "Request for Quotation Form" on the left, and then click "Send RFQ".Your buying lead can then be posted, and the reliable suppliers will quote via our online message system or other channels soon.
The SiP41109 and SiP41110 are high-speed half-bridge MOSFET drivers for use in high frequency, high current, multiphase dc-to-dc synchronous rectifier buck power supplies. They are designed to operate at switching frequencies up to 1 MHz. The high-side driver is bootstrapped to allow driving n-channel MOSFETs.
They feature adaptive shoot-through protection to prevent simultaneous conduction of the external MOSFETs. There are two options available for the voltage of the high-side and low-side drivers. In the SiP41109, the regulator supplies gate drive voltage to the high-side driver and VCC supplies the low-side driver. in the SiP41110, the regulator supplies the high- and low-side gate drive voltage.
The SiP41109 and SiP41110 are assembled in a lead (Pb)-free 8-pin SOIC package for operation over the industrial operating range (−40 to 85).
Notes a. Device mounted with all leads soldered or welded to PC board. b. Derate 7.7 mW/
SIP41109 Features
· PWM With Tri-State Enable · 12-V Low-Side Gate Drive (SiP41109) · 8-V Low-Side Gate Drive (SiP41110) · Undervoltage Lockout · Internal Bootstrap Diode · Switching Frequency Up to 1 MHz · 30-ns Max Propagation Delay · Drive MOSFETs In 5- to 48-V Systems · Adaptive Shoot-Through Protection
SIP41109 Typical Application
· Multi-Phase DC/DC Conversion · High Current Low Voltage DC/DC Converters · High Frequency DC/DC Converters · Mobile and Desktop Computer DC/DC Converters · Core Voltage Supplies for PC Micro-Processors