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SIC769CD Datasheet(PDF) 1 Page - Vishay Siliconix |
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SIC769CD Datasheet(HTML) 1 Page - Vishay Siliconix |
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1 / 18 page  Vishay Siliconix SiC769 Document Number: 64981 S11-0975-Rev. F, 16-May-11 www.vishay.com 1 This document is subject to change without notice. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000 Integrated DrMOS Power Stage DESCRIPTION The SiC769CD is an integrated solution that contains PWM optimized n-channel MOSFETs (high side and low side) and a full featured MOSFET driver IC. The device complies with the Intel DrMOS standard for desktop and server Vcore power stages. The SiC769CD delivers up to 35 A continuous output current and operates from an input voltage range of 3 V to 16 V. The integrated MOSFETs are optimized for output voltages in the ranges of 0.8 V to 2 V with a nominal input voltage of 12 V. The device can also deliver very high power at 5 V output for ASIC applications. The SiC769CD incorporates an advanced MOSFET gate driver IC. This IC accepts a single PWM input from the VR controller and converts it into the high side and low side MOSFET gate drive signals. The driver IC is designed to implement the skip mode (SMOD) function for light load efficiency improvement. Adaptive dead time control also works to improve efficiency at all load points. The SiC769CD has a thermal warning (THDN) that alerts the system of excessive junction temperature. The driver IC includes an enable pin, UVLO and shoot through protection. The SiC769CD is optimized for high frequency buck applications. Operating frequencies in excess of 1 MHz can easily be achieved. The SiC769CD is packaged in Vishay Siliconix high performance PowerPAK MLP6 x 6 package. Compact co-packaging of components helps to reduce stray inductance, and hence increases efficiency. • FEATURES • Integrated Gen III MOSFETs and DrMOS compliant gate driver IC • Enables Vcore switching at 1 MHz • Easily achieve > 90 % efficiency in multi-phase, low output voltage solutions • Low ringing on the VSWH pin reduces EMI • Pin compatible with DrMOS 6 x 6 version 3.0 • Tri-state PWM input function prevents negative output voltage swing • 5 V logic levels on PWM • MOSFET threshold voltage optimized for 5 V driver bias supply • Automatic skip mode operation (SMOD) for light load efficiency • Under-voltage lockout • Built-in bootstrap schottky diode • Adaptive deadtime and shoot through protection • Thermal shutdown warning flag • Low profile, thermally enhanced PowerPAK® MLP 6 x 6 40 pin package • Halogen-free according to IEC 61249-2-21 definition • Compliant to RoHS Directive 2002/95/EC APPLICATIONS • CPU and GPU core voltage regulation • Server, computer, workstation, game console, graphics boards, PC SiC769CD APPLICATION DIAGRAMM Figure 1 SiC769CD VCIN SMOD DSBL# PWM THDN PHASE VSWH BOOT VIN 5 V VO |
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