SIC762CD Datasheet, PDF (1/18 Pages) Vishay Siliconix – Integrated DrMOS Power Stage

Integrated DrMOS Power Stage
SiC762CD
Vishay Siliconix
DESCRIPTION
The SiC762CD 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 V_core power
stages. The SiC762CD delivers up to 35 A continuous output
current and operates from an input voltage range of 3 V to
27 V. The integrated MOSFETs are optimized for output
voltages in the ranges of 0.8 V to 2.0 V with a nominal input
voltage of 24 V. The device can also deliver very high power
at 5 V output for ASIC applications.
The SiC762CD incorporates an advanced MOSFET gate
driver IC. This IC accepts a single PWM input from the V_R
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 SiC762CD
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 SiC762CD is optimized for high frequency buck
applications. Operating frequencies in excess of 1 MHz can
easily be achieved.
The SiC762CD 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.
SIC762CD APPLICATION DIAGRAMM
5V
• FEATURES
• Integrated Gen III MOSFETs and DrMOS
compliant gate driver IC
• Enables V_core 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
VIN
VCIN
SMOD
DSBL#
PWM
THDN
BOOT
V_SWH
VO
PHASE
SiC762CD
Document Number: 65727
S10-0275-Rev. A, 08-Feb-10
Figure 1
www.vishay.com
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