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SIC769ACD

更新时间: 2024-11-01 09:25:39
品牌 Logo 应用领域
威世 - VISHAY 服务器主板节能技术
页数 文件大小 规格书
19页 538K
描述
Integrated DrMOS Power Stage

SIC769ACD 数据手册

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SiC769ACD  
Vishay Siliconix  
Integrated DrMOS Power Stage  
FEATURES  
DESCRIPTION  
Integrated Gen III MOSFETs and DrMOS  
compliant gate driver IC  
The SiC769ACD 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 SiC769ACD 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 2.0 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 SiC769ACD 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  
SiC769ACD 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 SiC769ACD is optimized for high frequency buck  
applications. Operating frequencies in excess of 1 MHz can  
easily be achieved.  
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  
3.3 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  
The SiC769ACD 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.  
APPLICATIONS  
CPU and GPU core voltage regulation  
Server, computer, workstation, game console, graphics  
boards, PC  
SiC769ACD APPLICATION DIAGRAMM  
5 V  
VIN  
VCIN  
SMOD  
DSBL#  
PWM  
THDN  
BOOT  
VSWH  
VO  
PHASE  
SiC769ACD  
Figure 1  
Document Number: 65708  
S10-0113-Rev. B, 18-Jan-10  
www.vishay.com  
1

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