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PDF SIC769ACD Data sheet ( Hoja de datos )
| Número de pieza | SIC769ACD | |
| Descripción | Integrated DrMOS Power Stage | |
| Fabricantes | Vishay Siliconix | |
| Logotipo |  |
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Integrated DrMOS Power Stage
SiC769ACD
Vishay Siliconix
DESCRIPTION
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.
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.
SiC769ACD APPLICATION DIAGRAMM
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
• 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
www.DataSheet.net/
APPLICATIONS
• CPU and GPU core voltage regulation
• Server, computer, workstation, game console, graphics
boards, PC
5 V VIN
VCIN
SMOD
DSBL#
PWM
THDN
SiC769ACD
BOOT
VSWH
PHASE
VO
Document Number: 65708
S10-0113-Rev. B, 18-Jan-10
Figure 1
www.vishay.com
1
Datasheet pdf - http://www.DataSheet4U.co.kr/
1 page  
SiC769ACD BLOCK DIAGRAM
VCIN
UVLO
DSBL#
THDN
PWM
SMOD
Thermal
Warning
Tristate
PWM
CGND
SiC769ACD
Vishay Siliconix
VDRV
GH
VIN
BOOT
AST CNTL
DCM DETECT
PHASE
VSWH
Figure 2
PGND
GL
www.DataSheet.net/
Document Number: 65708
S10-0113-Rev. B, 18-Jan-10
www.vishay.com
5
Datasheet pdf - http://www.DataSheet4U.co.kr/
5 Page 
ELECTRICAL CHARACTERISTICS
2.5
2.3
2.1
1.9
1.7
1.5
1.3
1.1
0.9
0.7
0.5
4.7 4.8 4.9 5.0 5.1 5.2 5.3 5.4 5.5 5.6
VCIN (V)
DSBL Falling Threshold vs. VCIN
2.5
2.3
2.1
1.9
1.7
1.5
1.3
1.1
0.9
0.7
0.5
4.7 4.8 4.9 5.0 5.1 5.2 5.3 5.4 5.5 5.6
VCIN (V)
SMOD Falling Threshold vs. VCIN
1.20
1.15
1.10
1.05
1.00
0.95
0.90
4.7 4.8 4.9 5.0 5.1 5.2 5.3 5.4 5.5 5.6
VCIN (V)
PWM Falling Threshold vs. VCIN
Document Number: 65708
S10-0113-Rev. B, 18-Jan-10
www.DataSheet.net/
SiC769ACD
Vishay Siliconix
2.5
2.3
2.1
1.9
1.7
1.5
1.3
1.1
0.9
0.7
0.5
4.7 4.8 4.9 5.0 5.1 5.2 5.3 5.4 5.5 5.6
VCIN (V)
DSBL Rising Threshold vs. VCIN
2.5
2.3
2.1
1.9
1.7
1.5
1.3
1.1
0.9
0.7
0.5
4.7 4.8 4.9 5.0 5.1 5.2 5.3 5.4 5.5 5.6
VCIN (V)
SMOD Rising Threshold vs. VCIN
2.6
2.4
2.2
2.0
1.8
1.6
1.4
1.2
1.0
4.7 4.8 4.9 5.0 5.1 5.2 5.3 5.4 5.5 5.6
VCIN (V)
PWM Rising Threshold vs. VCIN
www.vishay.com
11
Datasheet pdf - http://www.DataSheet4U.co.kr/
11 Page | ||
| Páginas | Total 19 Páginas | |
| PDF Descargar | [ Datasheet SIC769ACD.PDF ] | |
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