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L6751B Datasheet(PDF) 6 Page - STMicroelectronics

Part # L6751B
Description  Digitally controlled dual PWM for Intel VR12 and AMD SVI
PDF  58 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

L6751B Datasheet(HTML) 6 Page - STMicroelectronics

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Typical application circuit and block diagram
L6751B
6/58
Doc ID 024028 Rev 1
1
Typical application circuit and block diagram
1.1
Application circuit
Figure 1.
Typical 6-phase application circuit
HS1
LS1
L1
CHF
CDEC
R
C
BOOT
UGATE
PHASE
LGATE
PWM
VCC
EN
+12V
RG
HS2
LS2
L2
CHF
R
C
BOOT
UGATE
PHASE
LGATE
VCC
EN
+12V
RG
HS3
LS3
L3
CHF
R
C
BOOT
UGATE
PHASE
LGATE
VCC
EN
+12V
RG
HS4
LS4
L4
CHF
R
C
BOOT
UGATE
PHASE
LGATE
VCC
EN
+12V
RG
SHS
SLS
SL
CHF
BOOT
UGATE
PHASE
LGATE
PWM
VCC
EN
+12V
RG
SENDRV
SPWM
SCSP
SCSN
CS4N
CS4P
PWM4
CS3N
CS3P
PWM3
CS2N
CS2P
PWM2
CS1N
CS1P
PWM1
VR12 uP LOAD
VR12 SVID Bus
COUT
CMLCC
CSOUT
CSMLCC
GND
PWM
GND
PWM
GND
PWM
GND
GND
CDEC
CDEC
CDEC
CDEC
CF
RF
CI
RI
RFB
CP
RGND
VSEN
FB
COMP
CREF RREF
REF
CSF
RSF
CSI
RSI
RSFB
CSP
SRGND
SVSEN
SFB
SCOMP
LTB
ENDRV
IMAX / SIMAX
+12V
VDRV
BOOT / TMAX
ADDR
OSC
SOSC
+5V
VCC5 GDC
GND x2
(+PAD)
DPM1-3
VRRDY
SVRRDY
VR_RDY
SVR_RDY
VR_HOT
VR_HOT
EN
EN
IMON
ILIM
DPM4-6
TM
VCC5
NTC (NTHS0805N02N6801)
(Close to the hot spot)
ST L6751 (6+1) Reference Schematic
HS4
LS4
L4
CHF
R
C
BOOT
UGATE
PHASE
LGATE
VCC
EN
+12V
RG
PWM
GND
CDEC
HS4
LS4
L4
CHF
R
C
BOOT
UGATE
PHASE
LGATE
VCC
EN
+12V
RG
PWM
GND
CDEC
CS4N
CS4P
PWM4
CS4N
CS4P
PWM4
FBR
SFBR
SIMON
RIMON
RILIM
RSIMON
ROSC
RSOSC
STM
VCC5
NTC (NTHS0805N02N6801)
(Close to the hot spot)
TCOMP
STCOMP
CSREF
RSREF
SREF
PMBus(tm)
SMCLK
SMAL#
SMDATA
VIN
+12V
PHASE
PHASE1
AM14834v1



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