Rainbow-electronics MAX8707 Manual do Utilizador Página 18

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MAX8707
Multiphase, Fixed-Frequency Controller for
AMD Hammer CPU Core Power Supplies
18 ______________________________________________________________________________________
VROK
V
CC
FBS
GND
REF
ILIM(AVE)
ILIM(PK)
OFS
TRC
SUS
SUSV
REF
PWM1
CSN1
CSP1
PWM2
PWM3
PWM4
CRSN
CRSP
OSC
D0
D1
D2
D3
D4
VID INPUTS
DRSKP
LX1
DH1
DL1
LX2
DH2
DL2
BST2
BST1
PGND
DRHOT
PWM1
SKIP
PWM2
TSET
V
CC
AGND
SHDN
CSN2
CSP2
CSN3
CSP3
LX1
DH1
DL1
LX2
DH2
DL2
BST2
BST1
PGND
PWM1
SKIP
PWM2
TSET
V
CC
AGND
CSN4
CSP4
R
ILIMAVE1
49.9k
R
ILIMAVE2
150k
R
TRC
2.0k
R
ILIM(PK)
200k
ON
SKIP
OFF
PWM
R
OFS1
182k
R
OFS2
20k
3-LEVEL PIN
R
SUSV2
81k
R
SUSV1
120k
DPRSLPVR
VPS
CCV
TIME
GNDS
C
GNDS
1000pF
C
FBS
1000pF
R
FBS
10
PGND
R
VROK
100k
5V
5V BIAS
5V BIAS
R
CRSENSE
1.0m
L1
L2
L3
L4
(VRON)
DRHOT
SHDN
CPU REMOTE-SENSE CONNECTIONS
C
IN
C
IN
8V TO 20V
PWR INPUT
OUTPUT
(CPU CORE SUPPLY)
8V TO 20V
PWR INPUT
VRON
VRON
V
DD
V
DD
C
REF
0.22µF
R
VPS
6.49k
R
GNDS
10
C
CSN4
4700pF
C
CS4
0.22µF
C
CSN3
4700pF
C
CS3
0.22µF
C
CCV
1000pF
R
TIME
143k
R
CSP3
1.5k
R
CSP4
1.5k
N
H3
N
H4
N
L3
N
L4
R
VCC2
10
C
VCC2
1.0µF
R
TSET2
C
VDD2
4.7µF
MAX8702
C
CSN2
4700pF
C
CS2
0.22µF
R
CSP3
1.5k
C
CRS
1000pF
C
CSN1
4700pF
R
CRSN
100
R
CRSP
100
R
CSP1
1.5k
C
CS1
0.22µF
C
VCC
1.0µF
R
VCC
10
N
H1
N
H2
N
L1
N
L2
R
VCC1
10
R
TSET1
C
VCC1
1.0µF
R
DRHOT
100k
C
VDD1
4.7µF
MAX8707
SHDN
SKIP
MAX8702
Figure 1. Standard MAX8707 AMD Hammer Application Circuit
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