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| CHL8318_15 Datasheet, PDF (3/4 Pages) International Rectifier – DIGITAL MULTI-PHASE BUCK CONTROLLER | |||
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PRODUCT BRIEF
CHL8318
DIGITAL MULTI-PHASE BUCK CONTROLLER
TYPICAL APPLICATIONS
12V
Rseries
RTh
RCS
Rseries
1
RCSP
CCS
2 RCSM
+3.3V
3
30
40
VCC
4
VCPU
5 VRTN
6 SADDR/
GAMER_OFF
PWM1 32
ISEN1 55
IRTN1 56
PWM 2 33
ISEN2 53
IRTN2 54
To
CPU R_IMON
VRTN
+12V
RVIN_1
RVIN_2
RTh
RTh
RTh
7
IMON
C_IMON
CHL8318
8 RRES
PWM3 34
ISEN3 51
IRTN3 52
9 VINSEN
10 TSEN1
11 TSEN2
12 TSEN3
PWM4 35
ISEN4 49
IRTN4 50
V_VGD
12V
V_VGD
12V
V_VGD
12V
V_VGD
12V
V_VGD
From
System
13 EN
14 V18A
PWM5 36
ISEN5 47
IRTN5 48
12V
+3.3V
To
CPU
15 SALERT#
16 SDA
17 SCL
18 PSI#
19 VID7
20 VID6
21 VID5
22 VID4
23 VID3
24 VID2
25 VID1
26 VID0
27
VR_READY
28
VR_HOT
V_VGD
PWM6 37
ISEN6 45
IRTN6 46
12V
V_VGD
PWM7 38
ISEN7 43
IRTN7 44
12V
V_VGD
PWM8 39
ISEN8 41
IRTN8 42
12V
NC 31
VAR_GATE 29
GND
BOOT
Vcc HI_GATE
HVCC SWITCH
LVCC
PWM LO_GATE
MODE GND
CHL8510
BOOT
Vcc HI_GATE
HVCC SWITCH
LVCC
PWM LO_GATE
MODE GND
CHL8510
BOOT
Vcc HI_GATE
HVCC SWITCH
LVCC
PWM LO_GATE
MODE GND
CHL8510
BOOT
Vcc HI_GATE
HVCC SWITCH
LVCC
PWM LO_GATE
MODE GND
CHL8510
BOOT
Vcc HI_GATE
HVCC SWITCH
LVCC
PWM LO_GATE
MODE GND
CHL8510
BOOT
Vcc HI_GATE
HVCC SWITCH
LVCC
PWM LO_GATE
MODE GND
CHL8510
BOOT
Vcc HI_GATE
HVCC SWITCH
LVCC
PWM LO_GATE
MODE GND
CHL8510
BOOT
Vcc HI_GATE
HVCC SWITCH
LVCC
PWM LO_GATE
MODE GND
CHL8510
BOOT
Vcc HI_GATE
HVCC SWITCH
LVCC
PWM LO_GATE
MODE GND
CHL8510
V_VGD
Optional Variable
Gate Drive Circuit
V_CPU
L
O
A
D
Figure 3. 8-phase VRD using CHL8318 Controller and CHL8510 MOSFET drivers
Page 3 of 4
PB0006
Rev. 1.00, October 26, 2009
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