IR3081A Datasheet, PDF (18/39 Pages) International Rectifier – XPHASETM VR 10 CONTROL IC

IR3081A
APPLICATION INFORMATION
12V
RVCC
10 ohm
CVCC
0.1uF
QGATE
VGATE
RGATE
DGAT E
ENABLE
VID5
VID0
VID1
VID2
VID3
VID4
0.1uF
1 _OSCDS
2
VID5
3 _VID0
4
VID1
5 _VID2
6 _VID3
7 _VID4
IR3081A
CONTROL
IC
VBIAS ²¹
20
BBFB
EAOUT ¹⁹
18
FB
VDRP ¹⁷
IIN ¹⁶
OCSET ¹⁵
ROCSET
CFB
RBBFB
RFB1 RFB
RBBDRP
RDRP1 CDRP
RCP
CCP
CCP1
RDRP
ROSC
RVDAC
CVDAC
RSHARE
POWERGOOD
VRHOT
PHASE FAULT
RBIASIN 20k
RCS-
CCS-
CCS+
RCS+
DBST
1
RMPIN+
2 _RMPIN-
3 _HOTSET
4 _VRHOT
5 _ISHARE
15
VCCH
IR3086A GATEH ¹⁴
PHASE
PGND ¹³
IC
GATEL ¹²
VCCL ¹¹
CBST
CIN
L
CSCOMP
CVCCL
RVCC
RPWMRMP
CVCC
RBIASIN 20k
RCS-
CCS-
CCS+
RCS+
DBST
CBST
CIN
1
RMPIN+
15
VCCH
2 _{RMPIN- IR3086A GATEH} 14
L
3 _{HOTSET PHASE}
PGND ¹³
IC ⁴ VRHOT
GATEL ¹²
5 _ISHARE
VCCL ¹¹
CSCOMP
CVCCL
RVCC
RPWMRMP
CVCC
RBIASIN 20k
RCS-
CCS-
CCS+
RCS+
DBST
1 _RMPIN+
2 _RMPIN-
3
HOTSET
4
VRHOT
5 _ISHARE
VCCH ¹⁵
IR3086A GATEH ¹⁴
PHASE
13
PGND
IC
12
GATEL
VCCL ¹¹
CBST
CIN
L
CSCOMP
CVCCL
RVCC
RPWMRMP
CVCC
RBIASIN 20k
RCS-
CCS-
CCS+
RCS+
DBST
1 _RMPIN+
2 _RMPIN-
3 _HOTSET
4
VRHOT
5 _ISHARE
VCCH ¹⁵
IR3086A GATEH ¹⁴
PHASE
PGND ¹³
IC
12
GATEL
VCCL ¹¹
CBST
CIN
L
CSCOMP
CVCCL
RVCC
RPWMRMP
CVCC
RBIASIN 20k
RCS-
CCS-
1 _RMPIN+
2 _RMPIN-
3 _HOTSET
4 _VRHOT
5
ISHARE
VCCH ¹⁵
IR3086A GATEH ¹⁴
PHASE
PGND ¹³
IC
GATEL ¹²
11
VCCL
CCS+
RCS+
RCS+
CBST
CSCOMP
CVCCL
RVCC
RPWMRMP
CVCC
DBST
CIN
L
RBIASIN 20k
RCS-
CCS-
1 _RMPIN+
2 _RMPIN-
3
HOTSET
4 _VRHOT
5 _ISHARE
VCCH ¹⁵
IR3086A GATEH ¹⁴
PHASE
13
PGND
IC
GATEL ¹²
VCCL ¹¹
CCS+
RCS+
RCS+
CBST
CSCOMP
CVCCL
RVCC
RPWMRMP
CVCC
DBST
CIN
L
VOUT SENSE+
DISTRIBUTION
IMPEDANCE
VOUT+
COUT
VOUT-
VOUT SENSE-
Page 18 of 39
Figure 11. IR3081A/IR3086A Six-Phase VRM/EVRD 10 Converter
1/31/05