IR3087 Datasheet, PDF (14/35 Pages) International Rectifier – XPHASE PHASE IC WITH OPTI-PHASE, OVP, AND OVERTEMP DETECT

IR3087
APPLICATIONS INFORMATION
12V
RVCC
10 ohm
CVCC
0. 1uF
QGATE
VGATE
RGATE
DGA T 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
BBFB ²⁰
19
EAOUT
FB ¹⁸
17
VDRP
IIN ¹⁶
OCSET ¹⁵
ROCSET
CFB
RBBFB
RFB1 RFB
RBBDRP
RDRP1 CDRP
RCP
CCP
CCP1
RDRP
ROSC
RVDAC
CVDAC
RSHARE
POWERGOOD
VRHOT
RBIASIN 20k
RCS-
CCS-
CCS+
RCS+
DBST
1 _RMPIN+
2 _RMPIN-
3 _HOTSET
4 _VRHOT
5 _ISHARE
IR3087
PHASE
IC
VCCH ¹⁵
GATEH ¹⁴
PGND ¹³
GATEL ¹²
VCCL ¹¹
CBST
CIN
L
CSCOMP
CVCCL
RVCC
RPWMRMP
CVCC
ROP21
ROP22
RBIASIN 20k
RCS-
CCS-
CCS+
RCS+
DBST
1 _RMPIN+
2
RMPIN-
3 _HOTSET
4 _VRHOT
5 _ISHARE
IR3087
PHASE
IC
VCCH ¹⁵
14
GATEH
PGND ¹³
GATEL ¹²
VCCL ¹¹
CBST
CIN
L
CSCOMP
CVCCL
RVCC
RPWMRMP
CVCC
ROP31
ROP32
RBIASIN 20k
RCS-
CCS-
CCS+
RCS+
DBST
1 _RMPIN+
2 _RMPIN-
3
HOTSET
4 _VRHOT
5
ISHARE
IR3087
PHASE
IC
VCCH ¹⁵
GATEH ¹⁴
13
PGND
GATEL ¹²
11
VCCL
CBST
CIN
L
CSCOMP
CVCCL
RVCC
RPWMRMP
CVCC
ROP41
ROP42
RBIASIN 20k
RCS-
CCS-
CCS+
RCS+
DBST
1
RMPIN+
2 _RMPIN-
3 _HOTSET
4 _VRHOT
5 _ISHARE
IR3087
PHASE
IC
15
VCCH
GATEH ¹⁴
PGND ¹³
GATEL ¹²
VCCL ¹¹
CBST
CIN
L
CSCOMP
CVCCL
RVCC
RPWMRMP
CVCC
ROP51
ROP52
RBIASIN 20k
RCS-
CCS-
1 _RMPIN+
2
RMPIN-
3 _HOTSET
4
VRHOT
5 _ISHARE
IR3087
PHASE
IC
VCCH ¹⁵
14
GATEH
PGND ¹³
12
GATEL
VCCL ¹¹
CCS+
RCS+
RCS+
CBST
CSCOMP
CVCCL
RVCC
RPWMRMP
CVCC
DBST
CIN
L
ROP61
ROP62
RBIASIN 20k
RCS-
CCS-
1 _RMPIN+
2 _RMPIN-
3 _HOTSET
4 _VRHOT
5
ISHARE
IR3087
PHASE
IC
VCCH ¹⁵
GATEH ¹⁴
PGND ¹³
GATEL ¹²
11
VCCL
CCS+
RCS+
RCS+
CBST
CSCOMP
CVCCL
RVCC
RPWMRMP
CVCC
DBST
CIN
L
VOUT SENSE+
DISTRIBUTION
IMPEDANCE
VOUT+
COUT
VOUT-
VOUT SENSE-
Page 14 of 35
Figure 7. 6 Phase IR3081A/3087 VRM / EVRD 10 Converter
1/31/05