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International Rectifier Electronic Components Datasheet

IR3084 Datasheet

XPHASETM VR 10/11 CONTROL IC

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IR3084
Data Sheet No. PD94718
XPHASETM VR 10/11 CONTROL IC
DESCRIPTION
The IR3084 Control IC combined with an IR XPhaseTM Phase IC provides a full featured and flexible
way to implement a complete VR10 or VR11 power solution. The “Control” IC provides overall system
control and interfaces with any number of “Phase” ICs which each drive and monitor a single phase of a
multiphase converter. The XPhaseTM architecture results in a power supply that is smaller, less
expensive, and easier to design while providing higher efficiency than conventional approaches.
FEATURES
1 to X phase operation with matching Phase IC
Supports both VR11 8-bit VID code and extended VR10 7-bit VID code
0.5% Overall System Setpoint Accuracy
VID Select pin sets the DAC to either VR10 or VR11
VID Select pin selects either VR11 or legacy VR10 type startups
Programmable VID offset and Load Line output impedance
Programmable VID offset function at the Error Amp’s non-inverting input allowing zero offset
Programmable Dynamic VID Slew Rate
±300mV Differential Remote Sense
Programmable 150kHz to 1MHz oscillator
Enable Input with 0.85V threshold and 100mV of hysteresis
VR Ready output provides indication of proper operation and avoids false triggering
Phase IC Gate Driver Bias Regulator / VRHOT Comparator
Operates from 12V input with 9.9V Under-Voltage Lockout
6.9V/6mA Bias Regulator provides System Reference Voltage
Programmable Hiccup Over-Current Protection with Delay to prevent false triggering
Small thermally enhanced 5mm x 5mm, 28 pin MLPQ package
TYPICAL APPLICATION CIRCUIT
VCC_SENSE
VSS_SENSE
RT2 R117
4.7K, B=4450 1.21K
RFB1
162
CFB
10nF
C1009
100pF
RFB
324
CCP1
100pF
RCP
2.49K
CCP
56nF
+5.0V
R137
2K
18
17
FB
EAOUT VRRDY 27
IIN 15
RMPOUT 19
RDRP
787
VBIAS 20
IR3084MTR
C134
0.1uF
EA
VREG_12V_FILTERED
VR_RDY
ISHARE
RMP
VBIAS
C89
100pF
R1331 Q4
1 CJD200
C204
0.1uF
OUTEN
VID0
VID1
VID2
VID3
VID4
VID5
VID6
VID7
VID_SEL
VREG_12V_FILTERED
R30
10
C130
0.1uF
16
28
9
8
7
6
5
4
3
2
1
21
26
CSS/DEL
0.1uF
VDRP
ENABLE
VID0
VID1
VID2
VID3
VID4
VID5
VID6
VID7
VIDSEL
VCC
SS/DEL
REGDRV
REGFB
REGSET
VSETPT
OCSET
VDAC
ROSC
VOSNS-- LGND
24
23
25
RVSETPT
124
14
ROCSET
13
15.8K
12
ROSC 30.1K
11
22
10
RVGDRV
97.6K
CVGDRV
10nF
RVDAC
3.5
VDAC
CVDAC
33nF
VGDRIVE
C135
1uF
Page 1 of 45
07/20/2005


International Rectifier Electronic Components Datasheet

IR3084 Datasheet

XPHASETM VR 10/11 CONTROL IC

No Preview Available !

ORDERING INFORAMATION
DEVICE
IR3084MTRPBF
IR3084MPBF
IR3084
ORDER QUANTITY
3000 Tape and Reel
100 Piece Strip
ABSOLUTE MAXIMUM RATINGS
Operating Junction Temperature……………..0 to 150oC
Storage Temperature Range………………….−65oC to 150oC
ESD Rating………………………………………HBM Class 1B JEDEC standard
Moisture Sensitivity Level………………………JEDEC Level 3 @ 260 oC
PIN #
1
2−9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
PIN NAME
VIDSEL
VID7−0
VOSNS−
ROSC
VDAC
OCSET
VSETPT
IIN
VDRP
FB
EAOUT
RMPOUT
VBIAS
VCC
LGND
REGFB
REGDRV
REGSET
SS/DEL
VRRDY
ENABLE
VMAX
20V
20V
0.5V
20V
20V
20V
20V
20V
20V
20V
10V
20V
20V
20V
n/a
20V
20V
20V
20V
20V
20V
VMIN
−0.3V
−0.3V
−0.5V
−0.5V
−0.3V
−0.3V
−0.3V
−0.3V
−0.3V
−0.3V
−0.3V
−0.3V
−0.3V
−0.3V
n/a
−0.3V
−0.3V
−0.3V
−0.3V
−0.3V
−0.3V
ISOURCE
1mA
1mA
10mA
1mA
1mA
1mA
1mA
1mA
5mA
1mA
20mA
5mA
50mA
1mA
50mA
1mA
10mA
1mA
1mA
1mA
1mA
ISINK
1mA
1mA
10mA
1mA
1mA
1mA
1mA
1mA
5mA
1mA
20mA
5mA
10mA
50mA
1mA
1mA
50mA
1mA
1mA
20mA
1mA
Page 2 of 45
07/20/2005


Part Number IR3084
Description XPHASETM VR 10/11 CONTROL IC
Maker International Rectifier
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IR3084 Datasheet PDF






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