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IR3084M-IR3084MTRPBF
XPhase Control IC, VR10.x and VR11
International
TOR Rectifier IR3084
DATA SHEET
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
ur300mV 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
ll 2s EA
RT2 R117 +5 0V
4.7K. 13:4450 1.21K ch cop A R1331 Q4
2 49K 56nF VREG_12CFILTERED 1 COD200
>—/vv~—| _ R137 l' >>VGDRIVE
RFBI CFB 2K
162 10nF 18 C204 c135
VCC_SENSE 17 27 “‘“F luF
y _ _ FB EAOUT VRRDY >> VR_RDY -- --
Lie; 'IQ IIN 15 2r ISHARE
"s-ST-E RMPOUT 19 D RMP
>_________.
RDRP VBIAS FF VBIAS
787 C134 __ C89
IR3084MTR 0.1uF 100pF
16 VDRP REGDRV 24
elléEEN 2: ENABLE REGFE 23
VID1 8 T,"] T 25
VID2 7 D REGSE
VID3 6 a3;
VID4 5 RVSETPT RVGDRV CVGDRV
VID5 ( 'j/if, 124 97.6K 10nF
3:36; E VIDG VSETPT "--
VID-SE ( VIDSEL 13 ROCSET -- --
VREG_12V_FILTERED OCSET 15 8K
l' vcc 12
R30 C130 VDAC >) VDAC
10 I 01UF 26 SS/DEL 11 ROSC 301K :DAC
"-NN"- ' -
CSS/DEL ROSC - CVDAC
' o 1 F 33nF
_ u 22
V0SNS-- LGND =
= 110 =
International
IEER Rectifier IR3084
ORDERING INFORAMATION
DEVICE ORDER QUANTITY
|R3084MTRPBF 3000 Tape and Reel
|R3084MPBF 100 Piece Strip
ABSOLUTE MAXIMUM RATINGS
Operating Junction Temperature ................. 0 to 150°C
Storage Temperature Range ...................... -65t to 150°C
ESD Rating-........-.-..............)-' CIass1B JEDEC standard
Moisture Sensitivity Level ........................... JEDEC Level 3 @ 260 °C
PIN # PIN NAME
1 VIDSEL
2-9 VlD7-0
10 VOSNS-
11 ROSC
12 VDAC
13 OCSET
14 VSETPT
15 IIN
16 VDRP
18 EAOUT
19 RMPOUT
20 VBIAS
21 VCC
22 LGND
23 REGFB
24 REGDRV
25 REGSET
26 SS/DEL
27 VRRDY
28 ENABLE
Page 2 of 45 03/4/2009
