900,000+ datasheet pdf search and download

Datasheet4U offers most rated semiconductors data sheet pdf




International Rectifier Electronic Components Datasheet

IR3084U Datasheet

OPTERON/ATHLON64 CONTROL IC

No Preview Available !

IR3084U
Data Sheet No. PD94719
XPHASETM VR10, VR11 & OPTERON/ATHLON64 CONTROL IC
DESCRIPTION
The IR3084U Control IC combined with an IR XPhaseTM Phase IC provides a full featured and flexible
way to implement a complete VR10, VR11, Opteron, or Athlon64 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.
The IR3084U is based on the IR3084 VR10 Control IC, but incorporates the following modifications;
Supports VR11 7-bit VID, VR10 7-bit extended VID, and Opteron/Athlon64 5-bit VID codes
Supports both VR11 and legacy Opteron/Athlon64 start-up sequences
VID Select pin sets the DAC to VR10, VR11, or Opteron/Athlon64
INTL_MD output pin indicates which DAC is selected – Intel or AMD
VOSENSfloat detection protects the CPU in the event that the VOSENStrace is broken
Enable Input Thresholds set by VID Select pin to either VR10, VR11 or Opteron/Athlon64
VID Input Thresholds set by VID Select pin to either 0.6V (VR10/VR11) or 1.24V (AMD)
No-Load Setpoint Current changes polarity based on VID Select to accommodate VR10, VR11
(negative offset from DAC) or Opteron/Athlon64 (positive offset from DAC).
FEATURES
www.DataSheet4U.com
1 to X phase operation with matching Phase IC
7-bit VR 10/11 compatible VID with 0.5% overall system set point accuracy
5-bit Opteron/Athlon64 compatible VID with 1% overall system set point accuracy
Programmable Dynamic VID Slew Rate
+/-300mV Differential Remote Sense
Programmable VID Offset Voltage at the Error Amplifier’s Non-Inverting Input allows Zero Offset
Programmable 150kHz to 1MHz oscillator
Programmable VID Offset and Load Line output impedance
Programmable Hiccup Over-Current Protection with Delay to prevent false triggering
Simplified VR Ready output provides indication of proper operation and avoids false triggering
Operates from 12V input with 9.9V Under-Voltage Lockout
6.8V/6mA Bias Regulator provides System Reference Voltage
Phase IC Gate Driver Bias Regulator / VRHOT Comparator
Reduced Over-Current Detect Delay eliminates and external resistor in typical applications
Small thermally enhanced 28L MLPQ package
Page 1 of 47
9/14/2005


International Rectifier Electronic Components Datasheet

IR3084U Datasheet

OPTERON/ATHLON64 CONTROL IC

No Preview Available !

IR3084U
TYPICAL APPLICATION CIRCUIT
VCC_SENSE
VSS_SENSE
RT2 R117
4.7K, B=4450 1.21K
RFB1
162
CFB
12nF
C1009
1nF
RFB
348
Q5
OUTEN
VID0
VID1
VID2
VID3
VID4
VID5
VID6
VID_SEL
VREG_12V_FILTERED
R30
10
CCP1
100pF
RDRP1
750
C130
0.1uF
RCP
2.49K
CCP
56nF
+5.0V
18 U5
R137
2K
17
RDRP
750
FB EAOUT VRRDY
IIN
RMPOUT
VBIAS
IR3084UMTR
27
15
19
20
C134
0.1uF
REGDRV 24
16 VDRP
REGFB 23
REGSET 25
28
9
8
7
6
5
4
3
1
ENABLE
VID0
VID1
VID2
VID3
VID4
VID5
VID6
VIDSEL
INTL_MD 2
RVSETPT1
124
21 VCC
26 SS/DEL
CSS/DEL
VSETPT 14
OCSET 13
VDAC 12
RVSETPT
124
ROCSET
12.7K
0.1uF
VOSNS-- LGND ROSC 11
ROSC
10 22
30.1K
EA
VREG_12V_FILTERED
R1331
1
Q4
CJD200
C89
100pF
VR_RDY
ISHARE
RMP
VBIAS
C204
0.1uF
RVGDRV
97.6K
CVGDRV
10nF
Q6
RVDAC
3.5
CVDAC
33nF
VDAC
VGDRIVE
C135
1uF
Page 2 of 47
9/14/2005


Part Number IR3084U
Description OPTERON/ATHLON64 CONTROL IC
Maker International Rectifier
PDF Download

IR3084U Datasheet PDF






Similar Datasheet

1 IR3084 XPHASETM VR 10/11 CONTROL IC
International Rectifier
2 IR3084A XPHASE TM VR 10/11 CONTROL IC
International Rectifier
3 IR3084U OPTERON/ATHLON64 CONTROL IC
International Rectifier





Part Number Start With

0    1    2    3    4    5    6    7    8    9    A    B    C    D    E    F    G    H    I    J    K    L    M    N    O    P    Q    R    S    T    U    V    W    X    Y    Z



Site map

Webmaste! click here

Contact us

Buy Components

Privacy Policy