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IR3082

International Rectifier
Part Number IR3082
Manufacturer International Rectifier
Description XPHASE AMD OPTERON/ATHLON 64 CONTROL IC
Published Jul 12, 2006
Detailed Description www.DataSheet4U.com Data Sheet No. PD94710 IR3082 XPHASETM AMD OPTERONTM/ATHLON 64TM CONTROL IC DESCRIPTION The IR3082...
Datasheet PDF File IR3082 PDF File

IR3082
IR3082

Overview
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PD94710 IR3082 XPHASETM AMD OPTERONTM/ATHLON 64TM CONTROL IC DESCRIPTION The IR3082 Control IC combined with an IR XPhaseTM Phase IC provides a full featured and flexible way to implement a complete 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.
With simple 5 bit voltage programming and a few external components, the IR3082 is also well suited for general purpose multiphase applications.
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 • • • • • • • • • • • 5 bit VID with 1% overall system set point accuracy Programmable Dynamic VID Slew Rate +/-300mV Differential Remote Sense Programmable 150kHz to 1MHz oscillator Programmable VID Offset and Load Line output impedance Programmable Softstart Programmable Hiccup Over-Current Protection with Delay to prevent false triggering Simplified Power Good output provides indication of proper operation and avoids false triggering Operates from 12V input with 9.
75V Under-Voltage Lockout 7.
0V/5mA Bias Regulator provides System Reference Voltage DataSheet4U.
com Small thermally enhanced 20L MLPQ package DataShee APPLICATION CIRCUIT POWER GOOD 12V 10 0.
1uF ENABLE 0 2 E L B A N VID0 E L E D / S S C 9 1 D G R W P 8 1 L E D / S S 7 1 T U O P M R 6 1 D N G L VID0 VID1 1 2 3 4 5 VCC VBIAS EAOUT FB VDRP 15 14 13 12 11 0.
1uF VID1 VID2 VID3 VID4 S N S O V 6 VID2 VID3 VID4 IR3082 CONTROL IC C S O R 7 5 Wire Analog Bus (to PHASE ICs) C A D V 8 T E S C O 9 N I I 0 1 ROCSET RVDRP C S O R RVDAC RVFB VCC SENSE CVDAC VSS SENSE DataSheet4U.
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