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IR3080

International Rectifier
Part Number IR3080
Manufacturer International Rectifier
Description XPHASE VRD10 CONTROL IC WITH VCCVID & OVERTEMP DETECT
Published Apr 16, 2005
Detailed Description Data Sheet No. PD94705 IR3080 XPHASETM VRD10 CONTROL IC WITH VCCVID & OVERTEMP DETECT DESCRIPTION The IR3080 Control IC...
Datasheet PDF File IR3080 PDF File

IR3080
IR3080

Overview
Data Sheet No.
PD94705 IR3080 XPHASETM VRD10 CONTROL IC WITH VCCVID & OVERTEMP DETECT DESCRIPTION The IR3080 Control IC combined with an IR XPhaseTM Phase IC provides a full featured and flexible way to implement a complete VRD 10 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 IR3080 is intended for desktop applications and includes the VCCVID and VRHOT functions required for proper system operation.
FEATURES • • • • • • • • • • • • • • • • • 6 bit VR10 compatible VID with 0.
5% overall system accuracy 1 to X phases operation with matching phase ICs On-chip 700Ω VID Pull-up resistors with VID pull-up voltage input Programmable Dynamic VID Slew Rate No Discharge of output capacitors during Dynamic VID step-down (can be disabled) +/-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 Powergood provides indication of proper operation and avoids false triggering Operates from 12V input with 9.
1V Under-Voltage Lockout 6.
8V/5mA Bias Regulator provides System Reference Voltage 1.
2V @ 150mA VCCVID Linear Regulator with Full Protection VCCVID Powergood with Programmable delay gates converter operation Programmable Converter Over-Temperature Detection and Output Small thermally enhanced 32L MLPQ package PACKAGE PIN OUT 32 30 31 VIDDEL 29 28 HOTSET 27 26 RMPOUT VIDPGD PWRGD SS/DEL VRHOT LGND 25 1 2 VIDFB VCC VBIAS 24 23 22 VCCVID 3 VIDPWR 4 VID5 5 VID0 6 VID1 IR3080 CONTROL IC VOSNS- BBFB EAOUT 21 FB 20 VDRP 19 7 VID2 IIN 18 8 VID3 TRM1 OCSET ...


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