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IR3080MTRPBF
XPHASE VRD10 Control IC with VccVid and Overtemp Detect
International
IEER Rectifier Data Sheet No. PD94705 revB
IR3080PbF
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 7000 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
APPLICATION CIRCUIT
10 ohm
VRHOT D— $15.21.
POWERGOOD D— l
VID POWERGOOD D—
RHOTSETZ
R H UTSETI
CVIDDEL
——i” HII
SSIDEL fii &
a R R 3
4 co C2 r- - r- D
'ts E E g bs' § F, < RMPOUT
VCCVID ">-rlrCC,s,r,5 F l > 3 E VCC :[——<: VBIAS
2 VCCVID VBIAS 23 -_0r1uF
3.3V _ VIDPWR BBFB 22 T l, REP cop <3 EA
VID5 =-4 vms 1R3080 EAOUT 2-ll"l ---y-_ 5Wire Analog Bus
CONTROL
VIDO =-'- v.00 IC FB 20 RDRPt CDRP CJL to Phase ICs
VID1 6 19
[lr-'' VID1 VDRP RDRP
VID2 =-r 16
RFE1 RFB
T'"" VOSENSE+ Remote Sense
< VOSENSE-
Page 1
International
19R Rectifier IR3080PbF
ORDERING INFORMATION
Device Order Quantity
|R3080MTRPbF 3000 per reel
IR3080MPbF 100 piece strips
ABSOLUTE MAXIMUM RATINGS
Operating Junction Temperature... ... ... ... ... ..
Storage Temperature Range ......................
-65°C to 150°C
ESD Rating ............................................ HBM Class IC JEDEC standard
Page 2
PIN NAME
VIDFB 20V
VCCVID 20V
VIDPWR 20V
VIDO-5 20V
TRM1-4
VOSNS- 0.5V
ROSC 20V
VDAC 20V
OCSET 20V
IIN 20V
VDRP 20V
FB 20V
EAOUT 10V
BBFB 20V
VBIAS 20V
VCC 20V
LGND n/a
RMPOUT 20V
HOTSET 20V
VRHOT 20V
SS/DEL 20V
PWRGD 20V
VIDPGD 20V
VIDDEL 20V
Do Not Connect
Do Not Connect
ISOURCE
Do Not Connect
Do Not Connect
