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International Rectifier Electronic Components Datasheet

IR3081 Datasheet

XPHASE VR 10.0 CONTROL IC

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IR3081
DATA SHEET
XPHASETM VR 10.0 CONTROL IC
DESCRIPTION
The IR3081 Control IC combined with an IR XPhaseTM Phase IC provides a full featured and flexible way
to implement a complete VR 10.0 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 IR3081 is intended for VRD or VRM/EVRD 10.0 applications that use external VCCVID/VTT circuits.
FEATURES
6 bit VR 10.0 compatible VID with 0.5% overall system accuracy
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 indicDaatitoanSohfepert4oUpe.croomperation and avoids false triggering
Operates from 12V input with 9.1V Under-Voltage Lockout
6.8V/5mA Bias Regulator provides System Reference Voltage
Enable Input
Small thermally enhanced 28L MLPQ package
DataShee
PACKAGE PINOUT
1 OSCDS
2 VID5
3 VID0
4 VID1
5 VID2
6 VID3
7 VID4
IR3081
CONTROL
IC
VBIAS
BBFB
EAOUT
FB
VDRP
IIN
OCSET
21
20
19
18
17
16
15
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9/1/03


International Rectifier Electronic Components Datasheet

IR3081 Datasheet

XPHASE VR 10.0 CONTROL IC

No Preview Available !

www.DataSheet4U.com
ORDERING INFORMATION
Device
IR3081MTR
IR3081M
IR3081
Order Quantity
3000 per Reel
5 per Bag
ABSOLUTE MAXIMUM RATINGS
Operating Junction Temperature……………..150oC
Storage Temperature Range………………….-65oC to 150oC
ESD Rating………………………………………HBM Class 1C JEDEC standard
et4U.com
PIN #
1
2-7
8, 9,
11,12
10
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
PIN NAME
OSCDS
VID0-5
TRM1-4
VOSNS-
ROSC
VDAC
OCSET
IIN
VDRP
FB
EAOUT
BBFB
VBIAS
VCC
LGND
RMPOUT
SS/DEL
PWRGD
N/C
ENABLE
VMAX
VMIN
20V -0.3V
20V DataSheet4U.-c0o.3mV
Do Not Connect Do Not Connect
0.5V
20V
20V
20V
20V
20V
20V
10V
20V
20V
20V
n/a
20V
20V
20V
n/a
20V
-0.5V
-0.5V
-0.3V
-0.3V
-0.3V
-0.3V
-0.3V
-0.3V
-0.3V
-0.3V
-0.3V
n/a
-0.3V
-0.3V
-0.3V
n/a
-0.3V
ISOURCE
1mA
10mA
Do Not Connect
10mA
1mA
1mA
1mA
1mA
5mA
1mA
10mA
1mA
1mA
1mA
50mA
1mA
1mA
1mA
n/a
1mA
ISINK
1mA
10mA
Do Not Connect
10mA
1mA
1mA
1mA
1mA
5mA
1mA
20mA
1mA
1mA
50mA
1mA
1mA
1mA
20mA
n/a
1mA
DataShee
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9/1/03


Part Number IR3081
Description XPHASE VR 10.0 CONTROL IC
Maker International Rectifier
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IR3081 Datasheet PDF






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