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International Rectifier Electronic Components Datasheet

IR3092 Datasheet

2 PHASE OPTERON/ ATHLON/ OR VR10.X CONTROL IC

No Preview Available !

IR3092
DATA SHEET
2 PHASE OPTERON, ATHLON, OR VR10.X CONTROL IC
DESCRIPTION
The IR3092 Control IC provides a full featured, single chip solution to implement robust power conversion
solutions for three different microprocessor families; 1) AMD Opteron, 2) AMD Athlon or 3) Intel VR10.X
family of processors. The user can select the appropriate VID range with a single pin. PWM Control and 2
phase gate drive functions are integrated into a single IC. In addition to CPU power, the IR3092 offers a
compact, efficient solution for high current POL converters.
FEATURES
x 5 bit or 6 bit VID with 0.5% overall system accuracy
x Selectable VID Code for AMD Opteron, AMD Athlon or Intel VR10.X
x Programmable Slew Rate response to “On-the-Fly” VID Code Changes
x 3.5A Gate Drive Capability
x Programmable 100KHz to 540KHz oscillator
x Programmable Voltage Positioning (can be disabled)
x Programmable Softstart
x Programmable Hiccup Over-Current Protection with Delay to prevent false triggering
x Simplified Powergood provides indication of proper operation and avoids false triggering
x Operates up to 21V input with 7.8V Under-Voltage Lockout
x 5V UVL with 4.3V Under-Voltage Lockout threshold
x Adjustable Voltage, 150mA Bias Regulator provides MOSFET Drive Voltage
x Enable Input
x OVP Output
x Available in a 48L MLPQ package
ORDERING INFORMATION
x Samples Only
DEVICE
IR3092MTR
*IR3092M
PACKAGE INFORMATION
ORDER QUANTITY
3000 per Reel
100 piece strips
Page 1 of 37
VID3
VID4
ROSC
VOSNS-
OCSET
VDAC
VDRP
FB
EAOUT
SS/DEL
SCOMP
NC
IR3092
48LD MLPQ
GAT EH1
PGND1
GAT EL1
VCCL
5VUVL
GAT EL2
PGND2
GAT EH2
VCCH2
NC
NC
NC
48L MLPQ
(7 x 7 mm Body)
JA = 27oC/W
06/25/04


International Rectifier Electronic Components Datasheet

IR3092 Datasheet

2 PHASE OPTERON/ ATHLON/ OR VR10.X CONTROL IC

No Preview Available !

IR3092
PIN DESCRIPTION
PIN#
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16-17
18
19
20
21
22
23-27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43-44
45
46
47
48
PIN SYMBOL
VID3
VID4
ROSC
VOSNS-
OCSET
VDAC
VDRP
FB
EAOUT
SS/DEL
SCOMP
N/C
LGND
SETBIAS
VCC
N/C
BIASOUT
PWRGD
CSINP2
N/C
VID_SEL
N/C
VCCH2
GATEH2
PGND2
GATEL2
5VUVL
VCCL
GATEL1
PGND1
GATEH1
VCCH1
NC
CSINM1
CSINP1
OVP
ENABLE
N/C
VID5
VID0
VID1
VID2
PIN DESCRIPTION
Inputs to VID D to A Converter
Inputs to VID D to A Converter
Connect a resistor to VOSNS- to program oscillator frequency and FB, OCSET, BBFB, and VDAC bias currents
Remote Sense Input. Connect to ground at the Load.
Programs the hiccup over-current threshold through an external resistor tied to VDAC and an internal current
source.
Regulated voltage programmed by the VID inputs. Current Sensing and Over Current Protection are referenced
to this pin. Connect an external RC network to VOSNS- to program Dynamic VID slew rate.
Buffered IIN signal. Connect an external RC network to FB to program converter output impedance
Inverting input to the Error Amplifier. Converter output voltage is offset from the VDAC voltage through an
external resistor connected to the converter output voltage at the load and an internal current source. Bias
current is a function of ROSC. Also OVPsense.
Output of the Error Amplifier
Controls Converter Softstart, Power Good, and Over-Current Timing. Connect an external capacitor to LGND to
program the timing.
Compensation for the Current Share control loop. Connect a capacitor to ground to set the control loop’s
bandwidth. Phase 2 is forced to match phase 1’s current.
No Connect.
Local Ground and IC substrate connection
External resistor to ground sets voltage at BIASOUT pin. Bias current is a function of ROSC.
Power for internal circuitry and source for BIASOUT regulator
No Connect.
150mA open-looped regulated voltage set by SETBIAS for GATE drive bias.
Open Collector output that drives low during Softstart or any fault condition. Connect external pull-up.
Non-inverting input to the Phase 2 Current Sense Amplifier.
No Connect.
Ground Selects VR10 VID, Float Selects OPTERON VID, VCC Selects ATHLON VID
No Connect.
Power for Phase 2 High-Side Gate Driver
Phase 2 High-Side Gate Driver Output and input to GATEL2 non-overlap comparator.
Return for Phase 2 Gate Drivers
Phase 2 Low-Side Gate Driver Output and input to GATEH2 non-overlap comparator.
Can be used to monitor the driver supply voltage or 5V supply voltage when converting from 5V. An under
voltage condition initiates Soft Start.
Power for Phase 1 and 2 Low-Side Gate Drivers.
Phase 1 Low-Side Gate Driver Output and input to GATEH1 non-overlap comparator.
Return for Phase 1 Gate Drivers
Phase 1 High-Side Gate Driver Output and input to GATEL1 non-overlap comparator.
Power for Phase 1 High-Side Gate Driver
Not connected
Inverting input to the Phase 1Current Sense Amplifier.
Non-inverting input to the Current Sense Amplifier.
Output that drives high during an Over-Voltage condition.
Enable Input. A logic low applied to this pin puts the IC into Fault mode.
No Connect.
Inputs to VID D to A Converter
Inputs to VID D to A Converter
Inputs to VID D to A Converter
Inputs to VID D to A Converter
Page 2 of 37
06/25/04


Part Number IR3092
Description 2 PHASE OPTERON/ ATHLON/ OR VR10.X CONTROL IC
Maker International Rectifier
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IR3092 Datasheet PDF






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