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International Rectifier Electronic Components Datasheet

IR3093M Datasheet

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

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IR3093
DATA SHEET
3 PHASE OPTERON, ATHLON, OR VR10.X CONTROL IC
DESCRIPTION
The IR3093 Control IC provides a full featured, cost effective, single chip solution to implement robust
power conversion solutions for three different microprocessor families; 1) AMD’s Opteron, 2) AMD’s
Athlon or 3) Intel’s VR-10.X family of processors. The user can select the appropriate VID range with a
single pin. Control and 3 phase Gate Drive functions are integrated into a single cost effective IC. . In
addition to CPU power, the IR3093 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 or Athlon or Intel VR10.X
x Programmable Slew Rate response to “On-the-Fly” VID Code Changes
x 3A GATELX Pull Down 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 7.9V Under-Voltage Lockout
x 5V UVL with 4.36V Under-Voltage Lockout threshold
x Adjustable Voltage, 150mA Bias Regulator provides MOSFET Drive Voltage
x Enable Input
x OVP Flag Output detects high side fet short at powerup
x Pin compatible with IR3092, 2-phase PWM Control IC
x Available 48L MLPQ package
ORDERING INFORMATION
* Samples Only
Device
IR3093MTR
*IR3093M
Order Quantity
3000 per Reel
100 piece strips
PACKAGE INFORMATION
VID3
VID4
ROSC
VOSNS-
OCSET
VDAC
VDRP
FB
EAOUT
SS/DEL
SCOMP2
SCOMP3
IR3093
48LD MLPQ
GAT EH1
PGND1
GAT EL1
VCCL1_2
5VUVL
GAT EL2
PGND2
GAT EH2
VCCH2
VCCH3
GAT EH3
PGND3
48L MLPQ
(7 x 7 mm Body)
JA = 27oC/W
Page 1 of 39
07/15/04


International Rectifier Electronic Components Datasheet

IR3093M Datasheet

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

No Preview Available !

IR3093
PIN DESCRIPTION
PIN#
1
2
3
4
5
PIN SYMBOL
VID3
VID4
ROSC
VOSNS-
OCSET
6 VDAC
7 VDRP
8 FB
9 EAOUT
10 SS/DEL
11 SCOMP2
12 SCOMP3
13 LGND
14 SETBIAS
15 VCC
16 CSINP3
17 CSINM3
18 BIASOUT
19 PWRGD
20 CSINP2
21 CSINM2
22 VID_SEL
23 VCCL3
24 GATEL3
25 PGND3
26 GATEH3
27 VCCH3
28 VCCH2
29 GATEH2
30 PGND2
31 GATEL2
32 5VUVL
33 VCCL1_2
34 GATEL1
35 PGND1
36 GATEH1
37 VCCH1
38 NC
39 CSINM1
40 CSINP1
41 OVP
42 ENABLE
43 OVPSNS
44 5VREF
45 VID5
46 VID0
47 VID1
48 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 OVP sense
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.
Compensation for the Current Share control loop. Connect a capacitor to ground to set the control loop’s
bandwidth. Phase 3 is forced to match phase 1’s current.
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
Non-inverting input to the Phase 3 Current Sense Amplifier.
Inverting input to the Phase 3 Current Sense Amplifier.
200mA 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.
Inverting input to the Phase 2 Current Sense Amplifier.
Ground Selects VR10.X VID, Float Selects OPTERON VID, VCC Selects ATHLON VID
Power for Phase 3 Low-Side Gate Driver.
Phase 3 Low-Side Gate Driver Output and input to GATEH3 non-overlap comparator.
Return for Phase 3 Gate Drivers
Phase 3 High-Side Gate Driver Output and input to GATEL3 non-overlap comparator.
Power for Phase 3 High-Side Gate Driver
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.
Dedicated output voltage sense pin for Over Voltage Protection.
Compensation for internal voltage reference rail.
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 39
07/15/04


Part Number IR3093M
Description 3 PHASE OPTERON/ ATHLON/ OR VR10.X CONTROL IC
Maker International Rectifier
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