Data Sheet No. PD94705
IR3080
XPHASE
TM
VRD10 CONTROL IC WITH VCCVID & OVERTEMP DETECT
DESCRIPTION
The IR3080 Control IC combined with an IR
XPhase
TM
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 XPhase
TM
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
ROSC
TRM3
17
TRM2
10
11
12
13
14
TRM4
VID4
15
16
9
VDAC
Page 1 of 41
9
/30/04
IR3080
ORDERING INFORAMATION
Device
IR3080MTR
* IR3080M
* Samples only
Order Quantity
3000 per reel
100 piece strips
ABSOLUTE MAXIMUM RATINGS
Operating Junction Temperature……………..150
o
C
Storage Temperature Range………………….-65
o
C to 150
o
C
ESD Rating……………………………………..HBM Class 1C JEDEC standard
PIN #
1
2
3
4-9
10, 11,
13,14
12
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
PIN NAME
VIDFB
VCCVID
VIDPWR
VID0-5
TRM1-4
VOSNS-
ROSC
VDAC
OCSET
IIN
VDRP
FB
EAOUT
BBFB
VBIAS
VCC
LGND
RMPOUT
HOTSET
VRHOT
SS/DEL
PWRGD
VIDPGD
VIDDEL
V
MAX
20V
20V
20V
20V
Do Not Connect
0.5V
20V
20V
20V
20V
20V
20V
10V
20V
20V
20V
n/a
20V
20V
20V
20V
20V
20V
20V
V
MIN
-0.3V
-0.5V
-0.3V
-0.3V
Do Not Connect
-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
-0.3V
-0.3V
-0.3V
-0.3V
I
SOURCE
1mA
400mA
1mA
10mA
Do Not Connect
10mA
1mA
1mA
1mA
1mA
5mA
1mA
10mA
1mA
1mA
1mA
50mA
1mA
1mA
1mA
1mA
1mA
1mA
1mA
I
SINK
1mA
50mA
400mA
10mA
Do Not Connect
10mA
1mA
1mA
1mA
1mA
5mA
1mA
20mA
1mA
1mA
50mA
1mA
1mA
1mA
50mA
1mA
20mA
20mA
1mA
Page 2 of 41
9
/30/04
IR3080
ELECTRICAL SPECIFICATIONS
Unless otherwise specified, these specifications apply over: 9.5V
≤
V
CC
≤
14V, 2.0V
≤
VIDPWR
≤
5.5V and 0
o
C
≤
T
J
≤
100
o
C
PARAMETER
VDAC Reference
System Set-Point Accuracy
TEST CONDITION
-0.3V
≤
VOSNS-
≤
0.3V, Connect FB to
EAOUT, Measure V(EAOUT) –
V(VOSNS-) deviation from Table 1.
Applies to all VID codes.
R
ROSC
= 41.9kΩ
R
ROSC
= 41.9kΩ
MIN
TYP
0.5
MAX
UNIT
%
Source Current
Sink Current
VID Input Threshold
VID Pull-up Resistors
Regulation Detect Comparator
Input Offset
Regulation Detect to EAOUT
Delay
BBFB to FB Bias Current
Ratio
VID 11111x Blanking Delay
VID Step Down Detect
Blanking Time
VID Down BB Clamp Voltage
VID Down BB Clamp Current
Error Amplifier
Input Offset Voltage
68
47
500
500
-5
80
55
600
700
0
130
92
63
700
1000
5
200
1.05
µA
µA
mV
Ω
mV
ns
µA/µA
ns
µs
0.95
Measure time until PWRGD drives low
Measure from VID inputs to EAOUT
Percent of VDAC voltage
70
3.5
-3
1.00
800
1.7
75
6.2
4
80
12
8
%
mA
mV
FB Bias Current
DC Gain
Gain-Bandwidth Product
Source Current
Sink Current
Max Voltage
Min Voltage
VDRP Buffer Amplifier
Input Offset Voltage
Input Voltage Range
Bandwidth (-3dB)
Slew Rate
IIN Bias Current
Connect FB to EAOUT, Measure
V(EAOUT) – V(DAC). from Table 1.
Applies to all VID codes and -0.3V
≤
VOSNS-
≤
0.3V. Note 2
R
ROSC
= 41.9kΩ
Note 1
Note 1
VBIAS–VEAOUT (referenced to VBIAS)
Normal operation or Fault mode
V(VDRP) – V(IIN), 0.8V
≤
V(IIN)
≤
5.5V
Note 1
-31
90
4
0.4
0.7
125
30
-8
0.8
1
-2.0
-29.5
100
7
0.6
1.2
250
100
0
6
10
-0.75
-28
105
0.8
1.7
375
150
8
5.5
µA
dB
MHz
mA
mA
mV
mV
mV
V
MHz
V/µs
µA
0
Page 3 of 41
9
/30/04
IR3080
PARAMETER
Oscillator
Switching Frequency
Peak Voltage (5V typical,
measured as % of VBIAS)
Valley Voltage (1V typical,
measured as % of VBIAS)
VBIAS Regulator
Output Voltage
Current Limit
Soft Start and Delay
SS/DEL to FB Input Offset
Voltage
Charge Current
Discharge Current
Charge/Discharge Current
Ratio
Charge Voltage
Delay Comparator Threshold
Discharge Comparator
Threshold
Over-Current Comparator
Input Offset Voltage
OCSET Bias Current
PWRGD Output
Output Voltage
Leakage Current
VCCVID Regulator
Output Voltage
Dropout Voltage
Current Limit
VIDFB Bias Current
VCCVID Powergood
VCCVID Threshold Voltage
Charge Current
Discharge Current
Charge Voltage
Delay Comparator Threshold
VIDPGD Output Voltage
VIDPGD Leakage Current
TEST CONDITION
R
ROSC
= 41.9kΩ
R
ROSC
= 41.9kΩ
R
ROSC
= 41.9kΩ
MIN
255
70
11
TYP
300
71
14
MAX
345
74
16
UNIT
kHz
%
%
-5mA
≤
I(VBIAS)
≤
0
6.5
-30
0.85
40
4
10
3.7
70
150
6.8
-15
1.3
70
6
11.5
4.0
90
200
7.1
-6
1.5
100
9
13
4.2
110
250
V
mA
V
µA
µA
µA/µA
V
mV
mV
With FB = 0V, adjust V(SS/DEL) until
EAOUT drives high
Relative to Charge Voltage
R
ROSC
= 41.9kΩ
I(PWRGD) = 4mA
V(PWRGD) = 5.5V
-150mA
≤
I(VCCVID)
≤
0
I(VCCVID) = -20mA
I(VCCVID) = -150mA
-10
-31
0
-29.5
150
0
10
-28
400
10
1.215
200
1.0
mV
µA
mV
µA
V
mV
V
mA
µA
1.145
-225
Relative to regulated VCCVID Output
Voltage
1.05
30
4
3.7
65
1.200
130
0.8
-300
-150
1.10
66
7
4.0
90
150
0
1.13
90
11
4.2
115
400
10
V
µA
mA
V
mV
mV
µA
Relative to Charge Voltage
I(VIDPGD) = 4mA
V(VIDPGD) = 5.5V
Page 4 of 41
9
/30/04
IR3080
PARAMETER
VCC Under-Voltage Lockout
Start Threshold
Stop Threshold
Hysteresis
General
VCC Supply Current
VIDPWR Supply Current
VOSNS- Current
VRHOT Comparator
HOTSET Bias Current
Output Voltage
VRHOT Leakage Current
Threshold Hysteresis
TEST CONDITION
MIN
8.6
8.4
150
8
400
-5.5
-2
I(VRHOT) = 29mA
V(VRHOT) = 5.5V
T
J
TYP
9.1
8.9
200
11
550
-4.5
-0.5
300
0
6
MAX
9.6
9.4
300
14
1000
-3.5
1
400
10
10
UNIT
V
V
mV
mA
µA
mA
µA
mV
µA
o
C
Start – Stop
VID0-5 Open, I(VCCVID) = 0
-0.3V
≤
VOSNS-
≤
0.3V, All VID Codes
≥
≥
85
o
C
MIN
4.73mV/
o
C x T
J
+ 1.176V
3
TYP
4.73mV/
o
C x T
J
+ 1.241V
Threshold Voltage
(increasing temperature)
T
J
85
o
C
MAX
4.73mV/
o
C x T
J
+ 1.356V
V
Note 1:
Guaranteed by design, but not tested in production
Note 2:
VDAC Output is trimmed to compensate for Error Amplifier input offsets errors
Page 5 of 41
9
/30/04
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