IR3084AMPBF International Rectifier, IR3084AMPBF Datasheet - Page 40

• Manufacturer Part Number: IR3084AMPBF
• Description: IC XPHASE CONTROL 28-MLPQ
• Manufacturer: International Rectifier
• Series: XPhase™r

Specifications of IR3084AMPBF

• Applications: Processor
• Current - Supply: 14mA
• Voltage - Supply: 9.5 V ~ 16 V
• Operating Temperature: 0°C ~ 100°C
• Mounting Type: Surface Mount
• Package / Case: 28-MLPQ
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

CURRENT SHARE LOOP COMPENSATION
The crossover frequency of the current share loop (f
voltage loop f
using Equations (34) and (35);
C
F
MI
SCOMP
= 28.2nF
Choose C
Page 40 of 45



. 0
36574
(
R
65
V

PWMRMP
C
I
*
. Choose the crossover frequency of current share loop f
. 0

15
65
30
V
8 .
[ *
SCOMP
PWMRMP
*
.
*
. 2
859
10
*
R
266
C
3
PWMRMP
*
PWMRMP
=22nF with 5% tolerance for best current sharing between phases.
*
12
10
* ]

*
V
130
. 0
9
DAC
*
0105
*
V
*
)
34
I
f
( *
SW
*
( *
V
I
*
. 0
O
I
V
. 1 (
47
*

PWMRMP
30
G
V
*
V
10
CS
DAC
O

130
*

_
3
ROOM
)
2
7

1 *

* )
*
15
0 .
1 [
*
f
*

CI
8 .
CI
R
10
2
) should be at least one decade lower than that of the
LE

*
*

(
3
12
10
*
. 1
* )
*
4
05
1 [
*
3

2
10

*

0
*
*
220
8 .
3
10
2
4
*

*

5600
6
10
*
*
. 1
10
3
30
f
CI
*
CI
*
. 1
10

)
=4kHz
12
*
05
( *

C
6
*
*
12
*
400
E
10
. 1 (
( *
,

6
30
and calculate FMI and C
. 1
V
*

10
O
30
130
3
I
)
O
*
1 *
)]
0
0 .
8 .
*
*
F
10
IR3084A

MI
3/3/2009
. 0

3
)
0105
130
* ]
. 0
SCOMP
0105