IR3084UMTRPBF International Rectifier, IR3084UMTRPBF Datasheet - Page 42

• Manufacturer Part Number: IR3084UMTRPBF
• Description: IC CTLR XPHASE 28-MLPQ
• Manufacturer: International Rectifier
• Series: XPhase™r

Specifications of IR3084UMTRPBF

• Package / Case: 28-MLPQ
• Mounting Type: Surface Mount
• Current - Supply: 14mA
• Voltage - Supply: 9.5 V ~ 16 V
• Operating Temperature: 0°C ~ 100°C
• Applications: Processor
• Package: 28-Lead MLPQ
• Circuit: X-Phase Control IC
• Switch Freq (khz): 150kHz to 1.0MHz
• Pbf: PbF Option Available
• 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 42 of 47
=
=
=
. 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
9
. 0
DAC
*
0105
*
V
*
)
34
f
I
( *
SW
*
( *
I
V
*
O
. 0
I
V
. 1 (
47
*
−
PWMRMP
30
G
V
*
V
10
CS
DAC
O
−
130
*
−
_
3
ROOM
)
2
7
π
1 *
=
* )
*
0 .
15
1 [
*
*
f
+
CI
8 .
CI
R
10
2
) should be at least one decade lower than that of the
LE
π
*
*
−
(
3
12
10
*
. 1
* )
*
4
05
1 [
*
3
−
2
10
π
*
+
0
*
*
220
8 .
3
10
2
4
*
π
*
−
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
IR3084U
=
MI
. 0
−
3
)
0105
9/14/2005
130
* ]
. 0
SCOMP
0105