IR3086M International Rectifier, IR3086M Datasheet - Page 20

• Manufacturer Part Number: IR3086M
• Description: IC PHASE CONTROLLER 20-MLPQ
• Manufacturer: International Rectifier
• Series: XPhase™r

Specifications of IR3086M

• Applications: Processor
• Current - Supply: 10mA
• Voltage - Supply: 8.4 V ~ 14 V
• Operating Temperature: 0°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 20-MLPQ
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: *IR3086M

CURRENT SHARE LOOP COMPENSATION
The crossover frequency of the current share loop should be at least one decade lower than that of the voltage loop
in order to eliminate the interaction between the two loops. A capacitor from SCOMP to ground is usually enough
for the share loop compensation. Choose the crossover frequency of current share loop (f
crossover frequency of voltage loop (f
Where F
Page 20 of 34
C
MI
SCOMP
is the PWM gain in the current share loop
=
. 0
65
C
C
C
R
R
F
CP
MI
CP
CP
FB
FB
*
1
1
R
=
=
=
=
=
=
PWMRMP
R
R
2
2
2
(
2
π
π
FB
PWMRMP
V
π
π
I
∗
∗
∗
∗
∗
−
f
f
2 (
K
K
V
C
f
C
f
C
*
C
PWMRMP
π
∗
∗
V
∗
1
∗
1
*
R
R
I
∗
K
K
*
CP
C
FB
∗
I
PWMRMP
∗
C),
L
O
R
C
E
*
CP
−
and determine the C
∗
FB
G
V
V
C
CS
DAC
V
O
E
O
∗
*
_
∗
∗
ROOM
2
)
f
π
f
SW
( *
K
C
∗
)
V
2
*
I
f
V
*
∗
CI
−
V
PWMRMP
R
,
V
*
PWMRMP
LE
DAC
. 1
*
05
1 [
)
*
+
10
SCOMP
2
π
6
*
f
CI
,
*
C
E
( *
V
O
I
O
)]
*
F
MI
(37)
(38)
(39)
(40)
(41)
(
(42)
43)
CI
9/30
) based on the
IR3086
/04