IR3086AM International Rectifier, IR3086AM Datasheet - Page 20

• Manufacturer Part Number: IR3086AM
• Description: XPHASE Phase IC with OVP with fault overtemp detect. The IR3086AM Phase IC combined with an IR XPhase TM Control IC provides a full featured and flexible way to implement power solutions for the latest high performance CPUs and ASICs.
• Manufacturer: International Rectifier

Specifications of IR3086AM

• Package: 20-Lead MLPQ
• Circuit: X-Phase Phase IC
• Iout (a): 2.5A Gate Driver
• Pbf: PbF Option Available

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 33
C
MI
SCOMP
is the PWM gain in the current share loop

. 0
65
F
MI
*
R

PWMRMP
R
(
PWMRMP
V
I

V
*
PWMRMP
V
*
I
*
C
I
PWMRMP
C),
O
*

and determine the C
G
V
V
CS
DAC
O

*
_
ROOM
2
)
f

SW
( *

V
*
I
f
V
*
CI

PWMRMP
R
,
V
*
LE
DAC
. 1
*
05
1 [
)
*

10
SCOMP
2

6
*
f
CI
,
*
C
E
( *
V
O
I
O
)]
*
F
MI
(40)
(
41)
IR3086A
CI
2/13/09
) based on the