ISL8103 INTERSIL [Intersil Corporation], ISL8103 Datasheet - Page 26

• Manufacturer Part Number: ISL8103
• Description: Three-Phase Buck PWM Controller with High Current Integrated MOSFET Drivers
• Manufacturer: INTERSIL [Intersil Corporation]

+5V
R
C
+12V
R
REF
REF
OFST
C
R
HF0
FS
VSEN
RGND
OVP
PGOOD
GND
ENLL
IREF
VDIFF
3PH
2PH
VCC
OFST
FS
DAC
REF
REF1
REF0
OCSET
R
R
DROOP
OCSET
1
ICOMP
FB
26
C
C
FIGURE 27. PRINTED CIRCUIT BOARD POWER PLANES AND ISLANDS
1
ISL8103
R
COMP
COMP
C
2
R
ISUM
2
COMP
(MINIMIZE CONNECTION PATH)
UGATE3
UGATE1
PHASE1
UGATE2
PHASE3
LGATE1
PHASE2
LGATE3
LGATE2
C
BOOT1
BOOT2
BOOT3
PVCC1
PVCC3
PVCC2
LOCATE CLOSE TO IC
ISEN3
ISEN1
ISEN2
SUM
C
C
C
R
R
R
BOOT1
BOOT3
BOOT2
S
S
S
R
R
R
ISEN2
ISEN3
C
ISL8103
ISEN1
C
C
HF02
HF03
HF01
C
C
C
HF1
HF2
HF3
+12V
+12V
+12V
C
BIN3
C
C
BIN1
BIN2
KEY
LOCATE NEAR SWITCHING TRANSISTORS;
HEAVY TRACE ON CIRCUIT PLANE LAYER
ISLAND ON POWER PLANE LAYER
ISLAND ON CIRCUIT PLANE LAYER
VIA CONNECTION TO GROUND PLANE
L
L
(MINIMIZE CONNECTION PATH)
L
OUT3
OUT2
OUT1
(MINIMIZE CONNECTION PATH)
C
LOCATE NEAR LOAD;
BOUT
(C
HFOUT
February 15, 2006
LOAD
)
FN9246.0