isl6566a Intersil Corporation, isl6566a Datasheet - Page 2

• Manufacturer Part Number: isl6566a
• Description: Three-phase Buck Pwm Controller With Two Integrated Mosfet Drivers And One External Driver Signal
• Manufacturer: Intersil Corporation

Block Diagram
VID12.5
VRM10
RGND
COMP
VDIFF
VSEN
ISUM
IREF
VID4
VID3
VID2
VID1
VID0
REF
OFS
FB
x1
DYNAMIC
OFFSET
VID
D/A
ISEN AMP
+150mV
x 0.82
V
OVP
UVP
OVP
OVP
x1
ICOMP
2
E/A
OCSET
+1V
100µA
OC
ISEN1
∑
CHANNEL
CURRENT
BALANCE
∑
CHANNEL
CURRENT
FAULT LOGIC
SOFT-START
∑
GENERATOR
SENSE
CLOCK AND
SAWTOOTH
ISEN2
0.2V
AND
PGOOD
ISL6566A
ISL6566A
ISEN3
PWM1
PWM2
PWM3
1
N
∑
CONTROL
CONTROL
LOGIC
GATE
CHANNEL
LOGIC
DETECT
GATE
0.66V
ENLL
PROTECTION
THROUGH
PROTECTION
POWER-ON
SHOOT-
THROUGH
SHOOT-
RESET
SIGNAL
LOGIC
PWM3
GND
DETECT
PH2
PH3 POR /
DETECT
PWM3
VCC
PVCC1
BOOT1
UGATE1
PHASE1
LGATE1
FS
PVCC2
BOOT2
UGATE2
PHASE2
LGATE2
EN_PH3
NC
NC
NC
July 27, 2005
FN9200.2