ISL6568 Intersil Corporation, ISL6568 Datasheet - Page 3

• Manufacturer Part Number: ISL6568
• Description: Two-Phase Buck PWM Controller
• Manufacturer: Intersil Corporation

Block Diagram
VID12.5
COMP
RGND
VDIFF
VSEN
ISUM
VID4
VID1
IREF
VID3
VID2
VID0
REF
OFS
FB
x1
DYNAMIC
OFFSET
VID
D/A
ISEN AMP
+150mV
x 0.82
V
OVP
OVP
OVP
UVP
x1
ICOMP
3
E/A
OCSET
+1V
100µA
OC
∑
ISEN1 ISEN2
∑
CHANNEL
CURRENT
BALANCE
CHANNEL
CURRENT
FAULT LOGIC
GENERATOR
SOFT START
CLOCK AND
SAWTOOTH
SENSE
AND
0.2V
PGOOD
ISL6568
ISL6568
PWM2
PWM1
1
N
∑
CONTROL
CONTROL
LOGIC
GATE
LOGIC
GATE
PHASE 2
DETECT
0.66V
ENLL
PROTECTION
PROTECTION
THROUGH
POWER-ON
SHOOT-
THROUGH
SHOOT-
RESET
GND
BOOT1
UGATE1
PHASE1
LGATE1
FS
BOOT2
UGATE2
PHASE2
LGATE2
March 9, 2006
VCC
PVCC
FN9187.4