ISL6310 Datasheet, PDF (3/27 Pages) Intersil Corporation – Two-Phase Buck PWM Controller with High Current Integrated MOSFET Drivers

Block Diagram
ICOMP DROOP OCSET
ISL6310
PGOOD OVP
ISUM
IREF
ISEN AMP
100µA
OC
RGND
VSEN
VDIFF
x1
x1
UVP
OVP
OVP
+150mV
x 0.82
+1V
SOFT-START
AND
FAULT LOGIC
0.2V
CLOCK AND
SAWTOOTH
GENERATOR
∑
PWM1
REF1
REF0
DAC
DAC
∑
PWM2
REF
FB
COMP
OFST
OFFSET
CHANNEL
1
E/A
CURRENT
N
BALANCE
∑
CHANNEL
CURRENT
SENSE
ISEN1
ISEN2
ENLL
0.66V
POWER-ON
RESET
GATE
CONTROL
LOGIC
SHOOT-
THROUGH
PROTECTION
GATE
CONTROL
LOGIC
SHOOT-
THROUGH
PROTECTION
PHASE 2
DETECT
GND
3
VCC
PVCC
BOOT1
UGATE1
PHASE1
LGATE1
FS
BOOT2
UGATE2
PHASE2
LGATE2
2PH
FN9209.4
August 7, 2008