ISL6432 Datasheet, PDF (2/12 Pages) Intersil Corporation – PWM and Triple Linear Power Controller for Home Gateway Applications

Block Diagram
FB3
DRIVE3
DRIVE4
VCC
EA3
-
+
EA4
+
-
x 0.70
FB4
DRIVE2
FB2
+
0.8V
-
INHIBIT/SOFT-START
EA2
UV3
+
-
UV4
UV2
GND
OSCILLATOR
OCSET
VCC
40µA
POWER-ON
RESET (POR)
SOFT-
START
AND FAULT
LOGIC
+
-
EA1
++
--
OCC
+
-
COMP1
PWM
FB COMP
DRIVE1
GATE
CONTROL
BOOT
UGATE
PHASE
VCC
SYNC
DRIVE
LGATE
PGND