ISL6558 Datasheet, PDF (3/16 Pages) Intersil Corporation – Multi-Purpose Precision Multi-Phase PWM Controller With Optional Active Voltage Positioning

Block Diagram
ISL6558
PGOOD
V_CC
VSEN
COMP
FB
DROOP
X 0.9
X1.15
-
UV
+
+
OV
-
POWER-ON
RESET (POR)
OV R
LATCH
S
+
∑
-
CLOCK AND
SAWTOOTH
GENERATOR
THREE-STATE
+
PWM
-
SOFT-
START
AND FAULT
LOGIC
+
∑
-
+
PWM
-
0.8V
REFERENCE
+
E/A
-
+
∑
-
+
∑
-
+
PWM
-
+
PWM
-
CURRENT
CORRECTION
PHASE
NUMBER
CHANNEL
DETECTOR
I_TOTAL
+
OC
-
+
+
∑
+
+
I_TRIP
FS/EN
PWM1
PWM2
PWM3
PWM4
ISEN1
ISEN2
ISEN3
ISEN4
GND
3
FN9027.12
June 21, 2005