ISL6523A Datasheet, PDF (2/16 Pages) Intersil Corporation – VRM8.5 Dual PWM and Dual Linear Power System Controller

VSEN3
OCSET2
VSEN1
OCSET1
VCC
DRIVE3
DRIVE4
VSEN4
UGATE2
PHASE2
VSEN2
VAUX
EA3
-
+
1.5V
x0.75
- ^UV3
+
+
-
EA4
VCC
DRIVE2
x0.75
+
1.8V
-
+ ^UV4
-
+ ^OC2
-
200µA
GATE
CONTROL
INHIBIT
PWM
COMP2
PWM2
-
+ _EA2
OV
SOFT-
START
& FAULT
LOGIC
FAULT
VCC
x0.90
+
1.2V
-
UV2
SET
Q
CLK
QD
CLR
OSCILLATOR
28µA
4.5V
x 1.10
x 0.90
x 1.15
28µA
4.5V
+
200µA
-
+
-
POWER-ON
RESET (POR)
+
-
OC1 ₊
-
VCC
DRIVE1
+
-
EA1
DACOUT
+
-
PWM
COMP1
GATE
CONTROL
PWM1
SYNCH
DRIVE
TTL D/A
CONVERTER
(DAC)
VCC
VAUX
PGOOD
UGATE1
PHASE1
LGATE1
PGND
GND
VTTPG
SS13
SS24
FB1 _{COMP1 VID3 VID2 VID1 VID0 VID25}
FIGURE 1. BLOCK DIAGRAM