ISL6334A_14 Datasheet, PDF (4/31 Pages) Intersil Corporation – VR11.1, 4-Phase PWM Controller with Light Load Efficiency Enhancement and Load Current Monitoring Features

ISL6334, ISL6334A
ISL6334 and ISL6334A Block Diagram
VDIFF VR_RDY FS PSI#
RGND
VSEN
-
X1
+
CLOCK AND
RAMP GENERATOR
N
POWER-ON
RESET (POR)
+
OVP
-
SOFT-START
AND
FAULT LOGIC
- ^0.875
+
EN_VTT
- ^0.875
+
EN_PWR
+175mV
SS
VID7
VID6
VID5
VID4
VID3
VID2
VID1
VID0
DAC
DYNAMIC
VID
D/A
OFS
REF
FB
COMP
OFFSET
IMON
1.11V
+
OCP
-
1.11V
VR_HOT
VR_FAN
THERMAL
MONITOR
TM
APP and APA
MODULATOR
APP and APA
MODULATOR
PWM1
PWM2
APP and APA
MODULATOR
PWM3
APP and APA
MODULATOR
PWM4
+
E/A
-
CHANNEL
CURRENT
BALANCE
AND PEAK
CURRENT LIMIT
CHANNEL
DETECT
N
+
OCP
-
I_TRIP
1
N
Σ
TEMPERATURE
COMPENSATION
CHANNEL
CURRENT
SENSE
TEMPERATURE
COMPENSATION
GAIN ADJUST
ISEN1+
ISEN1-
ISEN2+
ISEN2-
ISEN3+
ISEN3-
ISEN4+
ISEN4-
TCOMP
GND
4
FN6482.2
February 1, 2013