ISL6334 INTERSIL [Intersil Corporation], ISL6334 Datasheet - Page 4

• Manufacturer Part Number: ISL6334
• Description: VR11.1, 4-Phase PWM Controller with Light Load Efficiency Enhancement and Load Current Monitoring
• Manufacturer: INTERSIL [Intersil Corporation]

ISL6334 and ISL6334A Block Diagram
VR_HOT
VR_FAN
COMP
IMON
RGND
VSEN
VID7
VID6
VID5
VID4
VID3
VID2
VID1
VID0
DAC
OFS
REF
SS
FB
1.11V
1.11V
OFFSET
-
+
+
-
+175mV
THERMAL
MONITOR
OVP
DYNAMIC
X1
TM
VID
D/A
+
-
OCP
4
VDIFF
FAULT LOGIC
SOFT-START
COMPENSATION
AND
TEMPERATURE
VR_RDY
GAIN ADJUST
+
-
TCOMP
E/A
OCP
+
-
RAMP GENERATOR
I_TRIP
ISL6334, ISL6334A
FS
CLOCK AND
N
1
PSI#
Σ
CURRENT LIMIT
N
APP and APA
MODULATOR
APP and APA
MODULATOR
APP and APA
MODULATOR
APP and APA
MODULATOR
AND PEAK
CHANNEL
CURRENT
BALANCE
RESET (POR)
POWER-ON
COMPENSATION
TEMPERATURE
GND
CHANNEL
CURRENT
SENSE
N
CHANNEL
DETECT
+
+
-
-
0.875
0.875
February 26, 2008
EN_PWR
EN_VTT
PWM1
PWM2
PWM3
PWM4
ISEN1+
ISEN1-
ISEN2+
ISEN2-
ISEN3+
ISEN3-
ISEN4+
ISEN4-
FN6482.0