ISL6364 Datasheet, PDF (4/44 Pages) Intersil Corporation – Dual 4-Phase + 1-Phase PWM Controller for VR12/IMVP7 Applications

ISL6364
ISL6364 Internal Block Diagram
FSS_DRPS
VR_RDYS
PWMS
TMS
VSENS
HFCOMPS/DVCS
FBS
RGNDS
COMPS
VR_RDY
BTS_DES_TCOMPS
BT_FDVID_TCOMP
NPSI_DE_IMAX
ADDR_IMAXS_TMAX
SVCLK
SVALERT#
SVDATA
VSEN
RGND
FB
PSICOMP
HFCOMP
COMP
SICI
“SICI” FOR
ISL6364:
“IAUTO” FOR
ISL6364A
IMON
GND
VR_HOT#
TM
THERMAL
MONITOR
HIGH FREQUENCY
COMPENSATION
IDROOPS
++
THGS
+
OVP
-
+
-
175mV
+
E/A
-
VR1: CLOCK AND
RAMP GENERATOR
SOFT-START
AND
FAULT LOGIC
EAPP
MODULATOR
TCOMPS
E/A
THGS
TEMPERATURE
COMPENSATION
AVERAGE & PEAK
CURRENT LIMIT
1.11V
-
OCP
+
IDROOPS
1.15V
DAC &
OFFSET
TCOMPS
SVID BUS
INTERFACE
TMAX
VR1 REGs
VR0 REGs
VR0: CLOCK AND
RAMP GENERATOR
N
LATCH
POWER-ON
RESET (POR)
RESET
- ^0.85V
+
- ^0.85V
+
TCOMP
PSI#
SOFT-START
AND
FAULT LOGIC
DAC &
OFFSET
+ _REF
+
+
-
175mV
+
E/A
-
EAPP
MODULATOR
EAPP
MODULATOR
PSI#
IDROOP
HIGH FREQUENCY
COMPENSATION
AUTO PHASE SHED
SHEDDING
+
1.11V _OCP
-
EAPP
MODULATOR
EAPP
MODULATOR
CHANNEL
CURRENT
BALANCE
AND PEAK
CURRENT LIMIT
CHANNEL
SHED _DETECT
N
1.15V
I_TRIP
1
N
TMAX
TCOMP
Σ
THERMAL
MONITOR
THG
TEMPERATURE
COMPENSATION
GAIN ADJUST
TEMPERATURE
COMPENSATION
CHANNEL
CURRENT
SENSE
ISENS+
ISENS-
IMONS
FS_DRP
RAMP_ADJ
VCC
EN_VTT
EN_PWR_OVP
OVP FOR
ISL6364A
PWM1
PWM2
PWM3
PWM4
ISEN1+
ISEN1-
ISEN2+
ISEN2-
ISEN3+
ISEN3-
ISEN4+
ISEN4-
RSET
4
FN6861.0
December 22, 2010