ISL6327A Datasheet, PDF (3/29 Pages) Intersil Corporation – Enhanced 6-Phase PWM Controller with 8-Bit VID Code and Differential Inductor DCR or Resistor Current Sensing

ISL6327A
ISL6327A Block Diagram
VDIFF VR_RDY
OVP
VCC
RGND
X1
VSEN
OVP
+175MV
S ^{OVP R}
DRIVE
Q
SOFT-START
AND
FAULT LOGIC
POWER-ON
RESET (POR)
0.875V
EN_VTT
0.875V
EN_PWR
CLOCK AND
RAMP
GENERATOR
THREE-STATE
FS
SS
APP AND APA
PWM1
MODULATOR
OFS
REF
DAC
VRSEL
VID7
VID6
VID5
VID4
VID3
VID2
VID1
VID0
COMP
FB
IOUT
IDROOP
OFFSET
APP AND APA
MODULATOR
APP AND APA
MODULATOR
APP AND APA
MODULATOR
DYNAMIC
VID
D/A
2V
OC2
APP AND APA
MODULATOR
E/A
APP AND APA
MODULATOR
CHANNEL CURRENT
BALANCE AND
CURRENT LIMIT
CHANNEL
DETECT
I_TRIP
OC1
1_∑
N
I_TOT
TEMPERATURE
COMPENSATION
CHANNEL
CURRENT
SENSE
THERMAL
MONITORING
GND
TM VR_FAN VR_HOT
3
TEMPERATURE
COMPENSATION
GAIN
TCOMP
PWM2
PWM3
PWM4
PWM5
PWM6
ISEN1+
ISEN1-
ISEN2+
ISEN2-
ISEN3+
ISEN3-
ISEN4+
ISEN4-
ISEN5+
ISEN5-
ISEN6+
ISEN6-
FN6833.0
February 17, 2009