ISL6326 Datasheet, PDF (3/30 Pages) Intersil Corporation – 4-Phase PWM Controller with 8-Bit DAC Code Capable of Precision rDS ON or DCR Differential Current Sensing

ISL6326CR Block Diagram
VDIFF VR_RDY
ISL6326
FS
RGND
VSEN
-
X1
+
CLOCK AND
RAMP GENERATOR
N
+
OVP
-
SOFT-START
AND
FAULT LOGIC
POWER-ON
RESET (POR)
- ^0.875
+
EN_VTT
- ^0.875
+
EN_PWR
SS
VRSEL
VID7
VID6
VID5
VID4
VID3
VID2
VID1
VID0
DAC
OFS
REF
FB
COMP
IDROOP
VR_HOT
VR_FAN
+175mV
DYNAMIC
VID
D/A
APP AND APA
MODULATOR
APP AND APA
MODULATOR
APP AND APA
MODULATOR
PWM1
PWM2
PWM3
OFFSET
THERMAL
MONITOR
APP AND APA
MODULATOR
PWM4
+
E/A
-
-
OCP
+
I_TRIP
CHANNEL
CURRENT
BALANCE
AND PEAK
CURRENT LIMIT
1
N
Σ
TEMPERATURE
COMPENSATION
TEMPERATURE
COMPENSATION
GAIN ADJUST
CHANNEL
DETECT
N
CHANNEL
CURRENT
SENSE
ISEN1+
ISEN1-
ISEN2+
ISEN2-
ISEN3+
ISEN3-
ISEN4+
ISEN4-
TM
3
TCOMP
GND
FN9262.1
May 5, 2008