ISL6322 INTERSIL [Intersil Corporation], ISL6322 Datasheet - Page 3

• Manufacturer Part Number: ISL6322
• Description: Four-Phase Buck PWM Controller with Integrated MOSFET Drivers and I2C Interface for Intel VR10, VR11, and AMD Applications
• Manufacturer: INTERSIL [Intersil Corporation]

Block Diagram
SS/RST/A0
IDROOP
VRSEL
COMP
RGND
VDIFF
VSEN
VID7
VID6
VID5
VID4
VID3
VID2
VID1
VID0
SDA
OFS
SCL
REF
FB
MODE/DAC
SELECT
OFFSET
LOGIC
DYNAMIC
I
UNDERVOLTAGE
2
VID
D/A
OVERVOLTAGE
C
DETECTION
DETECTION
x1
LOGIC
LOGIC
LINE DETECT
3
OPEN SENSE
ISEN1- ISEN1+ ISEN2- ISEN2+
CURRENT
SENSE
CH1
E/A
I_AVG
I_TRIP
OC
CURRENT
SENSE
CH2
FAULT LOGIC
SOFT-START
CHANNEL
CURRENT
BALANCE
PGOOD
∑
AND
∑
ENHANCEMENT
ISEN3- ISEN3+ ISEN4-
∑
MODULATOR
LOAD APPLY
GENERATOR
CLOCK AND
TRANSIENT
WAVEFORM
ISL6322
ISL6322
∑
CURRENT
SENSE
CH3
0.2V
I_AVG
∑
CURRENT
1
N
SENSE
CH4
ISEN4+
PWM1
PWM2
PWM4
PWM3
0.85V
EN
GND
POWER-ON
CHANNEL
RESET
DETECT
SIGNAL
LOGIC
PWM4
MOSFET
DRIVER
MOSFET
MOSFET
DRIVER
DRIVER
PH4 POR/
DETECT
August 21, 2006
FN6328.0
PVCC1_2
VCC
BOOT1
UGATE1
PHASE1
LGATE1
FS
BOOT2
UGATE2
PHASE2
LGATE2
PVCC3
BOOT3
UGATE3
PHASE3
LGATE3
EN_PH4
PWM4