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ISL6322_07 Datasheet, PDF (3/41 Pages) Intersil Corporation – Four-Phase Buck PWM Controller with Integrated MOSFET Drivers and I2C Interface for Intel VR10, VR11, and AMD Applications | |||
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ISL6322
Block Diagram
VSEN
RGND
VDIFF
OPEN SENSE
LINE PREVENTION
x1
UNDERVOLTAGE
DETECTION
LOGIC
PGOOD
SOFT-START
AND
FAULT LOGIC
OVERVOLTAGE
DETECTION
LOGIC
0.2V
EN
0.85V
POWER-ON
RESET
MOSFET
DRIVER
SS/RST/A0
SCL
SDA
I2C
LOGIC
VRSEL
MODE/DAC
SELECT
VID7
VID6
VID5
VID4
VID3
VID2
VID1
VID0
REF
FB
COMP
OFS
IDROOP
DYNAMIC
VID
D/A
OFFSET
LOAD APPLY
TRANSIENT
ENHANCEMENT
CLOCK AND
MODULATOR
WAVEFORM
GENERATOR
OC
I_TRIP
E/A
â
â
â
â
PWM1
PWM2
PWM3
PWM4
I_AVG
CHANNEL
CURRENT
BALANCE
I_AVG 1
N
â
CH1
CURRENT
SENSE
CH2
CURRENT
SENSE
CH3
CURRENT
SENSE
CH4
CURRENT
SENSE
MOSFET
DRIVER
CHANNEL
DETECT
PH4 POR/
DETECT
MOSFET
DRIVER
PWM4
SIGNAL
LOGIC
VCC
PVCC1_2
BOOT1
UGATE1
PHASE1
LGATE1
FS
BOOT2
UGATE2
PHASE2
LGATE2
EN_PH4
PVCC3
BOOT3
UGATE3
PHASE3
LGATE3
PWM4
ISEN1- ISEN1+ ISEN2- ISEN2+ ISEN3- ISEN3+ ISEN4- ISEN4+
GND
3
FN6328.1
February 15, 2007
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