isl6312a Intersil Corporation, isl6312a Datasheet - Page 3

• Manufacturer Part Number: isl6312a
• Description: Four-phase Buck Pwm Controller With Integrated Mosfet Drivers For Intel Vr10, Vr11, And Amd Applications
• Manufacturer: Intersil Corporation

Block Diagram
OVPSEL
VRSEL
COMP
RGND
VDIFF
VSEN
VID7
VID6
VID5
VID4
VID3
VID2
VID1
VID0
IOUT
OFS
REF
FB
MODE / DAC
OFFSET
SELECT
DYNAMIC
D/A
UNDERVOLTAGE
VID
OVERVOLTAGE
DETECTION
DETECTION
x1
x1
LOGIC
LOGIC
V
OCP
OCP
LINE PREVENTION
ISEN1- ISEN1+ ISEN2- ISEN2+
OPEN SENSE
3
CURRENT
SENSE
CH1
I_AVG
E/A
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
∑
CURRENT
ISL6312A
ISL6312A
SENSE
SS
0.2V
CH3
I_AVG
∑
CURRENT
1
N
SENSE
CH4
ISEN4+
PWM1
PWM2
PWM3
PWM4
0.85V
EN
GND
POWER-ON
CHANNEL
RESET
DETECT
SIGNAL
LOGIC
PWM4
MOSFET
DRIVER
MOSFET
MOSFET
DRIVER
DRIVER
PH4 POR/
DETECT
August 1, 2007
VCC
PVCC1_2
BOOT1
UGATE1
PHASE1
LGATE1
DRSEL
FS
BOOT2
UGATE2
PHASE2
LGATE2
EN_PH4
PVCC3
BOOT3
UGATE3
PHASE3
LGATE3
PWM4
FN9290.3