ir3500 International Rectifier Corp., ir3500 Datasheet - Page 14

• Manufacturer Part Number: ir3500
• Description: Xphase3 Vr11.0 & Amd Pvid Control Ic
• Manufacturer: International Rectifier Corp.

ROSC/OVP
VCCLDRV
VCCLFB
ENABLE
CLKOUT
PHSOUT
SS/DEL
VIDSEL
PHSIN
VDAC
VCCL
LGND
VID7
VID6
VID5
VID4
VID3
VID2
VID1
VID0
VO
OV@START
VCCL-1.2V
Float
Voltage
3.5k
800mV
INTEL
850mV
CLKOUT
PHSOUT
VCCL REGULATOR
AMPLIFIER
VBIAS
VID0
PHSIN
0.6V
1.19V
0.86
VCCL UVLO
VID4
VID2
0.6V
3.3V
+
-
OV@OPERATION
AMD 1.2V
ENABLE
COMPARATOR
VID5
VID3
VID1
VID0
VIDSEL
VIDSEL
VIDSEL
VIDSEL
VID7
VID6
-
+
VIDSEL
COMPARATORS
VID INPUT
COMPARATORS
(1/8 SHOWN)
0.86
1.14V
0.94
AMD 1.0V
INTEL 0.6V
VCCLDRV
IROSC
+
-
VCCL OUTPUT
COMPARATOR
80mV
120mV
+
-
4.0V
250nS
BLANKING
FAULT
ROSC BUFFER
AMPLIFIER
VID5
VID3
VID1
VID4
VID7
VID6
VID2
AMD 6-BIT
VR11 BOOT
VR11 NoBOOT
OPEN DAISY
CHAIN
AMD 5-BIT
DIGITAL
TO ANALOG
CONVERTER
INTERNAL
+
-
VDAC
DELAY
COMPARATOR
VID0
VCCL UVLO
VIDSEL
+
-
DISCHARGE
COMPARATOR
0.2V
VBOOT
LATCH VID FAULT
DVID
VID
FAULT
VIDSEL
VBOOT
(1.1V)
-
+
CURRENT
SOURCE
GENERATOR
S
R
POWER OK
LATCH
IROSC
1.3uS
BLANKING
Q
VBOOT
LATCH
SET
DOMINANT
SS RESET
Q
RESET
DOMINANT
S
R
R
S
DYNAMIC VID DETECT
COMPARATOR
Q
SAMPLE DELAY
FAULT LATCH1
+
-
ISOURCE
ISINK
VCCL
EAOUT
+
-
VDAC BUFFER
AMPLIFIER
1.08V
50mV
OV FAULT
VID FAULT
LATCH
SET
DOMINANT
VID SAMPLE
DELAY
COMPARATOR
R
S
-
+
OC DELAY
8-Pulse
Delay
+
-
Q
RESET
3.2V
1.6V
130mV
3mV
OC
IDCHG
OPEN VOLTAGE LOOP
OC LIMIT
AMPLIFIER
4.5uA
200mV
OC after VRRDY
VID FAULT LATCH
OPEN SENSE LINE
OPEN DAISY CHAIN
OC LIMIT
COMPARATOR
OPEN SENSE
LINE DETECT
COMPARATORS
OC DELAY
COUNTER
-
+
60mV
OC before VRRDY
+
-
OVER
VOLTAGE
COMPARATOR
VID FAULT
VCCL UVLO
-
+
DISABLE
+
-
DIS
OPEN SENSE LINE
IROSC
PHSOUT
+
-
DETECTION
PULSE
REMOTE SENSE
AMPLIFIER
VO
SS RESET
VCCL UVLO
SS RESET
25k
SS CLEARED
FAULT LATCH1
UV CLEARED
FAULT LATCH2
IROSC
IOCSET
25k
+
-
SOFT
START
CLAMP
VIDSEL
DETECTION
PULSE
SET
DOMINANT
SET
DOMINANT
S
R
S
R
+
-
IVOSEN+
25k
25k
Q
Q
1.4V
1.73V
VCCL
POWER NOT OK
FAULT LATCH1
FAULT LATCH2
POWER-UP OV
COMPARATOR
IVOSEN-
OV@START
OV@OPERATION
ERROR
AMPLIFIER
OV FAULT
IROSC
-
+
OPEN SENSE
LINE DETECT
COMPARATORS
1.5V
ENABLE
1.6V
VRHOT COMPARATOR
IVOSEN-
OV@OPERATION
-
+
-
+
VCCL UVLO
VCCL
+
+
-
VDRP AMPLIFIER
-
+
DISABLE
ISETPT
VCCL*0.9
0.4V
OV FAULT
LATCH
+
-
SET
DOMINANT
S
R
Q
OV@START
OV FAULT
VCCL
VRRDY
HOTSET
VRHOT
IIN
OCSET
VDRP
EAOUT
FB
VSETPT
VOSEN+
VOSEN-