IR3521MTRPBF International Rectifier, IR3521MTRPBF Datasheet - Page 16

• Manufacturer Part Number: IR3521MTRPBF
• Description: IC CTRL XPHASE3 SVID 32-MLPQ
• Manufacturer: International Rectifier
• Series: XPhase3™r

Specifications of IR3521MTRPBF

• Applications: Processor
• Current - Supply: 10mA
• Voltage - Supply: 4.75 V ~ 7.5 V
• Operating Temperature: 0°C ~ 100°C
• Mounting Type: Surface Mount
• Package / Case: *
• Package: 32-Lead MLPQ
• Circuit: X-Phase Control IC
• Switch Freq (khz): 250kHz to 1.5MHz
• Pbf: PbF Option Available
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

VCCLDRV
VOSEN2+
VOSEN2-
VCCLFB
OCSET2
EAOUT2
SS/DEL2
VOUT2
ROSC
VDAC2
EPAD
FB2
IIN2
1.2V
UV2
VCCL
VOUT2 UV
COMPARATOR
1.08V
ERROR
AMPLIFIER
+
-
VCCL REGULATOR
AMPLIFIER
OPEN CONTROL2
DIS
FLT2
VCCL UVL
COMPARATOR
OPEN DAISY
OPEN SENSE2
DCHG2
3.9V
-
+
IVOSEN-
0.86
VDAC BUFFER
AMPLIFIER
0.94
OV2
0.6V
+
-
+
-
VCCL
275mV
315mV
0.4V
AND2
OPEN CONTROL
LOOP COMPARATOR
AND2
U?
DISABLE2
U?
8 Pulse
Delay
VCCL*0.9
+
+
-
ROSC BUFFER
AMPLIFIER
IVOSEN2-
ISOURCE
DETECTION PULSE2
ISINK
-
+
DIS
DIS
+
-
VDAC2
DETECTION PULSE2
-
+
VCCL- 1.2V
VCCL UVLO
4.5uA
IDCHG
EN
OVER VOLTAGE
COMPARATOR
80mV
120mV
ICHG
50uA
EN
VCCL
+
-
VDAC2
OV1_2
PHSOUT
IVOSEN2+
VCCL-UVLO
-
+
VDD
25k
25k
25k
1.4V
IROSC
UV CLEARED
FAULT LATCH2
DIS
DELAY
COMPARATOR
FLT2
260mV
CURRENT
SOURCE
GENERATOR
+
-
IOCSET
0.2V
VIDSEL
SET
DOMINANT
S
R
DISCHARGE
COMPARATOR
D
.
REMOTE SENSE
AMPLIFIER
VCCL
+
-
Q
-
+
DLY OUT2
POR
DISABLE
+
-
OV2
1.6V
OC LIMIT
COMPARATOR
Q
Q
SOFT
START
CLAMP
25k
OC2 AFTER VRRDY
IROSC
IROSC
VCCL UVLO
OC2 Bf VRRDY
+
-
SELECT MODE
SELECT MODE
OV2
OV1
VCCL RESET
DISABLE
POWER-UP
OK LATCH
CLKOUT
VCCL UVLO
CLKOUT
RESET
DOMINANT
OV1-2
S
R
DYNAMIC VID2 DOWN
DETECT COMPARATOR
VID0
OPEN SENSE LINE2
Q
Q
50mV
OV FAULT LATCH
DLY OUT2
60mV
PHSIN
PHSIN
4 OPEN SENSE
LINE DETECT
COMPARATORS
Figure 8 Block Diagram
SET
DOMINANT
OPEN DAISY
CHAIN
OVLATCH
S
R
+
-
FAULT
PHSOUT
-
+
DCHG2
Q
+
-
SSCL FS2
PHSOUT
SS/DEL CLEARED
FAULT LATCH2
PHSOUT
IROSC
200mV
FLT2
CLOCK
MEMORY
SET
DOMINANT
IDCHG2
47uA
S
R
DIS
DIS
OC DELAY
COUTER
Page 16
Q
OVLATCH
VRRDY
reset
DIS
IDCHG1
47uA
DVID2
reset
OC DELAY
COUTER
DIS
DIS
SS/DEL CLEARED
FAULT LATCH1
DCHG1
VRRDY
VOUT2 VID OFF
VOUT1 VID OFF
SET
DOMINANT
DLY OUT1
Q
VCCL
DIS
DIS
SSCL FS1
SVID to SVID
SVID to Metal
Metal to SVID
SVID to SVID
SVID to Metal
Metal to SVID
S
R
SSCL FS2
200mV
FLT2
PHSOUT
IROSC
DYNAMIC VID1 DOWN
DETECT COMPARATOR
DISABLE
SSCL FS1
OPEN SENSE LINE1
4 OPEN SENSE
LINE DETECT
COMPARATORS
Vout1 VID
On-The-Fly
High to Low
OVLATCH
Vout2 VID
On-The-Fly
High to Low
-
+
+
-
FLT1
60mV
250nS
BLANKING
+
-
10k
FLT1
FLT1
OC LIMIT
COMPARATOR
50mV
CONVERTER
D/A
DLY OUT2
OC1 AFTER VRRDY
POWER-UP
OK LATCH
DLY OUT1
RESET
DOMINANT
SELECT MODE
OC1 Bf VRRDY
Q
Q
VID7
+
-
DISABLE
VCCL UVLO
IROSC
VCCL RESET
S
R
IDCHG
4.5uA
REMOTE SENSE
AMPLIFIER
PHSOUT
VID7
VID3
SOFT
START
CLAMP
OV1 FAULT LATCH
25k
VID3
DLY OUT1
1.6V
IOCSET
+
-
DISCHARGE
COMPARATOR
Back to PRE-PWROK
2 BIT VID
SVI (Seriel VID Interface)
DIS
SVID ENABLED
READ & STORE PRE-PWROK 2
BIT VID
8 Pulse
Delay
VIDSEL
UV CLEARED
FAULT LATCH1
+
-
VFIX Mode
DELAY
COMPARATOR
-
+
ENABLE
COMPARATOR
DIS
SET
DOMINANT
VID3
IVOSEN1+
IROSC
VID3
Q
VID3
0.2V
1.4V
260mV
25k
25k
OPEN CONTROL
LOOP COMPARATOR
R
S
+
-
DETECTION PULSE1
DETECTION PULSE1
25k
Connection to VCCL
-
+
VCCL
UV2
UV1
OV1
50uA
-
+
80mV
120mV
ICHG
VDAC1
+
-
VDAC1
1.65V
1V
Low to High
High to Low
OVER VOLTAGE
COMPARATOR
EN
ISOURCE
EN
ISINK
-
+
IVOSEN1-
VCCL*0.9
DISABLE1
-
+
VDAC BUFFER
AMPLIFIER
VCCL
IVOSEN-
INTERNAL
CIRCUIT
BIAS
275mV
315mV
0.4V
VCCL
-
+
+
+
-
IROSC
3.9V
-
+
ERROR
AMPLIFIER
VID3
400k
DIS
1.08V
VID3
VID3
OPEN DAISY
OPEN SENSE1
OPEN CONTROL1
VDRP
AMPLIFIER
VOUT1 UV
COMPARATOR
DCHG1
FLT1
OV1
+
-
VCCLDRV
VID3
VID3
SVC
SVD
VCCL
VDD
IR3521
IFB
V3.03
UV1
VDAC1
PGOOD
SS/DEL1
ENABLE
VCCL
FB1
VOSEN1-
SVD
VDRP1
IIN1
OCSET1
EAOUT1
VOUT1
VOSEN1+
PWROK
SVC
PSI_L