参数资料
型号: IR3522MTRPBF
厂商: International Rectifier
文件页数: 13/32页
文件大小: 0K
描述: IC CTRL XPHASE3 DDR/VVT 32-MLPQ
标准包装: 3,000
系列: XPhase3™
应用: 处理器
电流 - 电源: 7mA
电源电压: 4.75 V ~ 7.5 V
工作温度: 0°C ~ 100°C
安装类型: 表面贴装
封装/外壳: 32-VFQFN 裸露焊盘
供应商设备封装: 32-MLPQ(5x5)
包装: 带卷 (TR)
IR3522
IR3522 THEORY OF OPERATION
Block Diagram
The Block diagram of the IR3522 is shown in Figure 7. The following discussions are applicable to either output
plane unless otherwise specified.
ENABLE COMPARATOR
ENABLE
1.65V
-
+
250nS
BLANKING
OPEN DAISY
OPEN SENSE
OPEN CONTROL 2
VCCL
1V
OPEN CONTROL 1
DIS
INTERNAL
VCCL UVL
TRACK_FLT
CIRCUIT BIAS COMPARATOR
OV1-2
VCCL
VCCL
VCCL UVLO
CROWBAR
LGND
4.43V
3.99V
SVI _OFF
ENABLE
Fault Latch
I NTERNAL_CROWBAR
25k
VCCL
OC TIMEOUT
SS_DISCHARGED
Control Logic
SOFT STOP
DLY _OUT
UV2
PGBIAS
PGOOD
UV1
SRD_PRESET#
OC LIMIT COMPARATOR 1
3.9V
IIN1
OCSET1
IROSC
OC1
OC2
OC DELAY
COUTER
SS Comparators
SRD_PRESET#
DLY _OUT
ICHG
45uA
IDCHG
55uA
SS/DEL1
IIN2
OC LIMIT COMPARATOR2
PHSOUT
IROSC
SRD PRESET
OCSET2
IROSC
VCCL
OPEN CONTROL 1
OPEN CONTROL 2
Open Control
ERROR
AMPLIFIER 2
INTERNAL_CROWBAR
Loop
ERROR
AMPLIFIER 1
EAOUT2
FB2
DIS
VREF_TRACK
70mV
VOUT1
-
+
T RACK FAULT
COMPARAT OR
TRACK_FLT
SOFT ST ART
CLAMP
1.4V
SS/DEL
I NTERNAL_CROWBAR
DIS
VREF1
EAOUT1
FB1
VOUT2 UV
COMPARATOR
UV2
275mV
315mV
OV1_2
OV1
OVER VOLT AGE
COMPARATOR 1
260mV
275mV
315mV
VOUT1 UV
COMPARATOR
1.0 6V
OVER VOLTAGE
COMPARAT OR 2
-
+
UV1
VREF1
-
+
OV2
REMOTE SENSE
AMPLIFIER 1
VOUT2
25k
OPEN SENSE
25k
25k
VOUT1
VOSEN2+
VOSEN2-
25k
25k
REMOTE SENSE
AMPLIFIER 2
25k
25k
VOSEN1+
VOSEN1-
25k
DETECT PULSE1
SS_DI SCHARGED
VREF BUFFER
OPEN
SENSE LINE
DETECT
CIRCUIT 2
D/A CONVERT ER
DETECT PULSE1
SS_DISCHARGED
OPEN SENSE
LINE DETECT
CIRCUIT 1
VREF1
AMPLIFIER
ISOURCE
IROSC
VREF_TRACK
VOUT1
VID7
TRACK
CONTROL
SVI (Serial VID Int erface)
VID3
VID3
SCL
ISINK
VREF1_FAST
VID7
VREF
CONTROL
VID3
VID3
VID3
SDA
VID7
2X IROSC
SVI_OFF
VID1 OFF
VID7
.
SVI ADDRESS
VALID I2C
VID7
VID7
3.3V
950mV
650mV
VID2 OFF
COMMAND
OVERRIDE
ARRIVED
VID7
ADDR1
OPEN DAISY
VCCL UVLO
FAULT
POWER-UP VREF1
ADDR2
ROSC BUFFER
AMPLIFIER
CURRENT
SOURCE
GENERATOR
VID0
IROSC
PHSIN
VREF1 CODE
STORAGE LATCH
CONTROL
VID1 VID0
0 0
VREF1
1.05V
VID1
0.6V
CLKOUT
PHSOUT
Q
R
D
0
1
1
1
0
1
1.2V
1.35V VID7
1.5V
VID0
ROSC
CLKOUT
PHSIN
PHSOUT
CLK
ENABLE VID7
VID7
1.65V
Figure 7 Block Diagram
Page 13
V3.01
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