參數(shù)資料
型號(hào)： IR3088MTR
廠商： International Rectifier
英文描述： XPHASE PHASE IC WITH FAULT AND OVERTEMP DETECT
中文描述： XPHASE相集成電路及超溫故障檢測
文件頁數(shù)： 12/34頁
文件大小： 688K
代理商： IR3088MTR
IR3088
Phase Fault
It is possible for multiphase converters to appear to be working correctly with one or more phases not functioning.
The output voltage can still be regulated and the full load current may still be delivered. However, the remaining
phase(s) will be stressed far beyond their intended design limits and are likely to fail. Loss of a phase can occur due
to poor solder connections or mounting during the manufacturing process, or can occur in the field. The most
common failure mode of a buck converter is failure of the high side MOSFET. The IR3088 has the ability to detect if
a phase stops switching and can provide this information to the system through the PHSFLT output pin. If a phase
stops switching its output current will drop to zero and the output of its IR3088 current sense amplifier will be the
DACIN voltage. The Share Adjust Amplifier reacts to this by increasing the Ramp Slope Adjust current until it
exceeds the externally programmable PWM Ramp bias current. This will cause the voltage at the PWMRMP pin to
drop below its normal operating range. The Fault Comparator trips and drives the PHSFLT output to ground when
the voltage on the PWMRMP pin falls below 91% of the DACIN voltage. PHSFLT is an open-collector output and
should be pulled up to a voltage source through a resistor.
APPLICATIONS INFORMATION
DBST
CVCC
ROCSET
DBST
CCS+
CBST
R
RCP
CCS-
RBIASIN
C
CFB
CBST
0.1uF
OSCDS
1
VID5
2
VID0
3
VID1
4
VID2
5
VID3
6
VID4
7
P
2
T
8
T
9
V
1
T
1
T
1
V
1
S
2
R
1
E
2
R
2
L
2
V
2
VBIAS
21
BBFB
20
EAOUT
19
FB
18
VDRP
17
IIN
16
OCSET
15
N
2
IR3081
CONTROL
IC
CSCOMP
CVCCL
R
RCS+
RVCC
CSCOMP
R
RCS-
RCS-
CVCC
CVCCL
RCS+
RCS-
CSCOMP
RSHARE
RFB
CIN
RVDAC
CVDAC
R
CIN
CCS+
D
1
B
2
RMPIN+
1
RMPIN-
2
GATEH
14
VCCH
15
C
1
P
1
HOTSET
3
VRHOT
4
S
6
E
7
PGND
13
GATEL
12
L
9
P
8
ISHARE
5
V
1
VCCL
11
C
1
IR3088
PHASE
IC
R
R
CCS-
D
1
B
2
RMPIN+
1
RMPIN-
2
GATEH
14
VCCH
15
C
1
P
1
HOTSET
3
VRHOT
4
S
6
E
7
PGND
13
GATEL
12
L
9
P
8
ISHARE
5
V
1
VCCL
11
C
1
IR3088
PHASE
IC
R
CCS-
RVCC
RFB1
CVCCL
C
R
RBIASIN
RFB21
ROSC
RVCC
RPWMRMP
RBIASIN
DBST
CCS+
RPWMRMP
0.1uF
CVCC
C
RCS+
CVCC
CCP1
RFB22
D
1
B
2
RMPIN+
1
RMPIN-
2
GATEH
14
VCCH
15
C
1
P
1
HOTSET
3
VRHOT
4
S
6
E
7
PGND
13
GATEL
12
L
9
P
8
ISHARE
5
V
1
VCCL
11
C
1
IR3088
PHASE
IC
CBST
CCP
CIN
RPWMRMP
10 ohm
RVCC
R
POWERGOOD
VRHOT
PHASE FAULT
VOUT SENSE-
12V
VID3
VID4
VID0
VID1
VID5
ENABLE
VID2
VOUT+
VOUT SENSE+
VOUT-
DISTRIBUTION
IMPEDANCE
COUT
R
1nF
C
Figure 7. IR3081/3088 12V to 2.5V 3 Phase Converter
Page 12 of
34
9/30
/04
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IR3092 制造商:IRF 制造商全稱:International Rectifier 功能描述:2 PHASE OPTERON, ATHLON, OR VR10.X CONTROL IC
IR3092M 功能描述:IC CONTROLLER 2PHASE 48-MLPQ RoHS:否 類別:集成電路 (IC) >> PMIC - 電源控制器，監(jiān)視器 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:2,500 系列:- 應(yīng)用:多相控制器 輸入電壓:- 電源電壓:9 V ~ 14 V 電流 - 電源:- 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:40-WFQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:40-TQFN-EP（5x5） 包裝:帶卷 (TR)
IR3092MPBF 功能描述:IC VID VOLTAGE PROGRAMMER 48MLPQ RoHS:是 類別:集成電路 (IC) >> PMIC - 電源控制器，監(jiān)視器 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:2,500 系列:- 應(yīng)用:多相控制器 輸入電壓:- 電源電壓:9 V ~ 14 V 電流 - 電源:- 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:40-WFQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:40-TQFN-EP（5x5） 包裝:帶卷 (TR)
IR3092MTR 功能描述:IC CONTROLLER 2PHASE 48-MLPQ RoHS:否 類別:集成電路 (IC) >> PMIC - 電源控制器，監(jiān)視器 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:2,500 系列:- 應(yīng)用:多相控制器 輸入電壓:- 電源電壓:9 V ~ 14 V 電流 - 電源:- 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:40-WFQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:40-TQFN-EP（5x5） 包裝:帶卷 (TR)
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