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参数资料
| 型号： | IR3088AMTR |
| 厂商： | International Rectifier |
| 文件页数： | 12/33页 |
| 文件大小： | 0K |
| 描述： | IC XPHASE W/FAULT DET 20L-MLPQ |
| 标准包装： | 1 |
| 系列： | XPhase™ |
| 应用： | 处理器 |
| 电流 - 电源： | 10mA |
| 电源电压： | 8.4 V ~ 14 V |
| 工作温度： | 0°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 20-MLPQ |
| 供应商设备封装： | 20-MLPQ（4x4） |
| 包装： | 剪切带 (CT) |
| 其它名称： | *IR3088AMTR IR3088AMCT |
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IR3088A
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 IR3088A 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 IR3088A 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
POWERGOOD
VRHOT
PHASE FAULT
12V
VGATE
RCS-
RVCC
10 ohm
QGATE
CCS+
CCS-
RCS+
CVCC
0.1uF
RGATE
DGATE
RBIASIN
20k
DBST
1
RMPIN+
VCCH
15
CBST
CIN
VOUT SENSE+
RFB21
RFB22
2
3
4
RMPIN-
HOTSET
VRHOT
IR3088A
PHASE
IC
GATEH
PGND
GATEL
14
13
12
L
DISTRIBUTION
COUT
VOUT+
ENABLE
CFB
5
ISHARE
VCCL
11
IMPEDANCE
VOUT-
0.1uF
CVCCL
RBBFB
RFB1
RFB
RVCC
VOUT SENSE-
RPWMRMP
VID5
1
2
OSCDS
VID5
VBIAS
BBFB
21
20
RBBDRP
CSCOMP
CVCC
VID0
VID1
3
4
VID0
VID1
IR3081A
CONTROL
EAOUT
FB
19
18
RCP
CCP
RCS-
VID2
VID3
VID4
5
6
7
VID2
VID3
VID4
IC
VDRP
IIN
OCSET
17
16
15
RDRP1 CDRP
RDRP
CCP1
RBIASIN
20k
CCS-
CCS+
RCS+
DBST
CBST
CIN
ROCSET
1
RMPIN+
VCCH
15
ROSC
RVDAC
RSHARE
2
3
4
RMPIN-
HOTSET
VRHOT
IR3088A
PHASE
IC
GATEH
PGND
GATEL
14
13
12
L
5
ISHARE
VCCL
11
CVDAC
CVCCL
RVCC
RPWMRMP
CSCOMP
CVCC
RCS-
CCS+
CCS-
RCS+
RBIASIN
20k
CBST
DBST
CIN
1
RMPIN+
VCCH
15
2
3
4
5
RMPIN-
HOTSET
VRHOT
ISHARE
IR3088A
PHASE
IC
GATEH
PGND
GATEL
VCCL
14
13
12
11
L
CVCCL
RVCC
RPWMRMP
CSCOMP
CVCC
Figure 7. IR3081A/3088A 12V to 2.5V 3 Phase Converter
Page 12 of 33
1/15 /05
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| IR3088AMTRPBF | 功能描述:开关变换器、稳压器与控制器 XPHASE IC W/ FAULT OVERTEMP DETECT RoHS:否 制造商:Texas Instruments 输出电压:1.2 V to 10 V 输出电流:300 mA 输出功率: 输入电压:3 V to 17 V 开关频率:1 MHz 工作温度范围: 安装风格:SMD/SMT 封装 / 箱体:WSON-8 封装:Reel |
| IR3088APBF | 制造商:IRF 制造商全称:International Rectifier 功能描述:XPHASETM PHASE IC WITH FAULT AND OVERTEMP DETECT |
| IR3088M | 功能描述:IC XPHASE W/FAULT DET 20L-MLPQ RoHS:否 类别:集成电路 (IC) >> PMIC - 电源管理 - 专用 系列:XPhase™ 应用说明:Ultrasound Imaging Systems Application Note 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:37 系列:- 应用:医疗用超声波成像，声纳 电流 - 电源:- 电源电压:2.37 V ~ 6 V 工作温度:0°C ~ 70°C 安装类型:表面贴装 封装/外壳:56-WFQFN 裸露焊盘 供应商设备封装:56-TQFN-EP（8x8） 包装:管件 |
| IR3088MPBF | 功能描述:IC CONTROLLER PHASE 20L-MLPQ RoHS:是 类别:集成电路 (IC) >> PMIC - 电源管理 - 专用 系列:XPhase™ 应用说明:Ultrasound Imaging Systems Application Note 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:37 系列:- 应用:医疗用超声波成像，声纳 电流 - 电源:- 电源电压:2.37 V ~ 6 V 工作温度:0°C ~ 70°C 安装类型:表面贴装 封装/外壳:56-WFQFN 裸露焊盘 供应商设备封装:56-TQFN-EP（8x8） 包装:管件 |
| IR3088MTR | 制造商:IRF 制造商全称:International Rectifier 功能描述:XPHASE PHASE IC WITH FAULT AND OVERTEMP DETECT |
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