参数资料
| 型号： | NCP5387MNR2G |
| 厂商： | ON Semiconductor |
| 文件页数： | 36/37页 |
| 文件大小： | 0K |
| 描述： | IC CTLR BUCK 2/3/4PHASE 40-QFN |
| 产品变化通告： | Specification Change MSL Updated 28/Feb/2008 |
| 标准包装： | 2,500 |
| 应用： | 控制器，Intel VR10、VR11、AMD CPU |
| 输入电压： | 4.75 V ~ 5.25 V |
| 输出数： | 4 |
| 工作温度： | 0°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 40-VFQFN 裸露焊盘 |
| 供应商设备封装： | 40-QFN（6x6） |
| 包装： | 带卷 (TR) |
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NCP5387
DIFFOUT. If the DIFFOUT signal reaches 180 mV above
the nominal 1.3 V offset the OVP will trip. The DIFFOUT
signal is the difference between the output voltage and the
DAC voltage (minus 19 mV if in VR10 or VR11 modes)
plus the 1.3 V internal offset. This results in the OVP
tracking the DAC voltage even during a dynamic change
in the VID setting during operation.
Gate Driver and MOSFET Selection
ON Semiconductor provides the NCP3418B as a
companion gate driver IC. The NCP3418B driver is
Figure 40.
OVP
The overvoltage protection threshold is not adjustable.
OVP protection is enabled as soon as soft?start begins and
is disabled when the part is disabled. When OVP is tripped,
the controller commands all four gate drivers to enable
their low side MOSFETs, and VR_RDY transitions low. In
order to recover from an OVP condition, V CC must fall
below the UVLO threshold. See the state diagram for
optimized to work with a range of MOSFETs commonly
used in CPU applications. The NCP3418B provides special
functionality and is required for the high performance
dynamic VID operation of the part. Contact your local
ON Semiconductor applications engineer for MOSFET
recommendations.
Board Stack?Up
The demo board follows the recommended Intel
Stack?up and copper thickness as shown.
further details. The OVP circuit monitors the output of
Figure 41.
Board Layout
A complete Allegro ATX and BTX demo board layout
file and schematics are available by request at
www.onsemi.com and can be viewed using the Allegro
Free Physical Viewer 15.x from the Cadence website
Close attention should be paid to the routing of the sense
traces and control lines that propagate away from the
controller IC. Routing should follow the demo board
example. For further information or layout review contact
ON Semiconductor.
http://www.cadence.com/.
http://onsemi.com
36
相关PDF资料 |
PDF描述 |
|---|---|
| NCP5388MNR2G | IC CTLR BUCK 2/3/4PHASE 40-QFN |
| NCP5389MNR2G | IC CTLR BUCK 2/3PHASE 32-QFN |
| NCP5391MNR2G | IC CTLR BUCK 2/3PHASE 32-QFN |
| NCP5392PMNR2G | IC CTLR BUCK 2/3/4PHASE 40QFN |
| NCP5392QMNR2G | IC PHASE CONTROLLER 2/3/4 40-QFN |
相关代理商/技术参数 |
参数描述 |
|---|---|
| NCP5388 | 制造商:ONSEMI 制造商全称:ON Semiconductor 功能描述:2/3/4 Phase Buck Controller for VR10 and VR11 Pentium IV Processor Applications |
| NCP5388MNR2G | 功能描述:其他电源管理 2/3/4 PHASE CNTRLLR RoHS:否 制造商:Texas Instruments 输出电压范围: 输出电流:4 mA 输入电压范围:3 V to 3.6 V 输入电流: 功率耗散: 工作温度范围:- 40 C to + 110 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-48 封装:Reel |
| NCP5389 | 制造商:ONSEMI 制造商全称:ON Semiconductor 功能描述:2/3 Phase Buck Controller for VR11 Pentium IV Processor Applications |
| NCP5389MNR2G | 功能描述:IC CTLR BUCK 2/3PHASE 32-QFN RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - 专用型 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,000 系列:- 应用:电源，ICERA E400，E450 输入电压:4.1 V ~ 5.5 V 输出数:10 输出电压:可编程 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:42-WFBGA，WLCSP 供应商设备封装:42-WLP 包装:带卷 (TR) |
| NCP5391 | 制造商:ONSEMI 制造商全称:ON Semiconductor 功能描述:2/3 Phase Buck Controller for VR11 Pentium IV Processor Applications |
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