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| 型号： | IR3510MTRPBF |
| 厂商： | International Rectifier |
| 文件页数： | 18/36页 |
| 文件大小： | 0K |
| 描述： | IC XPHASE CONTROL 32-MLPQ |
| 标准包装： | 1 |
| 系列： | XPhase™ |
| 应用： | 处理器 |
| 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： | 标准包装 |
| 产品目录页面： | 1383 (CN2011-ZH PDF) |
| 其它名称： | IR3510MTRPBFDKR |
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IR3510
The limited voltage loop DC gain controls the voltage droop,
Vdroop = (Kv Ki / Gv) Io,
Where, Kv is the voltage feedback divider factor, Ki is current sense gain, and Gv is the voltage loop DC gain.
The average current mode control also provides constant current limit function for the voltage regulator output,
which is a desired feature for redundant power system.
Input Soft-Start for Hot-Swappable applications
For hot-swappable applications, an input control FET in series with the input voltage is required to prevent the
voltage regulator from pulling down the VIN bus during start-up due to large input caps or pre-loaded output. It
controls the slew rate of the input voltage applied to the voltage regulator. It also keeps the input current within the
limit when the voltage regulator has fault or over-load condition. When OV condition occurs on the voltage
regulator output, the input control FET can be turned off to protect the output load.
A current sense resistor in series with the input FET is used to sense the input current. Once the sense current
exceeds the programmed OC threshold, the input control FET is controlled to run in linear mode to limit the
current, so it has larger power loss and can’t be running for a long period of time. A programmable time delay is
normally implemented to prevent false trigger the input OCP and turns off the input control FET when it is time-out.
ORing Control for Redundant Applications
For redundant system application, multiple voltage regulators can be paralleled to provide fault-tolerant output
voltage for critical load. ORing diode was used to isolate the fault module from the output, but its high power loss
prevents it from being used in low voltage high current application. ORing FET is now commonly used in low
voltage high current application, but its reverse conducting current needs to be limited. The reverse current can be
caused by fault or the mismatch between two paralleled output voltages. Thus, the ORing FET control requires a
reverse current comparator and fast turn-off gate driver.
The Rds(on) of Oring FET is normally used to sense the reverse current. To reduce the conductive power loss, low
Rds(on) FET is preferred for Oring application. Also the reverse current needs to be limited no more than 10% of
rated current, otherwise too much energy would be feedback to the input and may cause input OV. Thus, a very
low offset reverse current comparator and fast turn-off Oring gate driver are required.
Page 18 of 36
IR Confidential
May 18, 2009
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相关代理商/技术参数 |
参数描述 |
|---|---|
| IR3513MTRPBF | 功能描述:开关变换器、稳压器与控制器 2 CH OR 2 PHASE SYNC PWM CNTRLR 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 |
| IR3513XMTRPBF | 功能描述:功率驱动器IC RoHS:否 制造商:Micrel 产品:MOSFET Gate Drivers 类型:Low Cost High or Low Side MOSFET Driver 上升时间: 下降时间: 电源电压-最大:30 V 电源电压-最小:2.75 V 电源电流: 最大功率耗散: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 封装:Tube |
| IR3513Z | 制造商:IRF 制造商全称:International Rectifier 功能描述:XPHASE3TM POL CONTROL IC |
| IR3513ZMPBF | 制造商:IRF 制造商全称:International Rectifier 功能描述:XPHASE3TM POL CONTROL IC |
| IR3513ZMTRPBF | 功能描述:开关变换器、稳压器与控制器 2 CH OR 2 PHASE SYNC PWM CNTRLR 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 |
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