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| 型号： | IR3504MTRPBF |
| 厂商： | International Rectifier |
| 文件页数： | 20/42页 |
| 文件大小： | 0K |
| 描述： | IC CTRL XPHASE3 SVID 32-MLPQ |
| 标准包装： | 3,000 |
| 系列： | XPhase3™ |
| 应用： | 处理器 |
| 电流 - 电源： | 10mA |
| 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) |
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on fast-mode I C. SVID commands from an AMD processor are communicated through SVID bus pins SVC and
IR3504
Serial VID Interface Protocol and VID-on-the-fly Transition
The IR3504 supports the AMD SVI bus protocol and the AMD Server and desktop SVI wire protocol which is based
2
SVD. The SVC pin of the IR3504 does not have an open drain output since AMD SVID protocol does not support
slave clock stretching.
The IR3504 transitions from a 2-bit Boot VID mode to SVI mode upon assertion of PWROK. The SMBus send byte
protocol is used by the IR3504 VID-on-the-fly transactions. The IR3504 will wait until it detects a start bit which is
defined as an SVD falling edge while SVC is high. A 7bit address code plus one write bit (low) should then follow
the start bit. This address code will be compared against an internal address table and the IR3504 will reply with an
acknowledge ACK bit if the address is one of the three stored addresses otherwise the ACK bit will not be sent out.
The SVD pin is pulled low by the IR3504 to generate the ACK bit. Table 4 has the list of addresses recognized by
the IR3504.
The processor should then transmit the 8-bit data word immediately following the ACK bit. Data bit 7 is the PSI_L
bit which is followed by the 7Bit AMD code. The IR3504 replies again with an ACK bit once the data is received. If
the received data is not a VID-OFF command, the IR3504 immediately changes the DAC analog outputs to the new
target. VDAC1 and VDAC2 then slew to the new VID voltages. See Figure 12 for a send byte example.
Table 4 - SVI Send Byte Address Table
SVI Address [6:0] + Wr
110xx100b
110xx010b
110xx110b
Description
Set VID only on Output 1
Set VID only on Output 2
Set VID on both Output 1 and Output 2
Note: ‘x’ in the above Table 4 means the bit could be either ‘1’ or ‘0’.
Figure 12 Send Byte Example
Page 20
July 28, 2009
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| IR3506MTRPBF | IC CTRL XPHASE3 DDR 16-MLPQ |
| IR3507MTRPBF | IC XPHASE3 CONTROL 20-MLPQ |
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相关代理商/技术参数 |
参数描述 |
|---|---|
| IR3505 | 制造商:IRF 制造商全称:International Rectifier 功能描述:XPHASE3TM PHASE IC |
| IR3505MPBF | 功能描述:IC XPHASE3 CONTROL 16-MLPQ RoHS:是 类别:集成电路 (IC) >> PMIC - 电源管理 - 专用 系列:XPhase3™ 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 |
| IR3505MTRPBF | 功能描述:开关变换器、稳压器与控制器 XPHASE3 DDR VTT 7V 2A 3 Wire 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 |
| IR3505Z | 制造商:IRF 制造商全称:International Rectifier 功能描述:XPHASE3TM PHASE IC |
| IR3505ZMPBF | 制造商:IRF 制造商全称:International Rectifier 功能描述:XPHASE3TM PHASE IC |
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