参数资料
| 型号： | IR3500MPBF |
| 厂商： | International Rectifier |
| 文件页数： | 26/47页 |
| 文件大小： | 0K |
| 描述： | IC XPHASE3 CONTROL 32-MLPQ |
| 标准包装： | 100 |
| 系列： | XPhase3™ |
| 应用： | 处理器 |
| 电流 - 电源： | 6.5mA |
| 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： | 剪切带 (CT) |
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IR3500
12V
VCC
VCCL+0.7V
VCCL+0.7V
VCCLDRV
OUTPUT
VOLTAGE
(VOSEN+)
1.73V
VID + 0.13V
VCCL UVLO
VCCL - 1V
ROSC/OVP
0.6V
3.92V (4V-0.08V)
SS/DEL
Figure 18 - Over-voltage protection with pre-charging converter output VID + 0.13V <Vo < 1.73V
During dynamic VID down, OVP may be triggered when output voltage can not follow VDAC voltage change at light
load with large output capacitance. Therefore, over-voltage threshold is raised to 1.73V from VDAC+130mV
whenever dynamic VID is detected and the difference between output voltage and VDAC is more than 50mV, as
shown in Figure 19. The over-voltage threshold is changed back to VDAC+130mV if the difference is smaller than
50mV.
The overall system must be considered when designing for OVP. In many cases the over-current protection of the
AC-DC or DC-DC converter supplying the multiphase converter will be triggered and provide effective protection
without damage as long as all PCB traces and components are sized to handle the worst-case maximum current. If
this is not possible, a fuse can be added in the input supply to the multiphase converter.
Open Remote Sense Line Protection
If either remote sense line VOSEN+ or VOSEN- or both are open, the output of remote sense amplifier (VO) drops.
The IR3500 monitors VO pin voltage continuously. If VO voltage is lower than 200 mV, two separate pulse currents
are applied to VOSEN+ and VOSEN- pins respectively to check if the sense lines are open. If VOSEN+ is open, a
voltage higher than 90% of V(VCCL) will be present at VOSEN+ pin and the output of open line detect comparator
will be high. If VOSEN- is open, a voltage higher than 700mV will be present at VOSEN- pin and the output of open-
line-detect comparator will be high. The open sense line fault latch is set, which pulls error amplifier output low
immediately and shut down the converter. The SS/DEL voltage is discharged and the fault latch can only be reset
by cycling VCCL power.
Page 26 of 47
May 18, 2009
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| IR3500VMTRPBF | IC XPHASE3 CTLR VR11.1 32-MLPQ |
| IR3502AMTRPBF | IC XPHASE CTRL VR11.0/1 32-MLPQ |
| IR3502BMTRPBF | IC REG XPH INTEL VR11.1 32-MLPQ |
| IR3502MTRPBF | IC XPHASE3 CONTROLLER 32-MLPQ |
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相关代理商/技术参数 |
参数描述 |
|---|---|
| IR3500MTRPBF | 功能描述:开关变换器、稳压器与控制器 COMPLETE VR11.0 OR AMD PVID PWR SOLTION 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 |
| IR3500V | 制造商:IRF 制造商全称:International Rectifier 功能描述:XPHASE3TM VR11.1 CPU VTT CONTROL IC |
| IR3500VMPBF | 制造商:IRF 制造商全称:International Rectifier 功能描述:XPHASE3TM VR11.1 CPU VTT CONTROL IC |
| IR3500VMTRPBF | 功能描述:开关变换器、稳压器与控制器 X-PHASE IR3500V AMD SVID CTRL IC 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 |
| IR3502 | 制造商:IRF 制造商全称:International Rectifier 功能描述:XPHASE3TM CONTROL IC |
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