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参数资料
| 型号： | IR3523MTRPBF |
| 厂商： | International Rectifier |
| 文件页数： | 22/37页 |
| 文件大小： | 0K |
| 描述： | IC XPHASE3 CTLR VR11.1 40-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： | 40-MLPQ |
| 供应商设备封装： | 40-MLPQ（6x6） |
| 包装： | 带卷 (TR) |
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IR3523
VID
VDAC
OV
1.73V
THRESHOLD
VDAC + 130mV
OUTPUT
VOLTAGE
(VO)
VDAC
50mV
50mV
NORMAL
OPERATION
VID DOWN
LOW VID
VID UP
NORMAL
OPERATION
Figure 15 - Over-voltage protection during dynamic VID
Open Remote Sense Line Protection
If either remote sense line VOSEN X + or VOSEN X - is open, the output of Remote Sense Amplifier (VOUT X ) drops.
The IR3523 continuously monitors the VOUT X pin and if VOUT X is lower than 200 mV, two separate pulse currents
are applied to the VOSEN X + and VOSEN X - pins to check if the sense lines are open. If VOSEN X + is open, a voltage
higher than 90% of V(VCCL) will be present at VOSEN X + pin and the output of Open Line Detect Comparator will
be high. If VOSEN X - is open, a voltage higher than 400mV will be present at VOSEN X - pin and the Open Line
Detect Comparator output will be high. With either sense line open, the Open Sense Line Fault Latch will be set to
force the error amplifier output low and immediately shut down the converter. SS/DEL X will be discharged and the
Open Sense Fault Latch can only be reset by cycling the power to VCCL.
Open Daisy Chain Protection
IR3523 checks the daisy chain every time it powers up. It starts a daisy chain pulse on the PHSOUT pin and
detects the feedback at PHSIN pin. If no pulse comes back after 32 CLKOUT pulses, the pulse is restarted again. If
the pulse fails to come back the second time, the open daisy chain fault is registered, and SS/DEL is not allowed to
charge. The fault latch can only be reset by cycling the power to VCCL.
After powering up, the IR3523 monitors PHSIN pin for a phase input pulse equal or less than the number of phases
detected. If PHSIN pulse does not return within the number of phases in the converter, another pulse is started on
PHSOUT pin. If the second started PHSOUT pulse does not return on PHSIN, an open daisy chain fault is
registered.
Phase Number Determination
After a daisy chain pulse is started, the IR3523 checks the timing of the input pulse at PHSIN pin to determine the
phase number.
Page 22 of 37
June 20, 2008
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相关代理商/技术参数 |
参数描述 |
|---|---|
| IR3527 | 制造商:IRF 制造商全称:International Rectifier 功能描述:XPHASE3TM DUAL PHASE IC |
| IR3527MPBF | 制造商:IRF 制造商全称:International Rectifier 功能描述:XPHASE3TM DUAL PHASE IC |
| IR3527MTRPBF | 功能描述:开关变换器、稳压器与控制器 XPHASE3 Dual Phase 7V 1.3A PMIC 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 |
| IR3529 | 制造商:IRF 制造商全称:International Rectifier 功能描述:XPHASE3TM PHASE IC |
| IR3529MPBF | 制造商:IRF 制造商全称:International Rectifier 功能描述:XPHASE3TM PHASE IC |
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