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参数资料
| 型号： | IR3503MTRPBF |
| 厂商： | International Rectifier |
| 文件页数： | 25/39页 |
| 文件大小： | 0K |
| 描述： | IC CTRL XPHASE VR11.0/1 32-MLPQ |
| 标准包装： | 1 |
| 系列： | XPhase3™ |
| 应用： | 处理器 |
| 电流 - 电源： | 8mA |
| 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： | 标准包装 |
| 其它名称： | IR3503MTRPBFDKR |
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IR3503
VID
(FAST
VDAC)
VDAC
OV
1.73V
THRESHOLD
VDAC + 130mV
OUTPUT
VOLTAGE
(VO)
VDAC
50mV
50mV
NORMAL
OPERATION
VID DOWN
LOW VID
VID UP
NORMAL
OPERATION
Figure 16: Over voltage protection during dynamic VID transition
VID Fault Codes
VID codes of 0000000X and 1111111X for VR11 will set the fault latch and disable the error amplifier. A 1.3 μ s
delay is provided to prevent a fault condition from occurring during Dynamic VID changes. A VID FAULT condition is
latched with boot voltage and can only be cleared by cycling power to VCCL or re-issuing ENABLE.
Voltage Regulator Ready (VRRDY)
The VRRDY pin is an open-collector output and should be pulled up to a voltage source through a resistor. After the
soft start completion cycle, the VRRDY remains high until the output voltage is in regulation and SS/DEL is above
3.92 V. The VRRDY pin becomes low if the fault latch, over voltage latch, open sense line latch, or open daisy chain
is set. A high level at the VRRDY pin indicates that the converter is in operation and has no fault. The VRRDY stays
high as long as the output voltage is within 300 mV of the programmed VID. During start-up, it is pulled low with an
input voltage as low as 2 V. It stays low until the startup sequence has completed, and the output voltage has
moved to the programmed VID.
Open Voltage Loop Detection
The output voltage range of error amplifier is detected all the time to ensure the voltage loop is in regulation. If any
fault condition forces the error amplifier output above VCCL-1.08 V for 8 switching cycles, the fault latch is set. The
fault latch can only be cleared by cycling power to VCCL.
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 IR3503 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 700 mV 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. During dynamic VID down, OVP may be triggered when output voltage can not follow
Page 25 of 39
February 12, 2010
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相关代理商/技术参数 |
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|---|---|
| IR3504MPBF | 制造商:International Rectifier 功能描述:Control IC 32-Pin MLPQ Strip |
| IR3504MTRPBF | 功能描述:开关变换器、稳压器与控制器 X-PHASE IR3504 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 |
| 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 |
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