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参数资料
| 型号： | IR3504MTRPBF |
| 厂商： | International Rectifier |
| 文件页数： | 22/42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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IR3504
Figure 14 VCCL regulator stability with 5 phases and PHSOUT equals 750 kHz
VCCL Under Voltage Lockout (UVLO)
The IR3504 does not directly monitor VCC for under voltage lockout but instead monitors the system VCCL supply
voltage since this voltage is used for the gate drive. As VCC begins to rise during power up, the VCCLDRV pin will
be high impedance therefore allowing VCCL to roughly follow VCC-NPN VBE until VCCL is above 94% of the voltage
set by resistor divider at VCCLFB pin. At this point, the OV X and UV CLEARED fault latches will be released. If
VCCL voltage drops below 86% of the set value, the SS/DEL CLEARED fault latch will be set.
VID OFF Codes
SVID OFF codes of 111_1100, 111_1101, 111_1110, and 111_1111 turn off the converter by pulling down EAOUT X
voltage and discharging SS/DEL X through the 50uA discharge current, but do not drive PG low. Upon receipt of a
non-off SVID code the converter will turn on and transition to the voltage represented by the SVID as shown in
Figure 10.
Voltage Regulator Ready (PG)
The PG pin is an open-collector output and should have an external pull-up resistor. During soft start, PG remains
low until the output voltage is in regulation and SS/DEL X is above 3.9V. The PG pin becomes low if ENABLE is low,
VCCL is below 86% of target, an over current condition occurs for at least 1024 PHSOUT clocks prior to PG, an
over current condition occurs after PG and SS/DEL X discharges to the delay threshold, an open phase timing daisy
chain condition occurs, VOSNS lines are detected open, VOUT X is 315mV below VDAC X , or if the error amp is
sensed as operating open loop for 8 PHSOUT cycles. A high level at the PG pin indicates that the converter is in
operation with no fault and ensures the output voltage is within the regulation.
PG monitors the output voltage. If any of the voltage planes fall out of regulation, PG will become low, but the VR
continues to regulate its output voltages. The PWROK input may or may not de-assert prior to the voltage planes
falling out of specification. Output voltage out of spec is defined as 315mV to 275mV below nominal voltage. VID
on-the-fly transition which is a voltage plane transitioning between one voltage associated with one VID code and a
voltage associated with another VID code is not considered to be out of specification.
A PWROK de-assert while ENABLE is high results in all planes regulating to the previously stored 2-bit Boot VID. If
the 2-bit Boot VID is higher than the VID prior to PWROK de-assertion, this transition will NOT be treated as VID on-
the-fly and if either of the two outputs is out of spec high, PG will be pulled down.
Page 22
July 28, 2009
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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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