参数资料
| 型号： | IR3084MTRPBF |
| 厂商： | International Rectifier |
| 文件页数： | 7/45页 |
| 文件大小： | 0K |
| 描述： | IC CTLR XPHASE 28-MLPQ |
| 产品变化通告： | (EP) Parts Discontinuation 25/May/2012 |
| 标准包装： | 3,000 |
| 系列： | XPhase™ |
| 应用： | 处理器 |
| 电流 - 电源： | 14mA |
| 电源电压： | 9.5 V ~ 16 V |
| 工作温度： | 0°C ~ 100°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 28-MLPQ |
| 供应商设备封装： | 28-MLPQ（5x5） |
| 包装： | 带卷 (TR) |
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IR3084
SYSTEM THEORY OF OPERATION
XPhase TM Architecture
The XPhase TM architecture is designed for multiphase interleaved buck converters which are used in
applications requiring small size, design flexibility, low voltage, high current and fast transient response. The
architecture can be used in any multiphase converter ranging from 1 to 16 or more phases where flexibility
facilitates the design trade ? off of multiphase converters. The scalable architecture can be applied to other
applications which require high current or multiple output voltages.
As shown in Figure 2, the XPhase TM architecture consists of a Control IC and a scalable array of phase
converters each using a single Phase IC. The Control IC communicates with the Phase ICs through a 5 ? wire
analog bus, i.e. bias voltage, phase timing, average current, error amplifier output, and VID voltage. The Control
IC incorporates all the system functions, i.e. VID, PWM ramp oscillator, error amplifier, bias voltage, and fault
protections etc. The Phase IC implements the functions required by the converter of each phase, i.e. the gate
drivers, PWM comparator and latch, over ? voltage protection, and current sensing and sharing.
There is no unused or redundant silicon with the XPhase TM architecture compared to others such as a 4 phase
controller that can be configured for 2, 3, or 4 phase operation. PCB Layout is easier since the 5 wire bus
eliminates the need for point ? to ? point wiring between the Control IC and each Phase. The critical gate drive and
current sense connections are short and local to the Phase ICs. This improves the PCB layout by lowering the
parasitic inductance of the gate drive circuits and reducing the noise of the current sense signal.
VR READY
PHASE FAULT
VR HOT
VR FAN
12V
ENABLE
VIDSEL
VID7
PHASE FAULT
VID6
VID5
IR3084
CONTROL
IC
>> BIAS VOLTAGE
>> PHASE TIMING
CIN
VOUT SENSE+
VID4
VID3
VID2
<< CURRENT SENSE
>> PWM CONTROL
>> VID VOLTAGE
CURRENT SHARE
IR3086
PHASE
IC
COUT
VOUT+
VOUT-
VID1
VID0
CCS
RCS
VOUT SENSE-
PHASE FAULT
CURRENT SHARE
IR3086
PHASE
IC
CCS
RCS
ADDITIONAL PHASES
CONTROL BUS
INPUT/OUTPUT
Figure 2 – System Block Diagram
Page 7 of 45
03/4/2009
相关PDF资料 |
PDF描述 |
|---|---|
| IR3084UMPBF | IC XPHASE CONTROL 28-MLPQ |
| IR3086AMPBF | IC PHASE CONTROLLER OVP 20MLPQ |
| IR3086MPBF | IC CONTROLLER PHASE 20MLPQ |
| IR3087MPBF | IC XPHASE W/OVP/TM CTRL 20MLPQ |
| IR3087M | IC XPHASE W/OVP/TM CTRL 20-MLPQ |
相关代理商/技术参数 |
参数描述 |
|---|---|
| IR3084U | 制造商:IRF 制造商全称:International Rectifier 功能描述:XPHASETM VR10, VR11 & OPTERON/ATHLON64 CONTROL IC |
| IR3084UMPBF | 功能描述:IC XPHASE CONTROL 28-MLPQ RoHS:是 类别:集成电路 (IC) >> PMIC - 电源管理 - 专用 系列:XPhase™ 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 |
| IR3084UMTRPBF | 功能描述:开关变换器、稳压器与控制器 VR10 VR11 Athlon64 XPHASE 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 |
| IR3086 | 制造商:IRF 制造商全称:International Rectifier 功能描述:PHASE IC WITH OVP, FAULT AND OVERTEMP DETECT |
| IR3086A | 制造商:IRF 制造商全称:International Rectifier 功能描述:XPHASETM PHASE IC WITH OVP, FAULT AND OVERTEMP DETECT |
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