参数资料
型号: IR3087MPBF
厂商: International Rectifier
文件页数: 7/35页
文件大小: 0K
描述: IC XPHASE W/OVP/TM CTRL 20MLPQ
标准包装: 5
系列: XPhase™
应用: 处理器
电流 - 电源: 10mA
电源电压: 8.4 V ~ 21 V
工作温度: 0°C ~ 125°C
安装类型: 表面贴装
封装/外壳: 20-MLPQ
供应商设备封装: 20-MLPQ(4x4)
包装: 剪切带 (CT)

IR3087PBF
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
control converters of any phase number 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 1, 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.
POWER GOOD
VR HOT
12V
ENABLE
GATE VOLTAGE
REGULATOR
VID5
VID0
VID1
VID2
IR3081A
CONTROL
IC
>> BIAS VOLTAGE
>> PHASE TIMING
<< CURRENT SENSE
BIAS VOLTAGE
PHASE TIMING
CURRENT SHARE
IR3087
CIN
VOUT SENSE+
VOUT+
VID3
VID4
>> PWM CONTROL
>> VID VOLTAGE
PWM CONTROL
VID VOLTAGE
PHASE HOT
PHASE IC
0.1uF
COUT
VOUT-
PHASE FAULT
BIAS VOLTAGE
PHASE TIMING
CURRENT SHARE
IR3087
CCS
RCS
VOUT SENSE-
PWM CONTROL
VID VOLTAGE
PHASE HOT
PHASE IC
0.1uF
CCS
RCS
CONTROL BUS
OC OC OC OC OC OC
ADDITIONAL PHASES
OC OC OC
INPUT/OUTPUT
Figure 1. System Block Diagram
Page 7 of 35
1 /31/05
相关PDF资料
PDF描述
IR3087M IC XPHASE W/OVP/TM CTRL 20-MLPQ
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相关代理商/技术参数
参数描述
IR3087MTR 功能描述:IC XPHASE W/OVP/TM CTRL 20L-MLPQ RoHS:否 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
IR3087MTRPBF 功能描述:IC CONTROLLER PHASE 20MLPQ 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
IR3087PBF 制造商:IRF 制造商全称:International Rectifier 功能描述:XPHASETM PHASE IC WITH OPTI-PHASETM, OVP, AND OVERTEMP DETECT
IR3088 制造商:IRF 制造商全称:International Rectifier 功能描述:XPHASE PHASE IC WITH FAULT AND OVERTEMP DETECT
IR3088A 制造商:IRF 制造商全称:International Rectifier 功能描述:XPHASETM PHASE IC WITH FAULT AND OVERTEMP DETECT