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參數(shù)資料
| 型號： | IR3081 |
| 廠商： | International Rectifier |
| 英文描述： | XPHASE VR 10.0 CONTROL IC |
| 中文描述： | XPHASE村10.0控制IC |
| 文件頁數(shù)： | 6/20頁 |
| 文件大?。?/td> | 396K |
| 代理商： | IR3081 |
IR3081
Page 6 of 20
9/1/03
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 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.
CONTROL BUS
0.1uF
CIN
CCS
RCS
CCS
RCS
0.1uF
VOUT+
VOUT SENSE-
VOUT-
12V
VID3
VID0
VID2
VID4
VOUT SENSE+
POWER GOOD
VR HOT
ENABLE
VID1
VID5
PHASE FAULT
IRU3081
CONTROL
IC
>> BIAS VOLTAGE
>> PHASE TIMING
>> PWM CONTROL
<< CURRENT SENSE
ADDITIONAL PHASES
INPUT/OUTPUT
IRU3086
PHASE
IC
COUT
CURRENT SHARE
CURRENT SHARE
IRU3086
PHASE
IC
>> VID VOLTAGE
PHASE FAULT
PHASE FAULT
PHASE HOT
PHASE HOT
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| IR3081M | XPHASE VR 10.0 CONTROL IC |
| IR3081MTR | XPHASE VR 10.0 CONTROL IC |
| IR3088A | XPHASETM PHASE IC WITH FAULT AND OVERTEMP DETECT |
| IR3088AM | XPHASETM PHASE IC WITH FAULT AND OVERTEMP DETECT |
| IR3088AMTR | XPHASETM PHASE IC WITH FAULT AND OVERTEMP DETECT |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| IR3081A | 制造商:IRF 制造商全稱:International Rectifier 功能描述:XPHASETM VR 10 CONTROL IC |
| IR3081AM | 制造商:IRF 制造商全稱:International Rectifier 功能描述:XPHASETM VR 10 CONTROL IC |
| IR3081AMPBF | 功能描述:IC CTRLR XPHASE VR10.0 28MLPQ RoHS:是 類別:集成電路 (IC) >> PMIC - 電源管理 - 專用 系列:XPhase™ 應(yīng)用說明:Ultrasound Imaging Systems Application Note 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:37 系列:- 應(yīng)用:醫(yī)療用超聲波成像，聲納 電流 - 電源:- 電源電壓:2.37 V ~ 6 V 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:56-WFQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:56-TQFN-EP（8x8） 包裝:管件 |
| IR3081AMPBF | 制造商:International Rectifier 功能描述:Controller IC Package/Case:28-MLPQ |
| IR3081AMTR | 制造商:IRF 制造商全稱:International Rectifier 功能描述:XPHASETM VR 10 CONTROL IC |
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