- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄384487 > IR3080M (International Rectifier) XPHASE VRD10 CONTROL IC WITH VCCVID & OVERTEMP DETECT PDF資料下載
參數(shù)資料
| 型號： | IR3080M |
| 廠商： | International Rectifier |
| 英文描述： | XPHASE VRD10 CONTROL IC WITH VCCVID & OVERTEMP DETECT |
| 中文描述： | XPHASE VRD10控制集成電路VCCVID |
| 文件頁數(shù)： | 9/41頁 |
| 文件大小： | 2267K |
| 代理商： | IR3080M |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁當前第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁
IR3080
R
C
CLK1
VVALLEY (1.00V)
P
VPHASE1&8 (1.5V)
VPHASE3&6 (3.5V)
VPHASE2&7 (2.5V)
VPHASE4&5 (4.5V)
VPEAK (5.0V)
CLK2
50% RAMP
CLK3
CLK4
CLK5
CLK6
CLK7
CLK8
SLOPE = 80mV / % DC
SLOPE = 1.6mV / ns @ 200kHz
SLOPE = 8.0mV / ns @ 1MHz
Figure 3. 8 Phase Oscillator Waveforms
PWM Operation
The PWM comparator is located in the Phase IC. Upon receiving a clock pulse, the PWM latch is set; the PWMRMP
voltage begins to increase; the low side driver is turned off, and the high side driver is then turned on after the non-
overlap time. When the PWMRMP voltage exceeds the Error Amplifier’s output voltage, the PWM latch is reset.
This turns off the high side driver and then turns on the low side driver after the non-overlap time; it activates the
Ramp Discharge Clamp, which quickly discharges the PWMRMP capacitor to the VDAC voltage of the Control IC
until the next clock pulse.
The PWM latch is reset dominant allowing all phases to go to zero duty cycle within a few tens of nanoseconds in
response to a load step decrease. Phases can overlap and go to 100% duty cycle in response to a load step
increase with turn-on gated by the clock pulses. An Error Amplifier output voltage greater than the common mode
input range of the PWM comparator results in 100% duty cycle regardless of the voltage of the PWM ramp. This
arrangement guarantees the Error Amplifier is always in control and can demand 0 to 100% duty cycle as required.
It also favors response to a load step decrease which is appropriate given the low output to input voltage ratio of
most systems. The inductor current will increase much more rapidly than decrease in response to load transients.
This control method is designed to provide “single cycle transient response” where the inductor current changes in
response to load transients within a single switching cycle maximizing the effectiveness of the power train and
minimizing the output capacitor requirements. An additional advantage of the architecture is that differences in
ground or input voltage at the phases have no effect on operation since the PWM ramps are referenced to VDAC.
Figure 4 depicts PWM operating waveforms under various conditions.
Page 9 of 41
9
/30/04
相關PDF資料 |
PDF描述 |
|---|---|
| IR3081 | XPHASE VR 10.0 CONTROL IC |
| 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 |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| IR3080MPBF | 功能描述:IC PHASE CONTROLLER 32MLPQ RoHS:是 類別:集成電路 (IC) >> PMIC - 電源管理 - 專用 系列:XPhase™ 應用說明:Ultrasound Imaging Systems Application Note 產(chǎn)品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:37 系列:- 應用: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 供應商設備封裝:56-TQFN-EP（8x8） 包裝:管件 |
| IR3080MPBF | 制造商:International Rectifier 功能描述:Controller IC Package/Case:32-MLPQ |
| IR3080MTR | 功能描述:IC PHASE CONTROLLER 32L MLPQ RoHS:否 類別:集成電路 (IC) >> PMIC - 電源管理 - 專用 系列:XPhase™ 應用說明:Ultrasound Imaging Systems Application Note 產(chǎn)品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:37 系列:- 應用: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 供應商設備封裝:56-TQFN-EP（8x8） 包裝:管件 |
| IR3080MTRPBF | 功能描述:開關變換器、穩(wěn)壓器與控制器 XPHASE VRD10 CTRL IC CTRL IC 200 to 700mV RoHS:否 制造商:Texas Instruments 輸出電壓:1.2 V to 10 V 輸出電流:300 mA 輸出功率: 輸入電壓:3 V to 17 V 開關頻率:1 MHz 工作溫度范圍: 安裝風格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel |
| IR3080PBF | 制造商:IRF 制造商全稱:International Rectifier 功能描述:XPHASETM VRD10 CONTROL IC WITH VCCVID & OVERTEMP DETECT |
發(fā)布緊急采購，3分鐘左右您將得到回復。