参数资料
| 型号： | IR3080M |
| 厂商： | International Rectifier |
| 文件页数： | 8/41页 |
| 文件大小： | 0K |
| 描述： | IC PHASE CONTROLLER 32-MLPQ |
| 标准包装： | 5 |
| 系列： | XPhase™ |
| 应用： | 处理器 |
| 电流 - 电源： | 11mA |
| 电源电压： | 9.5 V ~ 14 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： | 剪切带 (CT) |
| 其它名称： | *IR3080M |
第1页第2页第3页第4页第5页第6页第7页当前第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页第33页第34页第35页第36页第37页第38页第39页第40页第41页
IR3080
PWM Control Method
The PWM block diagram of the XPhase TM architecture is shown in Figure 2. Feed-forward voltage mode control with
trailing edge modulation is used. A high-gain wide-bandwidth voltage type error amplifier in the Control IC is used
for the voltage control loop. An external RC circuit connected to the input voltage and ground is used to program the
slope of the PWM ramp and to provide the feed-forward control at each phase. The PWM ramp slope will change
with the input voltage and automatically compensate for changes in the input voltage. The input voltage can change
due to variations in the silver box output voltage or due to wire and PCB-trace voltage drop related to changes in
load current.
VIN
CONTROL IC
SYSTEM
PHASE IC
50%
DUTY
CYCLE
RAMP GENERATOR
VPEAK
VVALLEY
RMPOUT
RPHS1
BIASIN
RAMPIN+
RAMPIN-
REFERENCE
VOLTAGE
CLOCK
PULSE
GENERATOR
PWM
COMPARATOR
PWM
LATCH
S
RESET
DOMINANT
GATEH
VOSNS+
VOUT
+
-
VBIAS
REGULATOR
VDAC
VBIAS
VDAC
VOSNS-
EAOUT
RPHS2
RPWMRMP
CPWMRMP
EAIN
PWMRMP
SCOMP
CSCOMP
SHARE
ADJUST
-
+
ENABLE
RAMP
DISCHARGE
CLAMP
R
BODY
BRAKING
COMPARATOR
GATEL
COUT
GND
VOSNS-
ERROR
ERROR
AMPLIFIER
X
0.91
IFB
AMP
IROSC
FB
RVFB
RDRP
ISHARE
10K
+
-
20mV
CURRENT
SENSE
AMPLIFIER
X34
CSIN+
CSIN-
CCS
RCS
VDRP
AMP
VDRP
IIN
DACIN
SYSTEM
PHASE IC
BIASIN
REFERENCE
VOLTAGE
PWM
RPHS1
RAMPIN+
RAMPIN-
EAIN
CLOCK
PULSE
GENERATOR
PWM
COMPARATOR
-
+
LATCH
S
RESET
DOMINANT
R
GATEH
GATEL
RPHS2
ENABLE
RPWMRMP
PWMRMP
BODY
CPWMRMP
SCOMP
CSCOMP
SHARE
ADJUST
RAMP
DISCHARGE
CLAMP
BRAKING
COMPARATOR
ERROR
AMPLIFIER
X
0.91
ISHARE
10K
+
20mV
CURRENT
SENSE
AMPLIFIER
CSIN+
-
X34
CSIN-
CCS
RCS
DACIN
Figure 2. PWM Block Diagram
Frequency and Phase Timing Control
The oscillator is located in the Control IC and its frequency is programmable from 150kHz to 1MHZ by an external
resistor. The output of the oscillator is a 50% duty cycle triangle waveform with peak and valley voltages of
approximately 5V and 1V respectively. This signal is used to program both the switching frequency and phase
timing of the Phase ICs. The Phase IC is programmed by resistor divider R PHS1 and R PHS2 connected between the
VBIAS reference voltage and the Phase IC LGND pin. A comparator in the Phase ICs detects the crossing of the
oscillator waveform over the voltage generated by the resistor divider and triggers a clock pulse that starts the PWM
cycle. The peak and valley voltages track the VBIAS voltage reducing potential Phase IC timing errors. Figure 3
shows the Phase timing for an 8 phase converter. Note that both slopes of the triangle waveform can be used for
phase timing by swapping the RMPIN+ and RMPIN– pins, as shown in Figure 2.
Page 8 of 41
9 /30/04
相关PDF资料 |
PDF描述 |
|---|---|
| IR3081AMPBF | IC CTRLR XPHASE VR10.0 28MLPQ |
| IR3081AMTRPBF | IC CTRLR XPHASE VR10.0 28MLPQ |
| IR3081MPBF | IC PHASE CONTROLLER 28MLPQ |
| IR3081M | IC PHASE CONTROLLER 28-MLPQ |
| IR3082AMTRPBF | IC XPHASE CONTROL 9.6V 20-MLPQ |
相关代理商/技术参数 |
参数描述 |
|---|---|
| IR3080MPBF | 功能描述:IC PHASE CONTROLLER 32MLPQ 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 |
| 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 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 |
| IR3080MTRPBF | 功能描述:开关变换器、稳压器与控制器 XPHASE VRD10 CTRL IC CTRL IC 200 to 700mV 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 |
| IR3080PBF | 制造商:IRF 制造商全称:International Rectifier 功能描述:XPHASETM VRD10 CONTROL IC WITH VCCVID & OVERTEMP DETECT |
发布紧急采购，3分钟左右您将得到回复。