参数资料
型号: IR3081AMPBF
厂商: International Rectifier
文件页数: 15/39页
文件大小: 0K
描述: IC CTRLR XPHASE VR10.0 28MLPQ
标准包装: 100
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: 28-MLPQ
供应商设备封装: 28-MLPQ(5x5)
包装: 剪切带 (CT)
IR3081A
Control IC
Error
Phase IC
Current Sense
VDAC
Amplifier
EAOUT
FB
Vo
ISHARE
VDAC
10k
Amplifier
CSIN+
CSIN-
IFB
RFB
RDRP
VDRP
Amplifier
VDRP
Phase IC
Current Sense
-
+
IIN
ISHARE
Amplifier
CSIN+
CSIN-
VDAC
10k
Figure 8. Adaptive voltage positioning
Inductor DCR Temperature Correction
If the thermal compensation of the inductor DCR provided by the temperature dependent gain of the current sense
amplifier is not adequate, a negative temperature coefficient (NTC) thermistor can be used for additional correction.
The thermistor should be placed close to the inductor and connected in parallel with the feedback resistor, as
shown in Figure 9. The resistor in series with the thermistor is used to reduce the nonlinearity of the thermistor. A
similar network must be placed on the BBFB to ensure proper operation during a transition to a lower VID code with
Body Braking TM .
Control IC
Error
VDAC
Amplifier
EAOUT
IFB
FB
RFB
RFB2
Rt
Vo
AVP
Amplifier
-
+
VDRP
IIN
RDRP
Figure 9. Temperature compensation of inductor DCR
Remote Voltage Sensing
To reduce the effect of impedance in the ground plane, the VOSNS- pin is used for remote sensing and connected
directly to the load. The VDAC voltage is referenced to VOSNS- to avoid additional error terms or delay related to a
separate differential amplifier. The capacitor connecting the VDAC and VOSNS- pins ensure that high speed
transients are fed directly into the error amplifier without delay.
Page 15 of 39
1/31 /05
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相关代理商/技术参数
参数描述
IR3081AMPBF 制造商:International Rectifier 功能描述:Controller IC Package/Case:28-MLPQ
IR3081AMTR 制造商:IRF 制造商全称:International Rectifier 功能描述:XPHASETM VR 10 CONTROL IC
IR3081AMTRPBF 功能描述:开关变换器、稳压器与控制器 XPHASE VR 10.0 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
IR3081M 功能描述:IC PHASE CONTROLLER 28-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
IR3081MPBF 功能描述:IC PHASE CONTROLLER 28MLPQ 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