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| 型号： | IR3093MTRPBF |
| 厂商： | International Rectifier |
| 文件页数： | 23/39页 |
| 文件大小： | 0K |
| 描述： | IC CTLR 3PHASE VR10 48-MLQP |
| 标准包装： | 3,000 |
| 应用： | VID 电压编程器 |
| 电源电压： | 7.4 V ~ 21 V |
| 电流 - 电源： | 38mA |
| 工作温度： | 0°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 48-MLPQ |
| 供应商设备封装： | 48-MLPQ（7x7） |
| 包装： | 带卷 (TR) |
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IR3093PbF
AMD specifies the acceptable power supply regulation window as ±50mV around their specified VID tables. VR-
10.0 specifies the VID table voltages as the absolute maximum power supply voltage. In order to have all three
DAC options, the OPTERON and ATHLON DAC output voltages are pre-positioned 50mV higher than listed in AMD
specs. During testing, a series resistor is placed between EAOUT and FB to cancel the additional 50mV out of the
DAC. The FB bias current, equal to IROSC, develops the 50mV cancellation voltage. Trimming the VDAC voltage
by monitoring V(EAOUT) with this 50mV cancellation resistor in circuit also trims out errors in the FB bias current.
The VDRP pin voltage represents the average current of the converter plus the DAC voltage. The load current can
be retrieved by subtracting the VDAC voltage from the VDRP voltage.
VDAC
CDAC
RDAC
VOSNS-
FB
VDAC
ERROR AMPLIFIER
RCOMP
CCOMP
IROSC
VDAC
VDRP
EAOUT
IROSC
IDRP RDRP
- V(CSav g) +
VDRP BUFFER
VDAC
X23.5
X23.5
-
+
-
+
CSINM3
CSINP3
CSINM2
CSINP2
VDAC
X23.5
-
+
CSINM1
CSINP1
+ VPOSITIONING -
VOUT SENSE+
RFB
VOUT SENSE-
Figure 9 - Adaptive voltage positioning
A resistor R FB between FB pin and the converter output is used to create output voltage offset V O_NLOFST which is
the difference between V DAC voltage and output voltage at no load condition. An internal current source whose
value is programmed by the same external resistor that programs the oscillator frequency, R ROSC , pumps current I FB
out of the FB pin.
The VDRP pin is connected to the FB pin through the Adaptive Voltage Positioning Resistor R DRP. Adaptive voltage
positioning lowers the converter voltage by R O *I O, where R O is the required output impedance of the converter. R FB
and R DRP are determined by (12) and (13) respectively, where R O is the required output impedance of the
converter.
Page 23 of 39
R FB
V O _ NLOFST
I FB
(12)
09/08/05
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相关代理商/技术参数 |
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|---|---|
| IR3094MPBF | 功能描述:IC REG CTRLR BUCK PWM VM 48MLPQ RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 切换控制器 系列:- 标准包装:4,000 系列:- PWM 型:电压模式 输出数:1 频率 - 最大:1.5MHz 占空比:66.7% 电源电压:4.75 V ~ 5.25 V 降压:是 升压:无 回扫:无 反相:无 倍增器:无 除法器:无 Cuk:无 隔离:无 工作温度:-40°C ~ 85°C 封装/外壳:40-VFQFN 裸露焊盘 包装:带卷 (TR) |
| IR3094MTRPBF | 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 |
| IR3094PBF | 制造商:IRF 制造商全称:International Rectifier 功能描述:3 PHASE PWM CONTROLLER FOR POINT OF LOAD |
| IR30BQ060TR | 制造商:International Rectifier 功能描述: |
| IR3101 | 功能描述:马达/运动/点火控制器和驱动器 Half-Bridge FredFET iMotion 1.6A 500V RoHS:否 制造商:STMicroelectronics 产品:Stepper Motor Controllers / Drivers 类型:2 Phase Stepper Motor Driver 工作电源电压:8 V to 45 V 电源电流:0.5 mA 工作温度:- 25 C to + 125 C 安装风格:SMD/SMT 封装 / 箱体:HTSSOP-28 封装:Tube |
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