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参数资料
| 型号： | IR3093MTRPBF |
| 厂商： | International Rectifier |
| 文件页数： | 13/39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
Since the voltage drop in the body diode is often higher than output voltage, the inductor current slew rate can be
increased by 2X or more. This patent pending technique is referred to as “body braking” and is accomplished through
the “0% Duty Cycle Comparator”. If the Error Amplifier’s output voltage drops below 0.47V, this comparator turns off
the low side gate driver.
Figure 4 depicts PWM operating waveforms under various conditions
CLK1
PULSE
EAOUT
PWM
Ramp1
GATEH1
GATEL1
0.6V
0.47V
STEADY-STATE
OPERATION
DUTY CYCLE INCREASE
DUE TO LOAD
DUTY CYCLE DECREASE DUE TO LOAD
DECREASE (BODY BRAKING) OR FAULT
STEADY-STATE
OPERATION
INCREASE
Figure 4 – PWM Operating Waveforms
Current Sense Amplifier
A high speed differential current sense amplifier is shown in Figure 5. Its gain decreases with increasing temperature
and is nominally 23.5 at 25oC and 20.4 at 125oC (-1400 ppm/oC). This reduction of gain tends to compensate the 3850
ppm/oC increase in inductor DCR. Since in most designs the IR3093 IC junction is hotter than the inductors these two
effects tend to cancel such that no additional temperature compensation of the load line is required.
The current sense amplifier can accept positive differential input up to 75mV and negative up to -25mV before clipping.
The output of the current sense amplifier is summed with the DAC voltage which is used for over current protection,
voltage positioning and current sharing.
v L
CO
i L
CSA
L
R s
R L
C s
v c
V o
C o
Figure 5 – Inductor Current Sensing and Current Sense Amplifier
Page 13 of 39
09/08/05
相关PDF资料 |
PDF描述 |
|---|---|
| IR3094MPBF | IC REG CTRLR BUCK PWM VM 48MLPQ |
| IR3220S | IC H-BRIDGE 45V 6A 20SOIC |
| IR3310STRR | IC SWITCH HI-SIDE 1CH D2-PAK-5 |
| IR3311STRR | IC SWITCH HI SIDE D2PAK |
| IR3312STRR | IC SWITCH HI-SIDE 4TERM D2-PAK-5 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| 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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