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参数资料
| 型号： | IR3093MPBF |
| 厂商： | International Rectifier |
| 文件页数： | 27/39页 |
| 文件大小： | 0K |
| 描述： | IC VID VOLTAGE PROGRAMMER 48MLPQ |
| 标准包装： | 100 |
| 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： | 剪切带 (CT) |
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IR3093PbF
R COMP
( 2 S f C 1 ) 2 L E C E R FB
V IN F M
(17)
C COMP
10 L E C E
R COMP
(18)
C CP1 is optional and may be needed in some applications to reduce the jitter caused by the high frequency noise.
A ceramic capacitor between 10pF and 220pF is usually enough. In equation (17), V IN is the input voltage, F M is
the PWM comparator gain (refer to equation (25)).
Type III Compensation
Determine the compensation at no load, the worst case condition. Assume the time constant of the resistor and
capacitor across the output inductors matches that of the inductor, the crossover frequency of the voltage loop can
be estimated by Equations (19).
2 S * C E G CS * R FB R LE
f C
R DRP
(19)
Choose the desired crossover frequency fc1 around fc estimated by Equation (19). Select other components to
ensure the slope of close loop gain is -20dB/Dec around the crossover frequency. Choose resistor R FB1 according
to Equation (20), and determine C FB and C DRP from Equations (21) and (22).
R FB 1
1
2
R FB
to
R FB 1
2
3
R FB
(20)
4 S f C 1 R FB 1
C FB
C DRP
1
( R FB R FB 1 ) C FB
R DRP
(21)
(22)
R COMP and C COMP have limited effect on the crossover frequency, and are used only to fine tune the crossover
frequency and transient load response. Determine R COMP and C COMP from Equations (23) and (24), where F M is
the PWM comparator gain defined by Equation (25).
R COMP
( 2 S f C 1 ) 2 L E C E R FB
V I F M
(23)
C COMP
F M
10 L E C E
R COMP
V O
V I * V RAMP
(24)
(25)
C CP1 is optional and may be needed in some applications to reduce the jitter caused by the high frequency noise.
A ceramic capacitor between 10pF and 220pF is usually enough.
Page 27 of 39
09/08/05
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相关代理商/技术参数 |
参数描述 |
|---|---|
| IR3093MTR | 制造商:IRF 制造商全称:International Rectifier 功能描述:3 PHASE OPTERON, ATHLON, OR VR10.X CONTROL IC |
| IR3093MTRPBF | 功能描述:IC CTLR 3PHASE VR10 48-MLQP RoHS:是 类别:集成电路 (IC) >> PMIC - 电源控制器，监视器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,500 系列:- 应用:多相控制器 输入电压:- 电源电压:9 V ~ 14 V 电流 - 电源:- 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:40-WFQFN 裸露焊盘 供应商设备封装:40-TQFN-EP（5x5） 包装:带卷 (TR) |
| 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 |
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