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参数资料
| 型号： | IRS2500SPBF |
| 厂商： | International Rectifier |
| 文件页数： | 16/22页 |
| 文件大小： | 419K |
| 描述： | IC PFC |
| 产品培训模块： | IRS2500 PFC Control IC Overview |
| 标准包装： | 95 |
| 系列： | * |
IRS2500S
www.irf.com
?2012 International Rectifier
16
PFC Design Equations (for Boost Converter)
Step1: Calculate PFC inductor value:
VBUS
P
f
VAC
VAC
VBUS
L
OUT
MIN
MIN
MIN
PFC
?/DIV>
?/DIV>
?/DIV>
?/DIV>
?/DIV>
?/DIV>
=
2
)
2
(
2
?/DIV>
[Henries] (1)
where,
VBUS = DC bus voltage
MIN
VAC = Minimum rms AC input voltage
= PFC efficiency (typically 0.95)
MIN
f
= Minimum PFC switching frequency at minimum AC input voltage
OUT
P
= Ballast output power
Step 2: Calculate peak PFC inductor current:
?/DIV>
?/DIV>
?/DIV>
?/DIV>
=
MIN
OUT
PK
VAC
P
i
2
2
[Amps Peak] (2)
Note: The PFC inductor must not saturate at
PK
i over the specified ballast operating temperature range. Proper core sizing
and air-gapping should be considered in the inductor design.
Step 3: Calculate PFC over-current resistor ROC value:
PK
OC
i
VOCTH
R =
where VOCTH = 1.1V [Ohms] (3)
Step 4: Calculate start-up resistor RVCC value:
IQCCUV
VAC
R
PK
MIN
VCC
10
+
=
[Ohms] (4)
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相关代理商/技术参数 |
参数描述 |
|---|---|
| IRS2500STRPBF | 功能描述:功率因数校正 IC PFC controller IC RoHS:否 制造商:Fairchild Semiconductor 开关频率:300 KHz 最大功率耗散: 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 封装:Reel |
| IRS2500STRPBF-CUT TAPE | 制造商:IR 功能描述:IRS2500 Series Fully Integrated Fully Protected PFC SMPS Control IC - SOIC-8 |
| IRS2505LPBF | 制造商:IRF 制造商全称:International Rectifier 功能描述:SOT-23 Boost PFC Control IC |
| IRS2505LTRPBF | 制造商:International Rectifier 功能描述:PFC BOOST IC - Tape and Reel 制造商:International Rectifier 功能描述:IC PFC MOSFET SOT-23-5 制造商:International Rectifier 功能描述:IRS2505 Series 14 V 10 mA 20.8 VCLAMP 250 mW Boost PFC Control IC - SOT-23-5 制造商:International Rectifier 功能描述:Power Factor Correction - PFC CTRL IC Boost PFC 20.8V VCC 25mA 250mW 制造商:International Rectifier 功能描述:T&R / PFC Boost IC |
| IRS25091SPBF | 功能描述:功率驱动器IC Half-Bridge Driver 600V 10V to 20V RoHS:否 制造商:Micrel 产品:MOSFET Gate Drivers 类型:Low Cost High or Low Side MOSFET Driver 上升时间: 下降时间: 电源电压-最大:30 V 电源电压-最小:2.75 V 电源电流: 最大功率耗散: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 封装:Tube |
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