参数资料
| 型号： | UCC28051EVM |
| 厂商： | Texas Instruments |
| 文件页数： | 12/32页 |
| 文件大小： | 0K |
| 描述： | EVAL MODULE FOR UCC28051 |
| 标准包装： | 1 |
| 主要目的： | 电源管理，功率因数校正 |
| 嵌入式： | 否 |
| 已用 IC / 零件： | UCC28051 |
| 主要属性： | 100 W，85 ~ 265 VAC 输入，400 VDC 稳压输出 |
| 已供物品： | 板 |
| 产品目录页面： | 1052 (CN2011-ZH PDF) |
| 相关产品： | UCC38051PE4-ND - IC PFC CTRLR TRANSITION 8DIP UCC38051DRG4-ND - IC PFC CTRLR TRANSITION 8SOIC UCC38051DR-ND - IC PFC CTRLR TRANSITION 8SOIC UCC38051DG4-ND - IC PFC CTRLR TRANSITION 8SOIC UCC38050PE4-ND - IC PFC CTRLR TRANSITION 8DIP UCC38050DRG4-ND - IC PFC CTRLR TRANSITION 8SOIC UCC38050DR-ND - IC PFC CTRLR TRANSITION 8SOIC UCC38050DG4-ND - IC PFC CTRLR TRANSITION 8SOIC UCC28051PE4-ND - IC PFC CTRLR TRANSITION 8DIP UCC28051DRG4-ND - IC PFC CTRLR TRANSITION 8SOIC 更多... |
| 其它名称： | 296-19036 |
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UCC28050, UCC28051
UCC38050, UCC38051
SLUS515F?SEPTEMBER 2002 ? REVISED MARCH 2009
APPLICATION INFORMATION
For low to medium power applications up to approximately 300 W, the CRM boost has an advantage in losses.
The filtering requirement is not severe and therefore is not a disadvantage. For medium to higher power
applications, where the input filter requirements dominate the size of the magnetics, the CCM boost is a better
choice due to lower peak currents (which reduces conduction losses) and lower ripple current (which reduces
filter requirements). The main tradeoff in using CRM boost is lower losses due to no reverse recovery in the
boost diode vs. higher ripple and peak currents.
Design Procedure
For a selected V OUT and minimum switching frequency, the following equations outline the design guidelines
for power stage component selection. Refer to the typical application diagram for reference designators.
Inductor Selection
In the transition mode control, the inductor value needs to be calculated to start the next switching cycle at zero
current. The time it takes to reach zero depends on line voltage and inductance and as shown in equation (1),
L determines the converter ’s frequency range.
L +
V AC(min)
2
2
V OUT * 2
F s(min) V OUT
V AC(min)
P IN
(1)
where
D V AC = RMS line voltage
D V AC(min) = minimum AC line voltage
D P IN = maximum input power averaged over the ac line period
I L(peak) + 2
2
P IN
V AC(min)
(2)
I L(rms) +
I L(peak)
6
(3)
MOSFET Selection
The main switch selection is driven by the amount of power dissipation allowable. It is important to choose a
device that minimizes gate charge and capacitance and minimizes the sum of switching and conduction losses
at a given frequency.
1 * 4
I Q(rms_crm) +
6
2
V AC(min)
9 p V OUT
IL PEAK(crm)
(4)
12
V Q(max) + V OUT
www.ti.com
(5)
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相关代理商/技术参数 |
参数描述 |
|---|---|
| UCC28051P | 功能描述:功率因数校正 IC for low-med pwr app w/IEC1000-3-2 cmplnc 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 |
| UCC28051PE4 | 功能描述:功率因数校正 IC for low-med pwr app w/IEC1000-3-2 cmplnc 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 |
| UCC2805D | 功能描述:电流型 PWM 控制器 Low-Power BiCMOS Current-Mode PWM RoHS:否 制造商:Texas Instruments 开关频率:27 KHz 上升时间: 下降时间: 工作电源电压:6 V to 15 V 工作电源电流:1.5 mA 输出端数量:1 最大工作温度:+ 105 C 安装风格:SMD/SMT 封装 / 箱体:TSSOP-14 |
| UCC2805D | 制造商:Texas Instruments 功能描述:IC CURRENT MODE PWM 10V 8-SOIC 制造商:Texas Instruments 功能描述:IC, CURRENT MODE PWM, 10V, 8-SOIC |
| UCC2805DG4 | 功能描述:电流型 PWM 控制器 Low-Power BiCMOS Current-Mode PWM RoHS:否 制造商:Texas Instruments 开关频率:27 KHz 上升时间: 下降时间: 工作电源电压:6 V to 15 V 工作电源电流:1.5 mA 输出端数量:1 最大工作温度:+ 105 C 安装风格:SMD/SMT 封装 / 箱体:TSSOP-14 |
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