参数资料
| 型号： | RDK-236 |
| 厂商： | Power Integrations |
| 文件页数： | 18/30页 |
| 文件大小： | 0K |
| 描述： | KIT REF DESIGN PFS714EG |
| 标准包装： | 1 |
| 系列： | HiperPFS™ |
| 主要目的： | 电源管理，功率因数校正 |
| 嵌入式： | 否 |
| 已用 IC / 零件： | PFS714EG |
| 主要属性： | 347W，370 ~ 390V 输出，90 ~ 264VAC 输入 |
| 已供物品： | 板 |
| 其它名称： | 596-1418 |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页当前第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页
PFS704-729EG
Quick Design Checklist
As with any power supply design, all HiperPFS designs should
be verified on the bench to make sure that component
specifications are not exceeded under worst-case conditions.
The following minimum set of tests is strongly recommended:
1. Maximum drain voltage – verify that peak V DS does not
exceed 530 V at lowest input voltage and maximum overload
output power. Maximum overload output power occurs
when the output is overloaded to a level just above the
highest rated load or before the power supply output voltage
starts falling out of regulation. Additional external snubbers
should be used if this voltage is exceeded. In most designs,
addition of a ceramic capacitor in the range of 33 pF and
100 pF connected across the PFC output diode will reduce
the maximum drain-source voltage to a level below the BV DSS
rating. When measuring drain-source voltage of the MOSFET,
a high voltage probe should be used. When the probe tip is
removed, a silver ring in the vicinity of the probe tip can be
seen. This ring is at ground potential and the best ground
connection point for making noise free measurements.
Wrapping stiff wire around the ground ring and then
connecting that ground wire into the circuit with the shortest
possible wire length, and connecting the probe tip to the
point being measured, ensures error free measurement.
2. Maximum drain current – at maximum ambient temperature,
minimum input voltage and maximum output load, verify
drain current waveforms at start-up for any signs of inductor
saturation and excessive leading edge current spikes.
18
Rev. F 12/12
HiperPFS has a leading edge blanking time of 220 ns to
prevent premature termination of the ON-cycle. Verify that
the leading edge current spike is below the allowed current
limit for the drain current waveform at the end of the 220 ns
blanking period. If a wire loop is inserted in series with the
drain, it forms a small stray inductance in series with the
drain. This stray inductance will add to the leading edge
voltage spike on the drain source waveform. The drain-
source voltage waveform should therefore never be measured
with this loop. An alternate measurement that can provide
drain current level and information regarding slope of the
inductor current can be obtained by monitoring the inductor
current instead. A wire loop can be added in series with the
PFC inductor connection that connects the inductor to the
input rectifier for the purpose of measurement.
3. Thermal check – at maximum output power, minimum input
voltage and maximum ambient temperature; verify that
temperature specifications are not exceeded for the HiperPFS,
PFC inductor, output diodes and output capacitors. Enough
thermal margin should be allowed for the part-to-part
variation of the R DS(ON) of HiperPFS, as specified in the data
sheet. A maximum package temperature of 100 °C is
recommended to allow for these variations.
4. Input PF should improve with load, if performance is found to
progressively deteriorate with loading then that is a sign of
possible noise pickup by the VOLTAGE MONITOR pin circuit
or the feedback divider network and the compensation circuit.
www.powerint.com
相关PDF资料 |
PDF描述 |
|---|---|
| RECE-20279-001E-01 | RCPT IPEX MHF |
| RF2594-000 | BD540-30 |
| RF2873-000 | POLYSWITCH 1.25A RESET FUSE RAD |
| RGEF1000-1 | POLYSWITCH PTC RESET 10A HOLD |
| RGEF1000-2 | POLYSWITCH PTC RESET 10A HLD T/R |
相关代理商/技术参数 |
参数描述 |
|---|---|
| RDK-239 | 功能描述:LED 照明开发工具 HV 150W RESONANT CONVERTER KIT RoHS:否 制造商:Fairchild Semiconductor 产品:Evaluation Kits 用于:FL7732 核心: 电源电压:120V 系列: 封装: |
| RDK-242 | 功能描述:电源管理IC开发工具 TOPSwitch-JX REF. DESIGN KIT RoHS:否 制造商:Maxim Integrated 产品:Evaluation Kits 类型:Battery Management 工具用于评估:MAX17710GB 输入电压: 输出电压:1.8 V |
| RDK-248 | 功能描述:LED 照明开发工具 UNIVERSAL PFC 180W HiperPFS KIT RoHS:否 制造商:Fairchild Semiconductor 产品:Evaluation Kits 用于:FL7732 核心: 电源电压:120V 系列: 封装: |
| RDK-249 | 功能描述:线性和开关式电源 HiperTFS Ref Des Kit 14.W Stby, 300W PS RoHS:否 制造商:TDK-Lambda 产品:Switching Supplies 开放式框架/封闭式:Enclosed 输出功率额定值:800 W 输入电压:85 VAC to 265 VAC 输出端数量:1 输出电压（通道 1）:20 V 输出电流（通道 1）:40 A 商用/医用: 输出电压（通道 2）: 输出电流（通道 2）: 安装风格:Rack 长度: 宽度: 高度: |
| RDK-251 | 功能描述:LED 照明开发工具 LinkSwitch-PL Ref Des Kit, 5W Dim RoHS:否 制造商:Fairchild Semiconductor 产品:Evaluation Kits 用于:FL7732 核心: 电源电压:120V 系列: 封装: |
发布紧急采购，3分钟左右您将得到回复。