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參數(shù)資料
| 型號： | PTH05000W |
| 英文描述： | Fully-integrated linear lighting ballast, IR21571, European version, 230VAC line, 36W/T8 lamp |
| 中文描述： | 6答：5 - V輸入寬輸出調節(jié)插入電源模塊 |
| 文件頁數(shù)： | 6/11頁 |
| 文件大?。?/td> | 286K |
| 代理商： | PTH05000W |
For technical support and more information, see inside back cover or visit www.ti.com
Application Notes
PTH05000 Series
Capacitor Recommendations for the PTH05000
Series of 6-A Power Modules
Input Capacitors
The recommended input capacitance is determined by
300 mA (rms) minimum ripple current rating, less than
300 m
equivalent series resistance (ESR) and 330 μF
minimum capacitance. The ripple current rating, ESR,
and operating temperature are the major considerations
when selecting the input capacitor.
It is recommended that tantalum capacitors have a mini-
mum voltage rating of at least twice the working voltage,
including the ac ripple. This is necessary to insure reli-
ability with 5-V input voltage bus applications.
Output Capacitors (optional)
The ESR of the output bulk (non-ceramic) capacitance
must be between 10 m
≤
ESR
≤
200 m
. Electrolytic
capacitors have poor ripple performance at frequen-
cies greater than 400 kHz but excellent low frequency
transient response. Above the ripple frequency, ceramic
decoupling capacitors are recommended to improve the
transient response and reduce any high frequency noise
components apparent during higher current excursions. A
maximum of 100 μF ceramic capacitance may be added to
the output bus.
Tantalum/ Ceramic Capacitors
Tantalum capacitors are acceptable on the output bus.
Either tantalum, Os-con, or ceramic capacitor types
are recommended for applications where ambient tem-
peratures fall below 0 °C. Ceramic capacitors may be
used instead of electrolytic types on both the input and
output bus. The input bus must have at least the minimum
amount of capacitance. For the output bus, the total
amount of ceramic capacitance should be limited to 100 μF.
Capacitor Table
Table 1-1 identifies capacitors with acceptable ESR and
maximum allowable ripple current (rms) ratings. Capaci-
tors recommended for the output are identified under
the Output Bus column with the required quantity.
This is not an extensive capacitor list. Capacitors from other
vendors are available with comparable specifications. Those
listed are for guidance. The RMS ripple current rating and
ESR (at 100 kHz) are critical parameters necessary to insure
both optimum regulator performance and long capacitor life.
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Table 1-1; Recommended Input/Output Capacitors
相關PDF資料 |
PDF描述 |
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相關代理商/技術參數(shù) |
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| PTH05000WAD | 功能描述:DC/DC轉換器 6A 5VInput Wide-Out Adj Plug-in Pwr Mod RoHS:否 制造商:Murata 產品: 輸出功率: 輸入電壓范圍:3.6 V to 5.5 V 輸入電壓（標稱）: 輸出端數(shù)量:1 輸出電壓（通道 1）:3.3 V 輸出電流（通道 1）:600 mA 輸出電壓（通道 2）: 輸出電流（通道 2）: 安裝風格:SMD/SMT 封裝 / 箱體尺寸: |
| PTH05000WAH | 功能描述:DC/DC轉換器 6A 5VInput Wide-Out Adj Plug-in Pwr Mod RoHS:否 制造商:Murata 產品: 輸出功率: 輸入電壓范圍:3.6 V to 5.5 V 輸入電壓（標稱）: 輸出端數(shù)量:1 輸出電壓（通道 1）:3.3 V 輸出電流（通道 1）:600 mA 輸出電壓（通道 2）: 輸出電流（通道 2）: 安裝風格:SMD/SMT 封裝 / 箱體尺寸: |
| PTH05000WAH | 制造商:POWER TRENDS 功能描述:IC DC/DC 5VIN 6A ADJ O/P 5000 |
| PTH05000WAH | 制造商:Texas Instruments 功能描述:Supply Voltage Max.:5.5V |
| PTH05000WAS | 功能描述:DC/DC轉換器 6A 5VInput Wide-Out Adj Plug-in Pwr Mod RoHS:否 制造商:Murata 產品: 輸出功率: 輸入電壓范圍:3.6 V to 5.5 V 輸入電壓（標稱）: 輸出端數(shù)量:1 輸出電壓（通道 1）:3.3 V 輸出電流（通道 1）:600 mA 輸出電壓（通道 2）: 輸出電流（通道 2）: 安裝風格:SMD/SMT 封裝 / 箱體尺寸: |
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