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參數(shù)資料
| 型號(hào)： | PT5541 |
| 英文描述： | A 25V Single N-Channel HEXFET Power MOSFET in a DirectFET SQ package rated at 59 amperes optimized with low on resistance for applications such as active OR'ing. Shipped in Tape and Reel only. Part is not available in bulk, TR is implied in part number.; A IRF6622 with Standard Tape and Reel Quantity of 4800 |
| 中文描述： | 12V的1A條。 5 - V輸入步升（升壓）ISR的 |
| 文件頁(yè)數(shù)： | 4/7頁(yè) |
| 文件大?。?/td> | 174K |
| 代理商： | PT5541 |
For technical support and more information, see inside back cover or visit www.ti.com
Application Notes
Table 1: Input/Output Capacitors
(1) N/R –Not recommended. The surge and normal voltage rating does not meet the minimum operating limits.
Capacitor Recommendations for
the
PT5540 Boost Regulator Regulator Series
Input Capacitors:
The minimum input capacitance required is 100μF, with
a 200-mA(rms) ripple current rating and 150m
typical
equivalent series resistance (ESR). Electrolytic capacitors
have marginal ripple performance at frequencies greater
than 400kHz but have excellent low-frequency transient
response. Above the ripple frequency, ceramic capacitors
are necessary to improve the transient response and reduce
any high frequency noise components apparent during
higher current excursions. Preferred ESR type capacitor
part numbers are identified in Table 2-1.
Output Capacitor:
The recommended output capacitance is determined by
0.5-A(rms) ripple current rating and 100μF minimum
capacitance. The maximum output capacitance is 560μF.
Ripple current and >50m
ESR value are the major
considerations, along with temperature, when designing
with different types of capacitors. Tantalum capacitors
have a recommended minimum voltage rating of 2
×
(the
maximum DC voltage + AC ripple). This is necessary to
insure reliability for input voltage bus applications.
PT5540 Series
Tantalum Capacitors (Optional Input Capacitors)
Tantalum type capacitors can be used for the input bus
but only the AVX TPS, Sprague 593D/594/595, or Kemet
T495/T510 series. These capacitors are recommended
over many other tantalum types due to their higher rated
surge, power dissipation, and ripple current capability.
As a caution the TAJ series by AVX is not recommended.
This series has considerably higher ESR, reduced power
dissipation, and lower ripple current capability. The TAJ
series is less reliable than the AVX TPS series when deter-
mining power dissipation capability. Tantalum or Oscon
types are recommended for applications where ambient
temperatures fall below 0°C. Do not use tantalum capaci-
tors on the output bus.
Capacitor Table
Table 1 identifies the characteristics of capacitors from a
number of vendors with acceptable ESR and ripple current
ratings. The number of capacitors required at both the
input and output buses is identified for each capacitor type.
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
(Equivalent Series Resistance at 100kHz) are critical parameters
necessary to insure both optimum regulator performance and
long capacitor life.
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相關(guān)PDF資料 |
PDF描述 |
|---|---|
| PT5542 | A 25V Single N-Channel HEXFET Power MOSFET in a DirectFET SQ package rated at 59 amperes optimized with low on resistance for applications such as active OR'ing. Shipped in Tape and Reel only. Part is not available in bulk, TR is implied in part number.; Similar to IRF6622 qualified for use with lead free solder shipped in tape and reel 4800 pieces |
| PT5544 | 8V 1.75A. 5-V Input Step-Up (Boost) ISR |
| PT5545 | 30V Single N-Channel HEXFET Power MOSFET in a I-Pak package; A IRLU2703 with Standard Packaging |
| PT5546 | 10V 1.3A. 5-V Input Step-Up (Boost) ISR |
| PT5548 | 200V Single N-Channel HEXFET Power MOSFET in a D2-Pak package; Similar to IRFS17N20D with Lead Free Packaging |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| PT5541A | 功能描述:DC/DC轉(zhuǎn)換器 12V 1A 5-V Input Step-Up (Boost) ISR RoHS:否 制造商:Murata 產(chǎn)品: 輸出功率: 輸入電壓范圍:3.6 V to 5.5 V 輸入電壓（標(biāo)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(fēng)格:SMD/SMT 封裝 / 箱體尺寸: |
| PT5541C | 功能描述:DC/DC轉(zhuǎn)換器 12V 1A 5-V Input Step-Up (Boost) ISR RoHS:否 制造商:Murata 產(chǎn)品: 輸出功率: 輸入電壓范圍:3.6 V to 5.5 V 輸入電壓（標(biāo)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(fēng)格:SMD/SMT 封裝 / 箱體尺寸: |
| PT5541N | 功能描述:開關(guān)變換器、穩(wěn)壓器與控制器 12V 1A 5-V Input Step-Up (Boost) ISR RoHS:否 制造商:Texas Instruments 輸出電壓:1.2 V to 10 V 輸出電流:300 mA 輸出功率: 輸入電壓:3 V to 17 V 開關(guān)頻率:1 MHz 工作溫度范圍: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel |
| PT5542 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:15V 0.75A. 5-V Input Step-Up (Boost) ISR |
| PT5542A | 功能描述:REG 15V .75A 4.5/9VIN HORZ RoHS:否 類別:電源 - 板載 >> DC DC Converters 系列:PT5540 設(shè)計(jì)資源:VI-200, VI-J00 Design Guide, Appl Manual 標(biāo)準(zhǔn)包裝:1 系列:* 類型:隔離 輸出數(shù):1 電壓 - 輸入（最?。?55V 電壓 - 輸入（最大）:100V Voltage - Output 1:15V Voltage - Output 2:- Voltage - Output 3:- 電流 - 輸出（最大）:* 電源（瓦） - 制造商系列:200W 電壓 - 隔離:* 特點(diǎn):* 安裝類型:通孔 封裝/外殼:9-FinMod 尺寸/尺寸:4.60" L x 1.86" W x 0.79" H（116.8mm x 47.2mm x 20.1mm） 包裝:散裝 工作溫度:-55°C ~ 85°C 效率:* 電源（瓦特）- 最大:* |
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