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參數(shù)資料
| 型號(hào)： | PT7715 |
| 英文描述： | Single High Side Driver, Noninverting Input. IN Voltage Threshold 9.5V & 6.0V; A IRS2118 packaged in a Lead-Free 8-Lead SOIC |
| 中文描述： | 20阿1.075V至1.85V 5V的輸入可編程ISR的 |
| 文件頁(yè)數(shù)： | 4/8頁(yè) |
| 文件大?。?/td> | 157K |
| 代理商： | PT7715 |
Application Notes
For technical support and more information, see inside back cover or visit www.ti.com
PT7710 Family, PT7744/PT7745
Capacitor Recommendations for
the PT7710
Series of Regulators and Current Boosters
Input Capacitors
The recommended input capacitance is determined by the
1.4 ampere minimum ripple current rating and 1500μF
minimum capacitance. Capacitors listed below must be
rated for a minimum of twice (2
×
) the input voltage with
+5V operation. Ripple current and
≤
100m
Equivalent
Series Resistance (ESR) values are the major consider-
ations along with temperature when selecting the proper
capacitor.
Output Capacitors
The minimum required output capacitance is 330μF with
a maximum ESR less than or equal to 100m
. Failure to
observe this requirement may lead to regulator instability or
oscillation. Electrolytic capacitors have poor ripple perfor-
mance at frequencies greater than 400kHz, but excellent low
frequency transient response. Above the ripple frequency
ceramic decoupling capacitors are necessary to improve the
transient response and reduce any microprocessor high
frequency noise components apparent during higher current
excursions. Preferred low ESR type capacitor part numbers
are identified in the Table 1-1 below.
Note:
(N/R) is not recommended for this application, due to extremely low Equivalent Series Resistance (ESR)
Table 1-1 Capacitors Characteristic Data
Tantalum Characteristics
Tantalum capacitors with a minimum 10-V rating are
recommended on the output bus, but only the AVX TPS
Series, Sprague 594/595 Series, or Kemet T495/T510
Series. These AVX, Sprague, and Kemet capacitors are
specified over other types due to their higher surge cur-
rent, excellent power dissipation and ripple current ratings.
As a caution, the TAJ Series by AVX is not recommended.
This series exhibits considerably higher ESR, reduced power
dissipation and lower ripple current capability. The TAJ
series is also less reliable compared to the TPS series when
determining power dissipation capability.
Capacitor Table
Table 1-1 identifies the characteristics of capacitors from a
number of vendors with acceptable ESR and ripple current
(rms) ratings. The suggested minimum quantities per
regulator for both the input and output buses are identified.
This is not an extensive capacitor list. Capacitors from
other vendors are available with comparible specifications.
The RMS ripple current rating and ESR (Equivalent Series
Resistance at 100kHz) are the 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 |
|---|---|
| PT7716 | 20-A 1.075V to 1.85V 3.3V-Input Programmable ISR |
| PT7721A | SMPS Controller |
| PT7721C | Single High Side Driver, Noninverting Input. IN Voltage Threshold 9.5V & 6.0V; A IRS2117 packaged in a Lead-Free 8-Lead SOIC shipped on Tape and Reel |
| PT7721N | SMPS Controller |
| PT7722A | 25A 45V Hi-Rel Schottky Doubler Diode in a TO-254AA package |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| PT7715A | 功能描述:開關(guān)變換器、穩(wěn)壓器與控制器 20A 1.075V-1.85V 5 Vin Programmable 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 |
| PT7715C | 功能描述:開關(guān)變換器、穩(wěn)壓器與控制器 20A 1.075V-1.85V 5 Vin Programmable 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 |
| PT7715N | 功能描述:REG SW 5VIN 20A PROG LV VERT RoHS:是 類別:電源 - 板載 >> DC DC Converters 系列:PT7710 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:* |
| PT7716 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:20-A 1.075V to 1.85V 3.3V-Input Programmable ISR |
| PT7716A | 功能描述:REG 1.075-1.85 20A 3.3VIN HORZ RoHS:否 類別:電源 - 板載 >> DC DC Converters 系列:PT7710 設(shè)計(jì)資源:Maxi/Mini/Micro Design Guide, Appl Manual 標(biāo)準(zhǔn)包裝:1 系列:Maxi 類型:隔離 輸出數(shù):1 電壓 - 輸入（最?。?43V 電壓 - 輸入（最大）:110V Voltage - Output 1:15V Voltage - Output 2:- Voltage - Output 3:- 電流 - 輸出（最大）:* 電源（瓦） - 制造商系列:400W 電壓 - 隔離:* 特點(diǎn):* 安裝類型:通孔 封裝/外殼:模塊 尺寸/尺寸:4.60" L x 2.20" W x 0.54" H（116.8mm x 55.9mm x 13.7mm） 包裝:散裝 工作溫度:-55°C ~ 100°C 效率:* 電源（瓦特）- 最大:* |
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