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| 型號： | TPS5211PWP |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | HIGH FREQUENCY PROGRAMMABLE HYSTERETIC REGULATOR CONTROLLER |
| 中文描述： | 可編程滯高頻穩(wěn)壓控制器 |
| 文件頁數(shù)： | 29/32頁 |
| 文件大?。?/td> | 469K |
| 代理商： | TPS5211PWP |
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TPS5211
HIGH FREQUENCY PROGRAMMABLE HYSTERETIC
REGULATOR CONTROLLER
SLVS243 – SEPTEMBER 1999
29
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
APPLICATION INFORMATION
Comparison of TPS5210 and TPS5211 controller applications
The TPS5210 and TPS5211 hysteretic controllers have excellent load current transient response
characteristics, which is one of the most important advantages of hysteretic mode. There are specific
application areas where one of the hysteretic controllers is preferable over the other. The table below gives a
comparative view on application areas for the TPS5210 and TPS5211 controllers
comparison of TPS5210 and TPS5211 applications
Controller
TPS5210
TPS5211
Switching frequency, kHz
100 – 400
400 – 700
Frequency variation
Depends on outout filter characteristics
Independent of output filter and easy to
evaluate
Output current, A
up to 40
up to 18 – 20 (can be increased in multi-
phase configuration)
Efficiency, % (depends on frequency, output cur-
rent, Vin, Vout, components, etc.)
85 – 95
75 – 85
Input and output filter
Requires bulk electrolytic capacitors espe-
cially if Iout > 12A and larger inductor
Surface
-
mount ceramic and POSCAP
type capacitors and 40% – 65% smaller
inductors.
Component Cost
20% – 40% lower for TPS5211
System cost including reliability, power losses,
cooling, etc.
Can be estimated only during design for a given specific application.
Layout and design
Special attention to the noise sensitive
places such as the hysteresis comparator
and the sample hold circuitry.
Special attention not to exceed frequency
and lcc limits. The high frequency dc –
dc converter design rules should be
used.
Compatibility with the whole system
For high current applications, it is difficult to
meet high density minimum size require-
ments.
A dc – dc converter can be placed close
to the microprocessor or DSP to de-
crease the number of decoupling capaci-
tors.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TPS5211PWPR | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Analog IC |
| TPS524 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:PHOTOVOLTAIC CELL FOR THERMOPILE DETECTION |
| TPS5300 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:MOBILE CPU POWER SUPPLY CONTROLLER |
| TPS5300DAP | 功能描述:DC/DC 開關(guān)控制器 Mobile CPU DC/DC Cntrlr RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK |
| TPS5300DAPG4 | 功能描述:DC/DC 開關(guān)控制器 Mobile CPU DC/DC Cntrlr RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK |
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