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參數(shù)資料
| 型號： | TK11811D1 |
| 廠商： | TOKO Inc. |
| 元件分類： | DC/DC變換器 |
| 英文描述： | DC-DC CONVERTER |
| 中文描述： | DC - DC變換器 |
| 文件頁數(shù)： | 7/8頁 |
| 文件大?。?/td> | 60K |
| 代理商： | TK11811D1 |
January 1999 TOKO, Inc.
Page 7
TK11811
RC values depend upon the operating current, and should
be chosen experimentally using the given values of 3300
pF and 22 k
as a starting point.
INPUT/OUTPUT DECOUPLING CAPACITORS
DC-DC converters generate a large ripple current on both
the input and the output of the circuit. The capacitors used
should be as large as possible and have low impedance in
the 300 kHz range. Since low temperatures cause
capacitors to decrease capacitance and increase
Equivalent Series Resistance (ESR), care should be taken
to choose capacitors that have acceptable characteristics
over the temperature range you intend to use. This should
be done experimentally to verify results, as capacitor
performance varies widely from manufacturer to
manufacturer. Tantalum capacitors are generally the best
choice and 10
μ
F should be adequate for most applications.
LOAD CHARACTERISTICS
The TK11811 should not be allowed to start-up under full
load conditions. If this occurs, the output may not stabilize
to the correct output voltage. This can be compensated for,
somewhat, by adjusting the RC of the feedback loop or by
decreasing the output decoupling capacitor. Maximum
current can be drawn after the oscillator has started and
the output has reached nominal output voltage. This is
more critical with input voltages under 1.3 V as the converter
needs to generate sufficient output to ensure correct
internal bandgap and bias voltages.
ADDITIONAL INFORMATION (CONT.)
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| TK11811M | DC-DC CONVERTER |
| TK11811MTL | DC-DC CONVERTER |
| TK11812MD2 | Silver Mica Capacitor; Capacitance:2700pF; Capacitance Tolerance: 5%; Series:CM06; Voltage Rating:500VDC; Capacitor Dielectric Material:Mica; Termination:Radial Leaded; Lead Pitch:8.7mm; Leaded Process Compatible:No RoHS Compliant: No |
| TK11812 | DC-DC CONVERTER |
| TK11812M | DC-DC CONVERTER |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TK118A | 制造商:Thomas & Betts 功能描述:Fittings Coupler 3inch Steel |
| TK118A-RT | 制造商:Thomas & Betts 功能描述:3 IN RAINTIGHT COMPRESSION CPL |
| TK11950MTL | 制造商:TOKO 功能描述: |
| TK119A | 制造商:Thomas & Betts 功能描述:3 1/2" COUPLING,COMP.,EMT,STL 制造商:Thomas & Betts 功能描述:Fittings Coupler 3.5inch Steel |
| TK119A-RT | 制造商:Thomas & Betts 功能描述:3 1/2 IN RAINTIGHT COMPRESSION CPL |
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