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參數(shù)資料
| 型號(hào)： | L6995STR |
| 廠商： | STMICROELECTRONICS |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | SWITCHING CONTROLLER, PDSO20 |
| 封裝： | MO-153-AC, TSSOP-20 |
| 文件頁數(shù)： | 5/26頁 |
| 文件大?。?/td> | 427K |
| 代理商： | L6995STR |
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L6995S
5.3 NOTE
There is a linear regulator on board, it allows to use one generator (only for the power section, in fact the IC
section is powered by the linear regulator); if the regulator is used close the J1, other wise it has to keep open.
Be careful measuring the efficiency with the linear regulator asserted.
At high current in the integrator configuration (around 20A), it can be seen an oscillation in the switching fre-
quency due to the noise interaction, to reduce this oscillation put a noise filter RN, CN like in the figure 9. Note
the RN resistor is in the place of the INT jumper near C4. RN, CN, should be selected with a pole frequency
around 1Mhz, but anyway higher than switching frequency (five times).
5.4 DEMOBOARD LAYOUT
Real dimensions: 5,7 cm X 7,7 cm (2,28inch X 3, 08inch)
Figure 11. PCB layout: bottom side
Figure 12. PCB Layout: Top side
Figure 13. Internal ground plane
Figure 14. Power & signal plane
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| L6996 | 功能描述:DC/DC 開關(guān)控制器 Step-Down Contrllr 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 |
| L6996-1 | 制造商:Johanson 功能描述:TUNING ROTOR |
| L6996-13 | 制造商:Johanson Manufacturing 功能描述:TUNING ELEMENT |
| L6996-16 | 制造商:Johanson Manufacturing 功能描述:TUNING ELEMENT |
| L6996-17 | 制造商:Johanson Manufacturing 功能描述:TUNING ELEMENT |
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