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參數(shù)資料
| 型號： | D381A |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | Electroluminescent Lamp Driver IC |
| 中文描述： | 電致發(fā)光燈驅(qū)動IC |
| 文件頁數(shù)： | 7/14頁 |
| 文件大?。?/td> | 373K |
| 代理商： | D381A |
7
II. High Frequency Capacitor (CHF) Selection
Selecting the appropriate value of capacitor for the high frequency oscillator (CHF) will set the inductor switching
frequency of the D381A IC. High inductor frequency allows for more efficient use of inductor coils with lower values.
However, care must be taken that the charge pumping does not reach a continuous mode at very high frequency when
the voltage is not efficiently transferred to the lamp load. Figure 3 graphically represents the effect of the CHF value
on the oscillator frequency at V+=3.0V.
Figure 3: Typical InductorFrequency vs. CHF Capacitor
The inductor switching frequency may also be controlled with an external clock signal. The inductor will charge during
the low portion of the clock signal and discharge into the EL lamp during the high portion of the clock signal. The
positive duty cycle used for the external high frequency clock signal is usually between 15%-75%, with a typical value
of 15%-20% for maximum brightness. The clock signal input voltage should not exceed V+.
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相關(guān)代理商/技術(shù)參數(shù) |
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|---|---|
| D381BB-CSP | 制造商:Rogers Corporation 功能描述:D381B ELECTROLUMINESCENT LAMP DRIVER IC |
| D381N10K | 功能描述:電位計(jì) 10 K Ohms 10% 1W Solder Lug RoHS:否 制造商:Bourns 產(chǎn)品:Musical Syst Potentiometer 安裝風(fēng)格:Panel 錐度:Audio, Linear 轉(zhuǎn)數(shù): 電阻:500 kOhms 元件類型:Carbon 軸類型:Round / Plain 端接類型:Solder Lug 電壓額定值:200 V 功率額定值:0.2 W 容差:20 % |
| D381N5K | 功能描述:電位計(jì) 5 K Ohms 10% 1W Solder Lug RoHS:否 制造商:Bourns 產(chǎn)品:Musical Syst Potentiometer 安裝風(fēng)格:Panel 錐度:Audio, Linear 轉(zhuǎn)數(shù): 電阻:500 kOhms 元件類型:Carbon 軸類型:Round / Plain 端接類型:Solder Lug 電壓額定值:200 V 功率額定值:0.2 W 容差:20 % |
| D381V3JD | 制造商:The Cherry Corporation 功能描述:Switch, Miniature, Snap Action |
| D3820-25 | 制造商:American Technical Ceramics Corp 功能描述:DIGITAL PROCESS METER 0-10VDC INPUT 制造商:ATC 功能描述:DIGITAL PROCESS METER 0-10VDC INPUT |
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