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參數(shù)資料
| 型號： | D371A |
| 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(dòng)IC |
| 文件頁數(shù)： | 7/14頁 |
| 文件大小： | 366K |
| 代理商： | D371A |
7
Selecting the appropriate value of capacitor for the high frequency oscillator (CHF) will set the inductor switching
frequency of the D371 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.
II. High Frequency Capacitor (CHF) Selection
Figure 3: Typical Inductor Frequency 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+.
10
15
20
25
50
75
100 125 150 175 200 225
CHF (pF)
I
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| D371 | Digital Uncooled DFB（distributed-feedback） Laser Module(數(shù)字常溫DFB（分布式反饋）激光模塊) |
| D372-21GS | D372-Type Digital Uncooled DFB Laser Module for 2.5 Gbits/s Applications |
| D372-21SS | D372-Type Digital Uncooled DFB Laser Module for 2.5 Gbits/s Applications |
| D372A | EL Drivers(EL驅(qū)動(dòng)器) |
| D372A | Electroluminescent Lamp Driver IC |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| D-371F | 制造商:Triad Magnetics 功能描述: |
| D371S45T | 功能描述:二極管 - 通用，功率，開關(guān) 4.5KV 410A RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Switching Diodes 峰值反向電壓:600 V 正向連續(xù)電流:200 A 最大浪涌電流:800 A 配置: 恢復(fù)時(shí)間:2000 ns 正向電壓下降:1.25 V 最大反向漏泄電流:300 uA 最大功率耗散: 工作溫度范圍: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:ISOTOP 封裝:Tube |
| D372 | 制造商:AGERE 制造商全稱:AGERE 功能描述:D372-Type Digital Uncooled DFB Laser Module for 2.5 Gbits/s Applications |
| D3720A-01 | 制造商:American Technical Ceramics Corp 功能描述:SINGLE CHANNEL DIGITAL PANEL METER 制造商:ATC 功能描述:SINGLE CHANNEL DIGITAL PANEL METER |
| D372-20AS | 制造商:AGERE 制造商全稱:AGERE 功能描述:D372-Type Digital Uncooled DFB Laser Module for 2.5 Gbits/s Applications |
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