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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IC |
| 文件頁數(shù)： | 6/14頁 |
| 文件大?。?/td> | 366K |
| 代理商： | D371A |
6
Designing With D371A
I. Lamp Frequency Capacitor (CLF) Selection
Selecting the appropriate value of lamp frequency capacitor (CLF) for the low frequency oscillator will specify the
output frequency of the D371 EL driver. Lamp frequencies of 200-500Hz are typically used. Figure 1 graphically
represents the inversely proportional relationship between the CLF capacitor value and the oscillator frequency. In
this example at V+=3.0V, LF = 1150 nF-Hz/CLF.
Alternatively, the lamp frequency may also be controlled with an external clock signal with a typical duty cycle of 75%.
There is an internal frequency divider in the device so that the output lamp frequency will be half of the input clock
signal. For example, if a 500Hz input clock signal is used, the resulting lamp frequency will be 250Hz. The clock signal
input voltage should not exceed V+.
The selection of the CLF value can also affect the brightness of the EL lamp because of its control of the lamp frequency
(LF). Although input voltage and lamp size can change EL lamp frequency as well, LF mainly depends on the CLF
value selected or the frequency of the input clock signal to CLF. Figure 2 shows typical brightness of a D371 circuit with
respect to lamp frequency. In this example, the inductor and CHF values were kept constant while varying LF.
Figure 1: Typical Lamp Frequency vs. CLF Capacitor
Figure 2: Typical Lamp Luminance vs. Lamp Frequency
(V+ = 3.0V, 2.4 in
2
Durel 3 Green EL Lamp Load)
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600
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Lamp Frequency (Hz)
L
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Lamp Frequency (Hz)
L
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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