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參數(shù)資料
| 型號(hào)： | 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(dòng)IC |
| 文件頁數(shù)： | 11/14頁 |
| 文件大?。?/td> | 373K |
| 代理商： | D381A |
III. Lamp Frequency Control with an External Clock Signal
An external clock signal may be used to control the EL lamp frequency (LF) of the D381A instead of using a capacitor.
There is an internal frequency divider in the IC 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 voltage
should not exceed V+. A typical duty cycle for the clock input is +50%.
IV. EL Brightness through HF Clock Pulse Width Modulation
The inductor oscillating frequency may also be controlled on the D381A EL driver IC using an external clock input to
CHF. In addition, pulse-width modulation of the external HF clock signal to the D381A may be used to regulate the
brightness of the EL lamp load. High frequency input is typically in the range of 10kHz to 40kHz, with duty cycle in the
range of 15% to 100%. In general, a lower HF frequency results in higher brightness and using a lower duty cycle
results in higher brightness. The clock signal voltage should not exceed V+. Prior to finalization of the circuit, contact
Durel to verify that the frequency, duty cycle, and setup chosen are acceptable for EL driver performance.
11
1
2
3
4
5
6
7
8
9
10
CHF
CLF
E
N/C
GND
N/C
L-
Vout
L+
V+
D381A
Vbat
0.1 u F
OFF
ON
EL Lamp
1.0V Min
0.2V Max
10KHz - 40KHz
15%-75% Duty
1
2
3
4
5
6
7
8
9
10
CHF
CLF
E
N/C
GND
N/C
L-
Vout
L+
V+
D381A
Vbat
0.1 uF
OFF
ON
EL Lamp
1.0V Min
0.2V Max
200Hz - 2KHz
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 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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