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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)： | 10/14頁 |
| 文件大小： | 373K |
| 代理商： | D381A |
D381A Design Ideas
I. Driving Multi-segment Lamps
The D381A may be used to drive multiple EL lamp segments. An external transistor switching circuit is used to turn
each lamp segment on or off independently or simultaneously. A high signal at the corresponding E input will enable
the corresponding lamp segment. In this configuration, EL Lamp 1 is always turned on when the IC is enabled.
Otherwise, always make sure that at least one segment is selected when the D381A is enabled.
10
II. Two-Level Dimming
Two level dimming may be achieved with the circuit below. When DIM is low, the external PNP transistor is saturated
and the EL lamp runs at full brightness. When DIM is high, the external PNP turns off and the 47
resistor reduces the
voltage at (V+) and dims the EL lamp.
OFF
ON
V
bat
R
switch
1k
DIM
2N3906
1
2
3
4
5
6
7
8
9
10
CHF
CLF
E
N/C
GND
N/C
L-
Vout
L+
V+
EL
Lamp
CLF
L
CHF
D381A
V
ENA
1.0 uF
R
enable
BRIGHT
DIM
3V
0V
1
2
3
4
5
6
7
8
9
10
CHF
CLF
E1
N/C
GND
N/C
L-
Vout
L+
V+
D381A
Vbat
0.1 uF
OFF
ON
EL Lamp 2
EL Lamp 3
E2
2.2K
4.7K
BAS21LT1
BAS21LT1
MMBT5401LT1
MMBT5551LT1
1K
E3
2.2K
4.7K
BAS21LT1
BAS21LT1
MMBT5401LT1
MMBT5551LT1
1K
EL Lamp 1
100 nF
100 nF
OFF
ON
OFF
ON
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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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