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參數資料
| 型號： | ELM337P |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | LIGHT SWITCH |
| 中文描述： | 燈開關 |
| 文件頁數： | 1/4頁 |
| 文件大小： | 27K |
| 代理商： | ELM337P |
ELM337
< http://www.elmelectronics.com/ >Connection Diagram
PDIP and SOIC
(top view)
V
DD
V
SS
1
2
3
4
8
7
6
5
Light Switch
The ELM337 provides a convenient means to
interface standard photocells or light dependent
resistors (LDRs) to digital logic circuits. It provides
an input comparator with hysteresis, line frequency
filtering, digital delays, and high current output
drivers all within the one 8 pin package.
Three mode setting pins configure the ELM337
for pulse or continuous output and for a delay on
change of from 1 msec to 10 minutes. The transition
threshold is set with a single external resistor,
simplifying designs and minimizing costs.
Applications need not be limited to those
employing photocells, as the Example Applications
section shows. The Schmitt trigger input provides a
convenient way to interface to virtually any input
signal, whether from digital logic or from a slowly
varying analog source. The remainder of the
ELM337 can simply be thought of as a time delay on
pickup and dropout type circuit - very useful for
sequencing processes.
Low power CMOS design - typically 1mA at 5V
Operates from 3V to 5.5V
No external timing elements required
Low parts count
Digitally selected delays of up to 10 minutes
Pulsed or continuous outputs
Internal line frequency filtering
High current drive outputs - up to 25 mA
Automatic lighting controls
Security light beam monitoring
Position sensing
Light controlled counters
Time delay circuits
LDR
Dark
Light
M2
Description
Applications
Block Diagram
1 of 4
Features
ELM337DSA
M0
M1
LDR
5
7
6
Programmable
Timer
Output
Logic
Light
Dark
4
M0
3
M1
2
M2
Line
Frequency
Detector
相關PDF資料 |
PDF描述 |
|---|---|
| ELM337SM | LIGHT SWITCH |
| ELM381 | 60 Hz Long Interval Counter |
| ELM413 | LED controller and a circuit startup timer in an 8 pin package |
| ELM446 | 50 HZ GENERATOR |
| ELM446P | 50 HZ GENERATOR |
相關代理商/技術參數 |
參數描述 |
|---|---|
| ELM337SM | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:LIGHT SWITCH |
| ELM339 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:INFRARED REMOTE CONTROL |
| ELM33905YDL | 功能描述:LED 電路板指示器 Vert LED Assembly 5mm Yellow 585 nm RoHS:否 制造商:Lumex LED 大小:3 mm 照明顏色:Green 波長:565 nm 光強度:30 mcd 安裝類型:SMD/SMT 顯示角:60 deg 封裝:Reel |
| ELM33MM5GD | 功能描述:LED 電路板指示器 Vert LED Assembly 5mm Green 565 nm RoHS:否 制造商:Lumex LED 大小:3 mm 照明顏色:Green 波長:565 nm 光強度:30 mcd 安裝類型:SMD/SMT 顯示角:60 deg 封裝:Reel |
| ELM33MM5SRD | 功能描述:LED 電路板指示器 Vert LED Assembly 5mm Super Red 660 nm RoHS:否 制造商:Lumex LED 大小:3 mm 照明顏色:Green 波長:565 nm 光強度:30 mcd 安裝類型:SMD/SMT 顯示角:60 deg 封裝:Reel |
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