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ELM413 PDF预览

ELM413

更新时间: 2024-11-04 21:55:23
品牌 Logo 应用领域
其他 - ETC 控制器
页数 文件大小 规格书
4页 29K
描述
LED controller and a circuit startup timer in an 8 pin package

ELM413 数据手册

 浏览型号ELM413的Datasheet PDF文件第2页浏览型号ELM413的Datasheet PDF文件第3页浏览型号ELM413的Datasheet PDF文件第4页 
ELM413  
LED Driver  
Description  
Features  
The ELM413 is both an LED controller and a  
• Low power CMOS design - typically 1mA at 5V  
• Operates over a supply range of 3.0 to 5.5 volts  
• Schmitt trigger controlled operation  
circuit startup timer in an 8 pin package. The high  
current capabilities of its outputs allow most LEDs to  
be directly driven, usually only requiring a single  
current limiting resistor.  
• Requires no external timing components  
• Warmup periods from 0.1 to 5 seconds  
• Auxiliary output active after warmup period  
• High current drive outputs - up to 25 mA  
The circuit startup, or warmup feature is useful  
for allowing a stabilizing time period to pass before  
enabling other circuits. This type of function is often  
used in audio amplifier circuits where it is desirable  
to block the speaker outputs until the amplifier  
stages have stabilized. This can eliminate the  
annoying ‘pop’ occasionally heard from audio  
amplifiers.  
Connection Diagram  
PDIP and SOIC  
(top view)  
The duration of the warmup period is selected  
by logic levels on two input pins, providing four  
discrete time intervals. All circuit timing is derived  
from internal circuitry, and no additional timing  
components are required for circuit operation.  
1
2
3
4
8
7
6
5
VDD  
AuxOut  
W1  
VSS  
Red  
Applications  
Green  
Trigger  
• Pilot ‘lamp’ circuits  
W0  
• Sequentially enabled systems  
• Delay on operate circuits  
• Audio amplifier power managers  
• Monostable (one-shot) circuits  
Block Diagram  
5
7
Trigger  
Red  
6
Green  
Warmup Period  
3
W1  
Control  
and  
Timing  
W1  
L
W0  
L
Period  
0.1 sec  
0.5 sec  
1 sec  
Flasher  
4
W0  
2
AuxOut  
L
H
H
L
H
H
5 sec  
ELM413DSA  
Elm Electronics – Circuits for the Hobbyist  
1 of 4  
< http://www.elmelectronics.com/ >  

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