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PDF ELM413 Data sheet ( Hoja de datos )
| Número de pieza | ELM413 | |
| Descripción | LED Driver | |
| Fabricantes | ELM | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de ELM413 (archivo pdf) en la parte inferior de esta página. Total 4 Páginas | ||
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ELM413
LED Driver
Description
The ELM413 is both an LED controller and a
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.
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.
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.
Applications
• Pilot ‘lamp’ circuits
• Sequentially enabled systems
• Delay on operate circuits
• Audio amplifier power managers
• Monostable (one-shot) circuits
Features
• Low power CMOS design - typically 1mA at 5V
• Operates over a supply range of 3.0 to 5.5 volts
• Schmitt trigger controlled operation
• 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
Connection Diagram
PDIP and SOIC
(top view)
VDD 1
AuxOut 2
W1 3
W0 4
8 VSS
7 Red
6 Green
5 Trigger
Block Diagram
Trigger 5
Warmup Period
W1 W0 Period
L L 0.1 sec
L H 0.5 sec
H L 1 sec
H H 5 sec
W1 3
W0 4
Control
and
Timing
Flasher
7 Red
6 Green
2 AuxOut
ELM413DSA
Elm Electronics – Circuits for the Hobbyist
< http://www.elmelectronics.com/ >
1 of 4
Free Datasheet http://www.datasheet4u.com/
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| Páginas | Total 4 Páginas | |
| PDF Descargar | [ Datasheet ELM413.PDF ] | |
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