Datasheet > ELM712

ELM712

更新时间： 2024-11-01 04:17:19

品牌	Logo	应用领域
ELM		/
页数	文件大小	规格书
3页	24K
描述
LED Runner

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ELM712 数据手册

ELM712

LED Runner

Description

Features

The ELM712 is a handy circuit for controlling up

• Low power CMOS design

to five LEDs in novelty devices. One pushbutton

press is all it takes to initiate about 15 seconds of

LED activity, before the circuit reverts back to its

very low current standby mode.

• Wide supply range - 3.0 to 5.5 volt operation

• Auto-off mode conserves batteries

• Single push-button to activate

All of the logic required for circuit operation is

contained wholly within this 8 pin integrated circuit.

Normally only a pushbutton, the LEDs, and a battery

are all that are needed for a complete circuit. At

higher voltages, a single current limiting resistor may

be required to limit LED current.

• Direct drive high current outputs

• No external timing components required

The ELM712 drives each LED output in a

sequential fashion, at approximately 10 Hz. By only

driving one output at a time, peak current and thus

battery requirements are reduced.

Connection Diagram

PDIP and SOIC

(top view)

Applications

• Campaign buttons

• Battery operated toys

• Dress ties

VDD

LED4

LED5

start

VSS

LED3

LED2

LED1

• Signs

• Holiday Ornaments

Block Diagram

Master Oscillator

Output Drivers

VDD

Power

Control

start

LED1 LED2 LED3 LED4 LED5

ELM712DSB

Elm Electronics – Circuits for the Hobbyist

< http://www.elmelectronics.com/ >

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