Datasheet > ELM307DSA

ELM307DSA

更新时间： 2024-09-19 03:56:55

品牌	Logo	应用领域
ELM		摄像机
页数	文件大小	规格书
4页	35K
描述
Camera Control

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数据手册

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ELM307DSA 数据手册

ELM307

Camera Control

Description

Features

The ELM307 is a retriggerable one-shot circuit

• Low power CMOS design - typically 1mA at 5V

• No external timing elements required

• Test mode assists with setup

that has been designed for electronically controlling

the shutter of a film or digital still camera. The circuit

provides a variable pulse width timer, a variable

delay reset timer, power control, and an LED status

drive all in an 8 pin package.

• Single pushbutton control

• Auto power off saves batteries

• LED output shows status

In operation, a monitored signal (alarm contact,

audio signal, oscillator signal, etc.) is applied to the

circuit’s Trigger input. A low level at this input

immediately causes an output at the Camera pin

(controlling the shutter) that lasts for the duration set

by PW. Further triggering is inhibited until an

additional period (set by Delay) passes, allowing

time for the film to advance or for the digital image to

be stored.

• High current drive outputs - up to 25mA

Connection Diagram

PDIP and SOIC

(top view)

To help with setup, the circuit has a test mode in

which the Camera output is blocked, and the LED is

instead energized. Toggling between the test mode

and the run mode is accomplished with the single

pushbutton input, as is the power on and off.

VDD

Delay

VSS

Camera

LED

Applications

• Security camera control

Trigger

• Candid shots of animals or people

• Time lapse photography

• Remote triggering of cameras

Block Diagram

Delay

Timer

Pulse

Generator

Camera

LED

Trigger

VDD

LED

Logic

Control

Logic

ELM307DSA

Elm Electronics – Circuits for the Hobbyist

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