ELM337 Datasheet Light Switch

Manufacturer: ELM Electronics

Overview: ELM337 Light Switch.

Datasheet Details

Part number	ELM337
Manufacturer	ELM Electronics
File Size	20.27 KB
Description	Light Switch
Datasheet	ELM337_ELMElectronics.pdf

General Description

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.

Key Features

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 Connection Diagram PDIP and SOIC (top view) VDD 1 M2 2 M1 3 M0 4 8 VSS 7 Light 6 Dark 5 LDR Block Diagram LDR 5 Line Frequency Detector Program.

ELM337 Distributor

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