EPC110 EPC [Espros Photonics corp], EPC110 Datasheet

EPC110

Manufacturer Part Number

EPC110

Description

Fully integrated configurable light barrier driver & receiver

Manufacturer

EPC [Espros Photonics corp]

Datasheet

1.EPC110.pdf (27 pages)

Current page: 1 of 27
Download datasheet (601Kb)

General Description

The epc110 is a general purpose, fully integrated self-contained

CMOS circuit to be used in light-barrier applications.

The chip contains a controller which drives an LED, typically an IR-

LED. The LED is used in a pulsed mode to increase the signal-to-

noise ratio even when there is very strong sunlight biasing the photo

diode.

It contains also a high sensitive photo diode amplifier and a signal

conditioning circuitry to cancel unwanted environmental light including

strong sunlight and pulsed light sources. The receiver is built around a

synchronous demodulator circuitry. Two output signals with different

threshold levels are implemented in order to trigger the light barrier

output or to indicate light reserve.

The chip also includes a power supply circuitry to establish all

internally required voltages from one source only.

It can be used either as a standalone device, forming the whole core

of an industrial light barrier. It can also be used together with a micro-

controller ( C) for more advance applications.

Functional Block Diagram

for 10-Pin Chip Scale Package (for 16-pin QFN Package)

Characteristics subject to change without notice

Configuration

standalone

controlled

VDD33

VDD PROG

VDD33

VDD18

10 (10)

9 (12)

Fully integrated configurable light barrier driver & receiver

VDD

Fix-parameter mode

GND

Static parameters

“EN” --> epc110

1 (9)

2 (7)

epc110

4 (4)

Table 1: Configurations versus applications

Processor

Controller

Interface

SPI

Figure 1: Block Diagram

C --> “SPI / EN” --> epc110

Ambient adaptive reading

7 (15)

C --> “SPI” --> epc110

Dynamic mode

OUTN

Features

Applications

Processor

6 (1)

 Fully integrated light barrier chip

 Needs just a photo diode and a LED with a LED driver

 Customer configurable version

 Integrated clock generator

 CSP10 package with very small footprint

 Light barriers ranging from millimeters to tens of meters

 Smoke detectors

 Liquid detectors

Signal

for i.e. high sensitivity or high speed applica tions

or standard QFN16 package available

OUTH

5 (2)

Parameter

Memory

External controlled light barrier read rate

Internal controlled light barrier read rate

Application

LED

SCK

8 (14)

3 (6)

Datasheet epc110 - V2.1

SCK

LED

www.espros.ch

epc110

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