Datasheet > EPC110

EPC110

更新时间： 2024-11-05 10:14:11

品牌	Logo	应用领域
EPC		驱动
页数	文件大小	规格书
27页	588K
描述
Fully integrated configurable light barrier driver & receiver

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EPC110 数据手册

epc110

Fully integrated configurable light barrier driver & receiver

General Description

Features

The epc110 is a general purpose, fully integrated self-contained  Fully integrated light barrier chip

CMOS circuit to be used in light-barrier applications.

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

 Customer configurable version

for i.e. high sensitivity or high speed applications

 Integrated clock generator

 CSP10 package with very small footprint

or standard QFN16 package available

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.

Applications

 Light barriers ranging from millimeters to tens of meters

 Smoke detectors

 Liquid detectors

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 (µC) for more advance applications.

Functional Block Diagram

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

VDD33 VDD PROG

SCK

1 (9)

VDD

LED

SCK

Interface

8 (14)

VDD33

9 (12)

LED

Parameter

Memory

Processor

VDD18

10 (10)

SPI

Signal

Controller

Processor

3 (6)

2 (7)

4 (4)

7 (15)

6 (1)

5 (2)

OUTN OUTH

GND

Figure 1: Block Diagram

Configuration

Fix-parameter mode

epc110

Dynamic mode

standalone

controlled

µC --> “SPI” --> epc110

µC --> “SPI / EN” --> epc110

Ambient adaptive reading

Internal controlled light barrier read rate

External controlled light barrier read rate

Application

“EN” --> epc110

Static parameters

Table 1: Configurations versus applications

Characteristics subject to change without notice

Datasheet epc110 - V2.1

www.espros.ch

12 3 4 5 6 7...27

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