SFH551-1 Просмотр технического описания (PDF) - Siemens AG

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SFH551-1

Integrated Photo Detector Receiver for Plastic Fiber Plastic Connector Housing

Siemens AG 

Block Diagram

SFH551/1

SFH551/1V

Vcc

Data

Gnd

A bypass capacitor (100nF) near the device (distance≤3cm) is necessary between

ground and VCC.

Description

The SFH551/1V is a transimpedance amplifier with digital TTL open collector output

stage and integrated photodiode. The active area of the detector in connection with

the molded microlens gives an efficient coupling from the end of a plastic fiber.

The receiver is fully DC coupled and therefore no line code is needed.

The SFH551/1V includes a Schmitt trigger function to provide stable output states

over the whole dynamic range. With noise free Vcc and GND no undefined output

signal is possible

SFH551/1 must not be used without shielding the ambient light, because ambient

light causes malfunction when reaching the threshold level, noise or complete

switching the output. Interference free transmission is possible by using the

SFH551/1V with the black plastic connector housing.

Maximum Ratings

Parameter

Operating Temperature Range

Storage Temperature Range

Soldering Temperature

(2mm from case bottom t≤5s)

Supply Voltage Range without Damage

Minimum Supply Voltage for Function

Minimum Pullup Resistance

(VCC =5V)

Output Voltage

Output Current

Power Dissipation (output)

Symbol Values

Unit

TOP

-40 to +85

°C

TSTG -55 to +100

°C

TS

260

°C

VCC

-0,5 to 15

V

VCCmin

4

V

Routmin

330

Ω

V0

-0,5 to 15

V

I0

50

mA

P0

100

mW

Semiconductor group

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13.09.96

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