Data Sheet(pdf)

Hartcran House, 231 Kenton Lane, Harrow, Middlesex, HA3 8RP, England
Tel: +44 (0) 20 8909 9595, Fax: +44 (0) 20 8909 2233, www.radiometrix.com
28th May 2009
IRPS
Infra Red reflective proximity sensor
This simple IR proximity sensor uses 'modulated
burst' sensing method to avoid false triggering
and interference.
It has a range of about 4 -12cm (depending on the
type of reflective surface), and will not respond at
all to matt black. Response time is around 10mS,
and a small amount of hysteresis (about 1cm) is
included to avoid 'chattering' at limit range
Vertical and horizontal axis of 'sight' versions will
be available.
Figure 1: IRPS
Features
!
!
!
!
Up to 12cm range
Simple interface (2.7 - 3.6V at 7mA nominal, cmos output).
Low current consumption:
6mA average (20mA peak)
0.5mA (reset)
Small size: 22 x 17 x 13 mm
Applications
!
!
!
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Robotics
Alarms
Optical switches
Industrial sensing
Figure 2: IRPS demo board
Radiometrix Ltd
IRP Sensor Data Sheet
page 1
Figure 3: IRS footprint (top view)
Pin description
Pin
1
2
3
4
5
6
Name
OBJ
GND
RST
LED
GND
Vcc
Function
'high' when reflective object is in view
Ground
pull low to reset, and disable, the module
as pin 4, with series 470R resistor
Ground
2.7 -3.6v in (4 - 5v version available)
A
B
GND
GND
Ground
Ground
Notes:
1. Pin 1 (OBJ) is a cmos logic output
2. Pin 3 (n_RST) has a 100K pullup to Vcc
3. An optional light emitting diode (low current, 1206 package) can be fitted on the PCB
When fitted, it is connected between Pin 4 (LED) and GND
4. The module pinout fits on a 0.1" pitch matrix
5. Vertical and horizontal view versions are available
Technical Specifications
Range
Emission
Response time
Supply
voltage
current
Interface
user
Operating temperature
Size
Radiometrix Ltd
2 - 8cm initial detection (depending on surface sensed)
approx 1-2cm of hysteresis is present
940nM
OOK modulated datastream (approx 20kbit/sec)
< 10mS
2.7 - 3.6v (4 - 5v version available)
6mA average (20mA peak)
0.5mA (reset)
3, 3, 2 pin 0.1" pitch headers
-20 to +70 degrees centigrade
(Storage -30 to +70 degrees)
22 x 17 x 13 mm (vertical view version)
IRP Sensor Data Sheet
page 2
Radiometrix Ltd
Hartcran House
231 Kenton Lane
Harrow, Middlesex
HA3 8RP
ENGLAND
Tel: +44 (0) 20 8909 9595
Fax: +44 (0) 20 8909 2233
[email protected]
www.radiometrix.com
Copyright notice
This product data sheet is the original work and copyrighted property of Radiometrix Ltd. Reproduction in
whole or in part must give clear acknowledgement to the copyright owner.
Limitation of liability
The information furnished by Radiometrix Ltd is believed to be accurate and reliable. Radiometrix Ltd
reserves the right to make changes or improvements in the design, specification or manufacture of its
subassembly products without notice. Radiometrix Ltd does not assume any liability arising from the
application or use of any product or circuit described herein, nor for any infringements of patents or other
rights of third parties which may result from the use of its products. This data sheet neither states nor
implies warranty of any kind, including fitness for any particular application. These radio devices may be
subject to radio interference and may not function as intended if interference is present. We do NOT
recommend their use for life critical applications.
The Intrastat commodity code for all our modules is: 8542 6000.
R&TTE Directive
After 7 April 2001 the manufacturer can only place finished product on the market under the provisions of
the R&TTE Directive. Equipment within the scope of the R&TTE Directive may demonstrate compliance
to the essential requirements specified in Article 3 of the Directive, as appropriate to the particular
equipment.
Further details are available on The Office of Communications (Ofcom) web site:
http://www.ofcom.org.uk/radiocomms/ifi/
Information Requests
Ofcom
Riverside House
2a Southwark Bridge Road
London SE1 9HA
Tel: +44 (0)845 456 3000 or 020 7981 3040
Fax: +44 (0)20 7783 4033
[email protected]
European Radiocommunications Office (ERO)
Peblingehus
Nansensgade 19
DK 1366 Copenhagen
Tel. +45 33896300
Fax +45 33896330
[email protected]
www.ero.dk
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