driven by - Elmos Semiconductor AG

driven by
E910.92
PIR motion detector
Features
General Description
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The E910.92 integrated circuit combines all required
functions for a single chip Passive Infra Red (PIR) motion
detector. A relay and an LED output are provided for interfacing to an occupancy detect or alarm system.
Fully integrated PIR motion detector
Supply voltage range 4.8 V to 48 V
Differential PIR sensor input
Digital Signal Processor (DSP)
Selectable relay output polarity
Selectable pulse count and timing algorithm
for motion detection
Temperature compensation input
Low current consumption
Operating temperature range -40°C to +85°C
SOIC 20 package
Due to the adjustable threshold and TRUE-ROLL™ time
window, the IC can be adapted to the requirements of
the application. Hereby an optimized detection accuracy is reached. One or two PIR sensors can be connected
directly to the PIR inputs. The pull-down resistors and
DC decoupling circuitry are integrated on chip. Internally, the PIR sensor signal is converted to a 15 bit digital
value.
The parameters for sensitivity, pulse count and timing are set by means of connecting the corresponding
inputs to VDD, VSS or leaving them open. The voltage
level on the temperature compensation input is converted to a digital value with 4 bit resolution. All signal
processing is performed digitally.
Applications
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PIR motion detection
Intruder detection
Occupancy detection
Motion sensor lights
IRA1
VDDA
11
PIRIN
12
VSSA
14
NPIRIN
13
Threshold/Sensitivity
PT0
PT0
PT1
PT1
VDD
VSS
5
VSSA
Input
Amplifier
A/D
Converter
DP0
17
DP1
DP1
16
Time Window
DT0
DT0
7
DT1
DT1
6
Threshold
Detector
Alarm
Event
Processor
VSS
ELMOS Semiconductor AG
10
VB
20
LED
19
RELAY
C1
L1
Output
Driver
VSSA
4
Pulse Count
DP0
Voltage
Regulator
Band
Pass
Filter
2
VDD
3
SENSE
18
VSS
9
TEST
Oscillator
8
RPOL
Temperature
Compensation
15
VSS
D1
Alarm
D2
R2
Supply
REL1
Alarm
Near
Far
S2
C3
C2 VDD
0V
VSS
N1
TCOMP
VDD
NTC
R3
R4
R5
E910.92
Info Sheet
QM-No.: 25IS0029E.00 2009-09-03
ELMOS Semiconductor AG – Headquarters
Heinrich-Hertz-Str. 1 | 44227 Dortmund | Germany
Phone + 49 (0) 231 - 75 49 - 100 | Fax + 49 (0) 231 - 75 49 - 149
[email protected] | www.elmos.de
Note ELMOS Semiconductor AG (below ELMOS) reserves the right to make changes to the product contained in this publication without notice. ELMOS assumes no responsibility for the use of any
circuits described herein, conveys no licence under any patent or other right, and makes no representation that the circuits are free of patent infringement. While the information in this publication
has been checked, no responsibility, however, is assumed for inaccuracies. ELMOS does not recommend the use of any of its products in life support applications where the failure or malfunction of
the product can reasonably be expected to cause failure of a life-support system or to significantly affect its safety or effectiveness. Products are not authorized for use in such applications.
Copyright © 2009 ELMOS Reproduction, in part or whole, without the prior written consent of ELMOS, is prohibited.