0.2V
(Frequenzbereich: 0...20kHz)
Supply voltage noise
(frequency range: 0...20kHz)
Ausgangsspannung
V
o
1.73.6V
Output voltage
Pull-up Widerstand
R
pull up
10100kOhm
Pull-up resistance
* Der Emitter wird mit 10mA gepulst betrieben; das bedeutet, dass jeder Widerstand in Serie zu V
cc
einen Spannungsabfall in der Versorgungsleitung verursacht. Daher wird empfohlen, diesen
V
Serienwiderstand kleiner 10 Ohm zu halten. Die minimale Versorgungsspanung (
) darf keinesfalls
cc min
unterschritten werden.
V
* The emitter is driven with 10 mA in pulsed mode; this means that any series resistor to
causes a
cc
voltage drop on the power line. It is recommended to keep the series resistor below 10 Ohm. The supply
voltage may not fall below
V
cc min
2007-10-163
Kennwerte
Characteristics
(TA=25°C)
SFH 7710
Bezeichnung
Parameter
Minimale Betriebsspannung für Startphase(
siehe Figure 3)
Minimum required supply bvoltage for start-up (
Länge der Startphase
Start up time
(see Figure 3
Durchschnittlicher Stromaufnahme
mean current consumption
Spitzenstromaufnahme
peak current consumption
(siehe Figure 3)
)
1)
1)
2)
1)
Ausgangsleckstrom „high“
Output leakage current „high“
O = 3,6V
V
Ausgangsleckstrom „low“
Output leakage current „low“
Ol = 10mA (V
I
Aktualisierung des Ausgangssignals
Refresh of output signal
= 2,3V)
cc
1)
1)
see Figure 3)
Symbol
Symbol
Wert
Value
Einheit
Unit
Min.Typ.Max.
V
cc,start
t
start60120ms
mean
I
0.82.0V
50µA
Ipeak20mA
OH5µA
I
V
OL0.5V
trefresh90ms
Kippwinkel mit Ausgangszustand „low“
Tilt angle with output state „low“
(see Figure 1)
Kippwinkel mit Ausgangszustand „high“
Tilt angle with output state „high“
1)
gepulster Betrieb: Dauer LED an: ~44µs / Dauer LED aus: ~90ms
pulsed operation mode: LED on time: ~44µs / LED off time: ~90ms
2)
gepulster Betrieb: Dauer LED an: ~44µs / Dauer LED aus: ~90ms
pulsed operation mode: LED on time: ~44µs / LED off time: ~90ms
2007-10-164
(siehe Figure1)
(siehe Figure1)
(see Figure 1)
α
t70200°
α
u25020°
Funktionsdiagramm
Functional diagram
y
V
SFH 7710
αβ
y
20˚
out
= high
Switching Range
70˚
y
60˚-60˚
x
α
z
β
250˚
Switching Range
200˚
Figure1:
Erfassungscharakteristik / Detecting characteristics
(Unter extremen Bedingungen (hohe Temperatur und/oder hohe relative Feuchte) kann vorübergehend eine grössere
Schaltwinkeltoleranz auftreten)
(Under extreme conditions (high temperature and/or high relative humidity) a wider switching angle tolerance can occur
temporarily)
x
= low
V
out
Sensing Range
z
OHF03942
2007-10-165
Blockdiagramm
block diagram
V
CC
ASIC
R
SFH 7710
pull up
LED Anode
(must not be
connected)
Figure2:
Blockdiagramm (empfohlener Pull-Up-Widerstand R
Block diagram (recommended Pull up resistance R
LED
Phototransistor
GND
pull up = 10kOhm...100kOhm)
pull up = 10kOhm...100kOhm)
V
O
Device
boundaries
OHF03939
2007-10-166
SFH 7710
Startverhalten und Ablaufdiagramm
Start-up behavior and Timing diagramm
Der Ausgang ist immer hochohmig, wenn an Vcc keine Spannung angeschlossen ist. Wenn die Versorgungsspannung
V
cc , start erreicht, bleibt der Ausgang für 60ms <tstart <120ms auf „low“. Anschließend findet etwa alle 90ms eine
Messung der Orientierung statt und der Ausgang wird entprechend geschalten.
The Output is always high ohmic when voltage at V
sensor output stays low for 60ms <t
the output is set accordingly.
CC
V
V
CC, min
V
CC, start
start <120ms. Subsequently approx. every 90ms the orientation is measured and
Supply Voltage
LED
I
I
peak
cc is not connected. When supply voltage reaches Vcc, start the
t
start
t
start
tt
refresh
refreshtrefresh
t
LED Current
O
V
V
Output Voltage
V
OH
V
for α = 250˚...20˚= 70˚...200˚
OL
O
V
OH
αfor
V
Output Voltage
Figure 3:
Startverhalten und Ablaufdiagramm des Sensors
The information describes the type of component and shall not be considered as assured characteristics.
Terms of delivery and rights to change design reserved. Due to technical requirements components may contain
dangerous substances. For information on the types in question please contact our Sales Organization.
Packing
Please use the recycling operators known to you. We can also help you – get in touch with your nearest sales office.
By agreement we will take packing material back, if it is sorted. You must bear the costs of transport. For packing
material that is returned to us unsorted or which we are not obliged to accept, we shall have to invoice you for any costs
incurred.
Components used in life-support devices or systems must be expressly authorized for such purpose! Critical
components
1
A critical component is a component usedin a life-support device or system whose failure can reasonably be expected
1
, may only be used in life-support devices or systems 2 with the express written approval of OSRAM OS.
to cause the failure of that life-support device or system, or to affect its safety or effectiveness of that device or system.
2
Life support devices or systems are intended (a) to be implanted in the human body, or (b) to support and/or maintain
and sustain human life. If they fail, it is reasonable to assume that the health of the user may be endangered.
2007-10-1610
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