AM336 Datasheet, PDF (1/12 Pages) Analog Microelectronics – IC FOR OPTO DETECTOR

IC FOR OPTO DETECTOR
AM 336
FEATURES
• 2 Operation Modes (Proximity and
Barrier)
• External Synchronisation in the
Barrier Mode
• Ambient Light Rejection
• Adjustable Threshold and Hysteresis
• Normally Open and Normally Closed
Outputs
• Driver for PNP Output Transistors
with Short Circuit Protection
• LED Output 8 mA (Source and Sink)
• Adjustable Detection Distance and
Hysteresis
• Dirt Indication in the Barrier Mode
• Internal Zener Diode for Voltage
Stabilisation (optional)
• Maximum Supply Voltage only
Depending on External Elements
GENERAL DESCRIPTION
The AM 336 is a bipolar monolithic integrated
circuit designed for optical detection applica-
tions.
By adding an external photodiode, an IR LED,
two PNP power transistors and a minimum of
other parts, the AM 336 will be a complete
optoelectronic interface (proximity and
barrier) for a reflective optical proximity
switch or for a light barrier with external
synchronisation.
APPLICATIONS
• Miniaturised One Way Light Barrier
• Miniaturised Reflection Light Barrier
• Frame Light Barrier
BLOCK DIAGRAM
FO
P/B
IND
OUTA
ALR
INA
GND
IRD
oscillator
T
VCC
:128
VZ
zener diode
T1
T2
:4
CSC
short circuit
pulse regulation
current regulation
SYNC
T1 T2 SC
amplifier
signal
B
detection
A
RH
RD
A B SC LED
X X L _T1
LLH L
L H H T2
HHH H
LED driver
output
driver
RS
QC
QO
LED
Figure 1: Block diagram of AM336
analog microelectronics
Analog Microelectronics GmbH
An der Fahrt 13, D – 55124 Mainz
Internet: www.analogmicro.de
Phone: [phone] – 0
Fax: [phone] – 30
Email: [e-mail]
February 2005
1/12
Rev. 1.1