am336-2 AME, Inc., am336-2 Datasheet

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am336-2

Manufacturer Part Number
am336-2
Description
Ic For Opto Detector - Analog Microelectronics
Manufacturer
AME, Inc.
Datasheet
IC FOR OPTO DETECTOR
FEATURES
x 2 Operation Modes (Proximity and
x External Synchronisation in the
x Ambient Light Rejection
x Adjustable Threshold and Hysteresis
x Normally Open and Normally Closed
x Driver for PNP Output Transistors
x LED Output 8 mA (Source and Sink)
x Adjustable Detection Distance and
x Dirt Indication in the Barrier Mode
x Internal Zener Diode for Voltage
x Maximum Supply Voltage only
BLOCK DIAGRAM
Figure 1: Block diagram of AM336
analog microelectronics
Analog Microelectronics GmbH
An der Fahrt 13, D – 55124 Mainz
Internet: www.analogmicro.de
OUTA
Barrier)
Barrier Mode
Outputs
with Short Circuit Protection
Hysteresis
Stabilisation (optional)
Depending on External Elements
GND
P/B
ALR
FO
IND
INA
amplifier
oscillator
IRD
SYNC
T
RH
detection
signal
:128
VCC
Phone:
Fax:
Email:
RD
B
+49 (0)6131/91 073 – 0
+49 (0)6131/91 073 – 30
info@analogmicro.de
A
T1
zener diode
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
barrier) for a reflective optical proximity
switch or for a light barrier with external
synchronisation.
APPLICATIONS
x Miniaturised One Way Light Barrier
x Miniaturised Reflection Light Barrier
x Frame Light Barrier
T1
:4
VZ
A
X
L
H
L
LED driver
B
L
H
H
X
X X
T2 SC
T2
SC
L
H
H
H
interface
LED
T1
T2
L
H
current regulation
pulse regulation
short circuit
(proximity
CSC
AM 336
output
driver
February 2005
Rev. 1.1
LED
1/12
QC
QO
and
RS

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am336-2 Summary of contents

Page 1

... P/B SYNC IND OUTA ALR amplifier INA GND RH Figure 1: Block diagram of AM336 analog microelectronics Analog Microelectronics GmbH An der Fahrt 13, D – 55124 Mainz Internet: www.analogmicro.de GENERAL DESCRIPTION The AM 336 is a bipolar monolithic integrated circuit designed for optical detection applica- tions. By adding an external photodiode LED, ...

Page 2

IC FOR OPTO DETECTOR ABSOLUTE MAXIMUM RATINGS DC Supply Voltage V CC Current Zener Diode I ZD Junction Temperature T J Storage Temperature Range T st Operating Temperature Range T ELECTRICAL SPECIFICATIONS T = 25° 6.5V ...

Page 3

IC FOR OPTO DETECTOR Parameter Symbol Output stages Output current (on Output current (off) I off Q Current limitation threshold VS LED driver LED current (low) I low LED LED current (high) I high LED Short circuit ...

Page 4

IC FOR OPTO DETECTOR FUNCTIONAL DIAGRAM + Rtd2 Rtd1 IRD + PROXIMITY BARRIER P/B IND VTA + Cin Rta Rin Rtb OUTA VTB VR Ra ALR Ca Rb INA GN RH Figure ...

Page 5

IC FOR OPTO DETECTOR Signal detection stage: Triggered window comparator, trigger at the end of emitting–pulse, "one pulse system" (no signal filtering). Output stages: Two antivalent outputs for external PNP Darlington transistors, short circuit protection with external resistor, periodically shutdown ...

Page 6

IC FOR OPTO DETECTOR frequency it to high the signal detection is not triggered. In case of a too low frequency a pulsed signal could occur at the output stages. Connection pins: FO, IRD, P/B AMPLIFIER: The input stage for ...

Page 7

IC FOR OPTO DETECTOR close as possible to the pin to prevent noise. Also, in case of high emission-currents, blocking capacitors against V are useful. CC The comparator signals are taken over into the flip–flops with the positive slope of ...

Page 8

IC FOR OPTO DETECTOR PADOUT PAD NAME DESIGNATION 1 LED LED driver output 2 RD Detection distance adjustment 3 VZ Zener diode 4 RS Sense input for current regulation and short circuit 5 QO Output for PNP–Darlington, normally open 6 ...

Page 9

... I ND VCC Figure 4: Internal/external synchronisation [mode selection (pin P/B) available 336 OUTA 4 13 ALR 5 12 INA 6 11 GND AM336 February 2005 9/12 ...

Page 10

IC FOR OPTO DETECTOR APPLICATION EXAMPLES Rts Rt Rtd1 10 68 820 Tt BSS60 Rtd2 Cs 560 10P IRD 10P Cin IND 14 10n OUTA ALR Ca 12 4n7 INA Dt GND GL360 11 ...

Page 11

... IC FOR OPTO DETECTOR EXTERNAL VOLTAGE STABILISATION AND USE OF BOTH OUTPUTS VCC RS QO AM336 QC GND Ts Figure 9: External Voltage Stabilisation General application hints: The nearness of the emission stage with a powerful pulsed current source and the sensitive photoamplifier require a careful breadboarding (and layout) of the circuit. ...

Page 12

IC FOR OPTO DETECTOR TYPICAL VALUES Symbol D SFH40x; SFH41x; SFH48x; Siemens or GL 360; Sharp T D SHF21x ; SFH22x ; Siemens or PD 480; Sharp typical; depending on noise caused by emission current T, S ...

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