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Eliminate ground loops
Level shifting of signals
Line receiver
Power supply feedback loops
Motor control
Signal Isolation
DESCRIPTION
A Gallium Aluminum Arsenide (GaAlAs) infrared LED controlled by a high gain op amp illuminates two matched
phototransistors, one of which provides feedback to the op amp allowing a consistent output from the other. The regulation
provides protection against output signal degradation normally associated with time, temperature and even radiation. The
66229 can be tested to customer specifications, as well as to MIL-PRF-19500 JAN, JANTX, JANTXV and JANS quality levels.
CTR degradation worries are gone when you use the 66229.
ABSOLUTE MAXIMUM RATINGS
Input to Output Voltage.........................................................................................................................................................1000V
Emitter-Collector Voltage............................................................................................................................................................7V
Collector-Emitter Voltage .........................................................................................................................................................40V
Reverse Input Voltage ............................................................................................................................................................0.1V
Continuous Output Phototransistor Collector Current...........................................................................................................10mA
Power Supply Voltage ...................................................................................................................................................... +15Volts
Negative Supply Voltage鈥︹€︹€︹€︹€︹€︹€︹€︹€︹€︹€︹€︹€︹€︹€︹€︹€︹€︹€︹€︹€︹€︹€︹€︹€︹€︹€︹€︹€︹€︹€︹€︹€︹€︹€︹€︹€︹€︹€︹€?15Volts
Storage Temperature........................................................................................................................................... -65擄C to +125擄C
Operating Free-Air Temperature Range ............................................................................................................. -55擄C to +125擄C
Lead Solder Temperature (1/16鈥?(1.6mm) from case for 10 seconds) ................................................................................ 240擄C
Notes:
Schematic Diagram
g
1
Vcc (+)
Collector
R
7
0.325
R
Emitter
6
0.040
MAX
1
2
3
3 Vin
+
_
0.220
0.500
MIN
0.170
7
6
5
BOTTOM VIEW
External
Resistor
5 Vee (-)
2
GND
MICROPAC INDUSTRIES, INC. OPTOELECTRONIC PRODUCTS DIVISION
鈥?/div>
725 E.Walnut St., Garland, TX 75040
鈥?/div>
(972) 272-3571
鈥?/div>
Fax (972) 487-6918
www.micropac.com
E-MAIL:
optosales@micropac.com
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