MICROPAC INDUSTRIES, INC. OPTOELECTRONIC PRODUCTS DIVISION • 725 E.Walnut St., Garland, TX 75040 • (972) 272-3571 • Fax (972) 487-6918
www.micropac.com E-MAIL: optosales@micropac.com



66229 CONSTANT CURRENT TRANSFER RATIO, SINGLE CHANNEL
OPTOCOUPLERS, SCREENED TO JAN, JANTX, JANTXV

Mii
OPTOELECTRONIC PRODUCTS
DIVISION
10/17/02 Rev B


Features:

• Vin (volts) =Iout (mA)
• Vin/Iout is constant within 4.0% over temperature
• Minimum component count for high reliability
• Rugged package (TO-5 )
• Internal amplifier for regulation
• Rugged output transistor


Applications:

• 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…………………………………………………………………………………………………………-15Volts
Storage Temperature........................................................................................................................................... -65°C to +125°C
Operating Free-Air Temperature Range ............................................................................................................. -55°C to +125°C
Lead Solder Temperature (1/16” (1.6mm) from case for 10 seconds)................................................................................ 240°C

Notes:




External
Resistor
1
3
7
2
6
5
R
R
Vcc (+)
Vee (-)
Collector
Emitter
Vin
GND
0.325
0.040
MAX
0.500
MIN
0.170
0.220
BOTTOM VIEW
Schematic Diagram
g
+
_
1
2
3
5
6
7