Features: • Dual Marked with Device Number and DSCC Standard Microcircuit Drawing
• Manufactured and Tested on a MIL-PRF-38534 Certified Line
• QML-38534, Class H and K
• Hermetically Sealed 8-pin Dual In-Line Packages
• Performance Guaranteed over -55°C to +125°C
• ac or dc Input
• Programmable Sense Voltage
• Hysteresis
• HCPL-3700 Operating Compatibility
• Logic Compatible Output
• 1500 Vdc Withstand Test Voltage
• Thresholds Guaranteed over Temperature
• Thresholds Independent of LED CharacteristicsApplication• Military and Space
• High Reliability Systems
• Transportation, Medical, and Life Critical Systems
• Limit Switch Sensing
• Low Voltage Detector
• ac/dc Voltage Sensing
• Relay Contact Monitor
• Relay Coil Voltage Monitor
• Current Sensing
• Microprocessor Interface
• Telephone Ring Detection
• Harsh Industrial EnvironmentsPinout
SpecificationsStorage Temperature Range ................................ -65°C to +150°C
Operating Temperature .......................................... -55°C to 125°C
Lead Solder Temperature ..................................... 260°C for 10 s[2]
Average Input Current, IIN .................................................. 15 mA[3]
Surge Input Current, IIN,SG ............................................ 140 mA[3,4]
Peak Transient Input Current, IIN,PK .............................. 500 mA[3,4]
Input Power Dissipation, PIN ............................................ 195 mW[5]
Total Package Power Dissipation, Pd .....................................260 mW
Output Power Dissipation, PO ..................................................65 mW
Average Output Current, IO ..................................................... 40 mA
Supply Voltage,VCC (Pins 8-5) .............................. -0.5 min., 20 V max.
Output Voltage, VO (Pins 6-5) ............................... -0.5 min., 20 V max.DescriptionThese HCPL-576X devices are single channel, hermetically sealed, voltage/ current threshold detection optocouplers. The products are capable of operation and storage over the full military temperature range and can be purchased as either standard product, or with full MIL-PRF-38534 Class Level H or K testing, or from the DSCC Standard Microcircuit Drawing (SMD) 5962-89477. All devices are manufactured and tested on a MIL-PRF-38534 certified line and are included in the DSCC Qualified Manufacturers List, QML-38534 for Hybrid Microcircuits.
Each HCPL-576X unit contains a light emitting diode (LED), a threshold sensing input buffer IC, and a high gain photon detector to provide an optocoupler which permits adjustable external threshold levels. The input buffer circuit has a nominal turn on threshold of 2.5 mA (ITH+) and 3.6 volts (VTH+). The addition of one or more external attenuation resistors permits the use of this device over a wide range of input voltages and currents. Threshold sensing prior to the LED and detector elements minimizes effects of any variation in optical coupling. Hysteresis is also provided in the buffer for extra noise immunity and switching stability.
The HCPL-576X buffer circuit is designed with internal clamping diodes to protect the circuitry and LED from a wide range of over-voltage and over-current transients while the diode bridge enables easy use with ac voltage input.
These HCPL-576X units combine several unique functions in a single package, providing the user with an ideal component for computer input boards and other applications where a predetermined input threshold optocoupler level is desirable.
The HCPL-576X high gain output stage features an open collector output providing both TTL compatible saturation voltages and CMOS compatible breakdown voltages.
HCPL-576X is an eight pin DIP which may be purchased with a variety of lead bend and plating options. See Selection Guide Table for details. Standard Microcircuit Drawing (SMD) parts are available for each lead style.
HCPL-576X Data Sheet
