HCPL-3700 – A3700 IC – AC/DC To Logic Interface Optocoupler IC
The HCPL-0370/3700 and HCPL-3760 are voltage/current threshold detection optocouplers. The HCPL3760 is a low-current version of the HCPL-0370/3700. To obtain lower current operation, the HCPL3760 uses a high-efficiency AlGaAs LED which provides a higher light output at lower drive currents. The devices utilize threshold sensing input buffer ICs which permit control of threshold levels over a wide range of input voltages with a single external resistor. The input buffer operates several features: hysteresis for extra noise immunity and switching immunity, a diode bridge for easy use with ac input signals, and internal clamping diodes to protect the buffer and LED from a wide range of over-voltage and over-current transients. Because threshold sensing is done prior to driving the LED, variations in optical coupling from the LED to the detector will have no effect on the threshold levels.
Applications:
- Limit switch sensing
- Low voltage detector
- 5 V-240 V AC/DC voltage sensing
- Relay contact monitor
- Relay coil voltage monitor
- Current sensing
- Microprocessor interfacing
Features/Specs:
- Max Input Current: 50mA
- Storage Temperature Range: -55°C to +125°C
- Operating Temperature Range: -40°C to +85°C
- Standard (HCPL-0370/3700) and low input current(HCPL-3760) versions
- AC or DC input
- Programmable sense voltage
- Hysteresis
- Logic compatible output
- Thresholds guaranteed over temperature
- Thresholds independent of LED optical parameters
Package Includes:
- 1 x HCPL-3700 – A3700 IC – AC/DC To Logic Interface Optocoupler IC
Datasheet: HCPL3700
Note: Product Images are shown for illustrative purposes only and may differ from the actual product.
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