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ACPL-K370 - Isolated Voltage/Current Detector

Description

The ACPL-K370 and ACPL-K376 are voltage/current threshold detection optocouplers.

The ACPL-K376 is a lowcurrent version of the ACPL-K370.

To obtain lower current operation, the ACPL-K376 uses a high-efficiency AlGaAs LED which has higher light output at lower drive currents.

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 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 not effect the threshold levels. The ACPL-K370 input buffer IC has a nominal turn-on threshold of 3.8 V(VTH+) and 2.77 mA (ITH+). The buffer IC for the ACPL-.

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Datasheet Details

Part number ACPL-K370
Manufacturer AVAGO
File Size 124.76 KB
Description Isolated Voltage/Current Detector
Datasheet download datasheet ACPL-K370 Datasheet

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Full PDF Text Transcription

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ACPL-K370, ACPL-K376 Isolated Voltage/Current Detector Data Sheet Description The ACPL-K370 and ACPL-K376 are voltage/current threshold detection optocouplers. The ACPL-K376 is a lowcurrent version of the ACPL-K370. To obtain lower current operation, the ACPL-K376 uses a high-efficiency AlGaAs LED which has higher light output at lower drive currents. Both devices have a threshold sensing input buffer IC that allows threshold levels to be set by a single external resistor over a wide range of input voltages. The input buffer has several performance enhancing 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 over-voltage and over-current transients.
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