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What is open collector output?

ID:
925
Issued:
Dec 28th, 2009
Updated:
May 17th, 2013

What is open collector output?

ANSWER

A transistor is used in the output. When the sensor detects a person or object, the transistor turns on and current flows from the collector to the emitter, outputting a signal.

When open collector output is used, the current flow and voltage applied to the load connected to the output can be set as desired. This enables wide range of use in sequencers and other devices.
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