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A5219 Datasheet - ETC

A5219_ETC.pdf

A5219 Datasheet Preview — Preview of A5219 PDF

Datasheet Details

Part number:

A5219

Manufacturer:

ETC

File Size:

60.68 KB

Description:

Supervisor ic indicates fan failure.

A5219, Supervisor IC indicates fan failure

DESIGN SHOWCASE Supervisor IC indicates fan failure The brushless DC fans found in many types of equipment can be crucial to the performance and longevity of that equipment.
A quick indication of fan failure, moreover, can be essential in preventing major damage.
Among the many approaches for identifying and indicating stalled fans, the circuit of Figure 1 is very simple and reliable.
The fan’s tachometer output connects to the watchdog input of a µP supervisor (U1).
The LED remains off during n

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