Can LM3914,5,6 bar-dot driver work as a stand alone, driving an analog meter with a hall input?

 

No, but you could use an LM2909 to convert frequency to a voltage to drive the meter.

 

Sorry, the LM2909 is hard to find....

 

Or you could buy one of these:-

https://www.ebay.co.uk/itm/Frequenc...var=581658322075&_trksid=p2060353.m1438.l2649

 

Of the 5 versions of F to V converters I have in my files, Digikey lists prices for the following:
LM2917
NJM4151
RC4152

 

LED Tachometer Circuit

 

LED Tachometer Circuit

I found this and built one already. I found it to be very fiddly, but I finally got it to work. I don't want to go thru that again.

 

.. ^ The original idea was to use a pulse from a Hall effect sensor as the input to an integrating op-amp circuit, connected to a bleed/drain resistor in some manner. That particular idea is not yet developed or refined to the point of being a practical circuit.

 

LM2917 - that's what it's designed for.
https://www.ti.com/lit/ds/symlink/l...https%3A%2F%2Fwww.ti.com%2Fproduct%2FLM2917-N

 

LM2917 - that's what it's designed for.
https://www.ti.com/lit/ds/symlink/lm2917-n.pdf?ts=1607847728334&ref_url=https%3A%2F%2Fwww.ti.com%2Fproduct%2FLM2917-N

Thanks folks! I'll get one and see how it goes.

 

Sorry, the LM2909 is hard to find....

Typo'ed the part number.

Digikey has LM2907 and 2917.

EDIT: So does Newark.

 

The LM331, which is quite common, may also be configured as a V to F converter.

You have many options.

 

Right, 2901-17, 311, got it, thanks!