pulldown resistor question

[Todd Mulske]

I am getting ready to put together a VV mod with a OKR-T/10-W12-C and just want to make sure I get the pulldown resistor correct. I have seen mods on the forum using a 10k pulldown for the okr-t6 regulator and was told it would work for the okr-t10 regulator as well. I pulled these specs off of Murata's site data sheet. Can anyone verify for me if I am reading it correctly that a 3 amp takes 100k, a 6 amp takes a 49k and a 10amp also takes a 49k.

OKR-T/3-W12-C

Remote On/Off Control (Note 5) [Standard version]
Positive Logic ON = +2 V. to +Vin max. or open pin
OFF = –0.3 to +0.4 V. max. or ground pin
Current 1 mA
Remote On/Off Control [“E” version]
Positive Logic ON = +2 V. to +Vin max.,
100KΩ pulldown to ground
OFF = open pin or –0.3 to +0.4 V. max.
Current 1 mA max.

OKR-T/6-W12-C
Remote On/Off Control (Note 5) [Standard version]
Positive Logic ON = +1.5 V. to +Vin max. or open pin
OFF = –0.3 to +0.4 V. max. or ground pin
Current 1 mA
Remote On/Off Control [“E” version]
Positive Logic ON = +2 V. to +Vin max.,
49KΩ pulldown to ground
OFF = open pin or –0.3 to +0.4 V. max.
Current 1 mA max.
Output

OKR-T/10-W12-C
Remote On/Off Control (Note 5) [Standard version]
Positive Logic ON = +1.5 V. to +Vin max. or open pin
OFF = –0.3 to +0.4 V. max. or ground pin
Current 1 mA
Remote On/Off Control [“E” version]
Positive Logic ON = +2 V. to +Vin max.,
49KΩ pulldown to ground
OFF = open pin or –0.3 to +0.4 V. max.
Current 1 mA max.

 

[WillyB]

You are posting the values from the “E” version". Is that the one you have?

BTW it's good that you are actually reading the datasheet.

 

[Todd Mulske]

It is the standard version. That would mean the 49K ohms resistor would not apply for the model that I have. Is this correct. Also am I reading this correctly to say that a 49K pulldown on the E version would keep the regulator on all the time.

 

[meatsneakers]

The OKR-6 definitely uses a 10k, the others I'm not sure.