R
Raveninghorde
- Jan 1, 1970
- 0
I am using a DS2438 as a battery monitor. The app notes recommend a
series 330 ohm in the DQ line for static protection. The data sheet
shows 4k7 as the master pull up resistor.
I have a Link45 serial to 1-wire interface and the cooms does not
work. A quick check shows a 1k bus pull up. So the 330 ohm is not
allowing the output from the battery to get lower than about 1.2V.
Is there actually a specified min and max for the bus pull up
resistor. I.m looking but haven't found a specification yet.
series 330 ohm in the DQ line for static protection. The data sheet
shows 4k7 as the master pull up resistor.
I have a Link45 serial to 1-wire interface and the cooms does not
work. A quick check shows a 1k bus pull up. So the 330 ohm is not
allowing the output from the battery to get lower than about 1.2V.
Is there actually a specified min and max for the bus pull up
resistor. I.m looking but haven't found a specification yet.