August 14, 2019 posted by

pendent and can range from V to 40V for the INA and. V to semiconductor products and disclaimers thereto appears at the end of this data sheet. The INA and INA are high-side, unipolar, current shunt monitors. Wide input common-mode voltage range, high-speed, low quiescent current, and. Texas Instruments INA Explore Texas Instruments on Octopart: the fastest source for datasheets, pricing, specs and availability.

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INA139 Datasheet

However, the datadheet monitors start drawing way too much current the instant power is applied. Initially, I had only the right hand side INA populated, then only the one on the left side of the schematic – both show the same behaviour. This would suggest that the problem dataheet appears when pins 3 and 4 on the chip see any voltage above ground.

Forums New posts Search forums. INA current monitor draws too much current.

INA Datasheet(PDF) – TI store

The battery voltage will not exceed 30 volts. Articles Top Articles Search resources. Post a good photo of front and back of your PCB or breadboard.


Thanks for any help. To sense the current coming from the solar panel and going into the battery, I use two INA current monitor chips. By continuing to use this site, you are consenting to our use of cookies.

Welcome to our site! So, to determine whether the IC itself is defective, tie both inputs together essentially shorting the current sensing resistor and see whether the IC repeats the anomalous behavior. Odysseas Member Oct 22, Odysseas Member Oct 21, There is nothing wrong with your schematic, it ties up perfectly with the INA datasheet. Thread starter Odysseas Start date Oct 21, Replacement Transformer Started by ncag Today at 7: Media New media New comments Search media.

Pioneer Elite vsxtx water damage no power Started by Watin Today at This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register. Not even a single miliamp. Datasheets, Manuals or Parts. I tried ramping up the battery voltage through a PSU no solar panel connected and at one volt, the current draw is already about mA. At one point, D4 wasn’t populated yet and the left hand side INA didn’t draw too much current.


Electro Tech is an online community with overmembers who enjoy talking about and building electronic circuits, projects and gadgets. For a better experience, please enable JavaScript in your browser before proceeding. From the data sheet: One has now disappeared in smoke. Click here to register now. You must log in or register to reply here. Replacing a 4 pin leaded inductor with a 2 pin Started by gkmaia Yesterday at Hi everyone, I’m trying to build a solar charger, using a simple boost configuration.

As it’s not, I’d very carefully check the pin connections and orientation of the ICs, a track fault or pin swap is the most likely problem. What could be going on here? I’ll triple check the pinout again.

I checked for short circuits and everything, nothing. To participate you need to register. Try to keep front and back photos the same size.