INA139 DATASHEET PDF
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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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.
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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.
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.
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.