Part Number: UC1903 Tool/software: Hi, It looks like the Ultralibrarian schematic symbol ( in Altium) for UC1903 -fk (LCC part) is completely wrong. There is also no LCC footprint datasheet to check if the Ultra librarian footprint is correct. Any help…
Part Number: UC1903 Hi,
If I don't use SENSE 4 INVERT INPUT, what is the proper way to handle this pin? Please note that a signal will be connected to "SENSE 4 INPUT", so we are considering a processing method that will not affect it.
Best…
Part Number: UC1903 Hello,
Seeking help on classifying lifecycle of UC1903J. Shows active on TI site, but "not available". Can you confirm part is still active? Interested in RFQ for 100 pcs.
Thanks,
Austin
Part Number: UC1903 I am using the following circuit with UC1903 IC to monitor a negative supply.
R1=11K, R2 = 56K. I am using WADJ = 1V for a +/-10% threshold limit. The IC is powered by +15V which is also potentially divided to 2.5V to monitor using…
Part Number: UC1903 Hi,
I am using the attached circuit. The POWER OK output is showing a "HEALTHY" condition when i float the negative inputs whereas i was expecting a "NON-HEALTHY" state. I am completely disconnecting the negative input in this condition…
i did not upload any schematic. I am using the same circuit as suggested in page 8 of the datasheet of the IC UC1903. Can you please refer the datasheet itself and check the issue? Kindly read my issue in the top of the post.
We have a need to repalce either of these two supervisory chips. Need inductrial tamp range and very similar functionality. Are there new chips which do almost the same...I can change R-C values required around the chip. It should be in gull wing or similar…
Mateusz,
I think the best solution is UC1903 device family. This device has wide input voltage range and can monitor 4 voltages for undervoltage and overvoltage in addition to 1 negative voltage monitor.
http://www.ti.com/product/uc1903
Please provide…
