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TPS27SA08 or ITS428L2 12V High side switch

jmcgover

Feb 3, 2022
1
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Feb 3, 2022
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Hi All, I am looking at using either of the two high side switches for my electronics design. The TPS27SA08 from TI or the ITS428L2 from Infinion. Has anybody used either of these or have any preference to one over the other. My use case is to use a SPST mechanical switch to bring in 3.3V to the enable pin and switch in 12V with a 7A load requirement to my system. The system consists of microcontrollers, heater panels, motors and optical electronics. Both ICs recommend resistor to power ground on the ground pin for reverse polarity connection. The TPS27SA08 has 6 Vout pins whereas the ITS has only 1 Vout Pin while both have a pad for the Vbb input connection. Both have diagnostics that I will not be using except to have a header for debug if required. Ron for TPS27SA08 is 9mOhms compared to 60mOhms for the ITS428L2. The datasheet for the ITS part has no layout recommendations. Any inputs appreciated.upload_2022-2-3_11-15-20.pngupload_2022-2-3_11-15-55.png
 
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