AnsweredAssumed Answered

ZVL32-Dormant current abnormal

Question asked by Bin Huang on Apr 1, 2018
Latest reply on Apr 4, 2018 by Daniel Martynek

We have used this IC in production project.   20Kpcs have been produced  , current consumption is ok( less than 90 uA ) but recently,another batch(30K pcs)is produced ,the problem is that current consumption is more than 100 uA , the total number is 110 Pcs, A-B-A test was done, abnormal phenomena follow the chip.


I try to use simple code in the attachment to control current consumption in stop mode for bad parts,  but failed, but this code is test ok in good parts.Could you give me some advice about this problem


Hardware schematic:PAD1 and PAD0 were use to ADC input,pp1 and pp7 were used to pwm output,reset and bkgd were used,other pins were not be connect in schematic