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STPM066S датащи(PDF) 43 Page - STMicroelectronics |
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STPM066S датащи(HTML) 43 Page - STMicroelectronics |
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43 / 67 page ![]() 6 Device operating mode STPM066S can work in different operative modes according to input/SPI signals, OTP/SPI settings, fault management and regulators status. Figure 20. State machine SHUTDOWN STANDBY INIT RAMPUP BUCK SEC UP ACTIVE REC WKUP pin high WKUP pin low Buck fail (PG = 0 & timer expired ) Buck ok (PG = 1 before timer expired ) Power on Sec up end SECUP fail<3 INIT ok & VBAT2 > Vok Timer Buck fail (PG = 0 or PGND loss) Buck fail (PG = 0 or PGND loss) INIT nok & Otp_prg_Flag != 000 & OTP_DL_END=1 WKUP pin low SECUP fail=3 RST fail (except WD_ RST) OTP programming VBAT1 > Vpor & Otp_prg_Flag _ = 000 & OTP_DL_END=1 WKUP high >Twk_rec & REC_CNT* inv(inf_retrial_en)<3 PGND loss WD_RST& WD_REC_en=1 WD fail & WD_REC_en=0(default ) WKUP pin low GADG3105191227PS VBAT1<Vpor VBAT1>Vpor STPM066S Device operating mode DS12976 - Rev 2 page 43/67 |
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