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STPM098C Datasheet(PDF) 54 Page - STMicroelectronics |
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STPM098C Datasheet(HTML) 54 Page - STMicroelectronics |
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54 / 110 page  • If TSENn ≥ TOUTn_wr_th occurs for an interval longer than T_tout_mon_detect_dly, the TOUTn_OT_WR flag is set. The error flag remains set until the failure condition is removed [n = 1, 2]. • If TSENn ≥ TOUTn_sd_th occurs for an interval longer than T_tout_mon_detect_dly, the TOUTn_OT_SD flag is set. Fault pins and safe state activation depends on FHC configuration. TOUTn_OT_SD clearing depend on FHC configuration [n = 1, 2]. The reference thresholds for the TOUTn monitor unit TOUTn_wr_th and TOUTn_sd_th can be separately configured through a dedicated PMBus™ register as follows: TOUTnOTWRTH=TOUTMONtℎlsb×TOUTnOTWRTH8:0 (10) TOUTnOTSDTH=TOUTMONtℎlsb×TOUTnOTSDTH8:0 (11) Where: TOUT_MON_th_lsb is the minimum voltage step. TOUTn_OT_WR_TH/TOUTn_OT_SD_TH [8:0] are the dedicated PMBus™ configuration bits. The default values are TOUTn_OT_WR_TH = 0x12C (125 deg.) and TOUTn_OT_SD_TH = 0x152 (150 deg.). In case TOUTn_OT_WR_TH = 0x00 or TOUTn_OT_SD_TH = 0x000 the related temperature monitor functions are disabled and no detection is performed. The absolute value of the maximum input voltage slew rate detectable by TOUT monitor is given by TOUT_adc_lsb/TOUT_adc_latency. Figure 43. Output stage temperature monitor timing diagram t TSENn TOUTn _OT_SD (Internal signal) TOUTn_OT_WR (Internal signal) SHUTDOWN TOUTn_OT_SD_TH OPERATIVE OPERATIVE WARNING TOUTn_OT_SD_HYS TOUTn_OT_WR_HYS WARNING TOUTn_OT_WR_TH T_tout_mon_detect_dly TOUT_adc_rise_fall_sr TOUT_adc_rise_fall_sr T_tout_mon_detect_dly T_tout_mon_detect_dly T_tout_mon_detect_dly Table 45. TOUT monitor electrical characteristics Symbol Parameter Test condition Min Typ Max Unit Notes TOUT_MON_th_lsb TOUT monitoring threshold step - 5.33 - mV Application information TOUT_MON_th_hyst TOUT monitoring hysteresis - 42.64 - mV Application information TOUT_MON_th_range TOUT monitoring threshold range 0.1 - 2.7 V Application information T_tout_mon_detect_dly TOUT monitoring detection delay CLK_SSM_EN = 0 - 65 100 μs Application information STPM098C Functional description DS14440 - Rev 1 page 54/110 |
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