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Moteur de recherche de fiches techniques de composants électroniques |
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Moteur de recherche de fiches techniques de composants électroniques |
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L9300 Fiches technique(PDF) 47 Page - STMicroelectronics |
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L9300 Fiches technique(HTML) 47 Page - STMicroelectronics |
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47 / 178 page  Table 24. Thermal monitor electrical characteristics Symbol Parameter Test condition Min Typ Max Unit Thermal Monitor T_INT_acc Thermal sensor accuracy Guaranteed by design -10 10 °C T_SD_INT Thermal shutdown threshold 175 185 °C T_SD_flt Thermal shutdown filter time Guaranteed by scan 7.5 10 12.5 µs 9.5.3 Thermal monitor error handling Table 25. Thermal monitor error handling Type of error Detection condition Action Clear SPI flag Restart condition CORE OT ON state All ASIC functions except Charge Pump disabled, T_SD_int fault bit (8) set in SPI Temperature sensor register On read Automatic with retrigger of power- up sequence after fault disappears 9.6 Battery monitor 9.6.1 Battery monitor functional description The device includes a voltage monitor that detects the under voltage and over voltage condition on VBATP pin. In case of under voltage (VB_UV1) or over voltage (VB_OV) the device reacts as indicated in the Functional table chapter and in case of over voltage the proper diagnostic bit is set and latched in the SPI register. 9.6.2 Battery monitor electrical characteristics 5.5 V ≤ VBATP ≤ 19 V; -40 °C ≤ Tj ≤ 175 °C, unless otherwise noticed. All voltages refer to GND pin. Table 26. Battery monitor electrical characteristics Symbol Parameter Test condition Min Typ Max Unit Pin Battery Monitor VBATP_UV VBATP under voltage 3 3.8 V VBATP VBATP_UV_HYS VBATP under voltage hysteresis 200 mV VBATP VBATP_UV_FLT VBATP under voltage filter time Guaranteed by scan 7.5 10 12.5 µs VBATP VBATP_OV VBATP over voltage 27 31 V VBATP VBATP_OV_HYS VBATP over voltage hysteresis 2 V VBATP VBATP_OV_FLT VBATP over voltage filter time Guaranteed by scan 75 100 125 µs VBATP 9.6.3 Battery monitor error handling Table 27. Battery monitor error handling Type of error Detection condition Action Clear SPI flag Restart condition VBATP_uv ON state Outputs OFF as in Functional Table, set VBATP UNDER VOLTAGE bit (2) in SPI SERVFLT. register, reset according to SPI map table On read Power up sequence retriggered after fault disappears, configuration to be renewed VBATP_ov ON state Solenoid drivers and pre-drivers disabled, LS clamp of solenoid outputs disabled; set VBATP OVER VOLTAGE bit (1) in SPI SERVFLT register On read After fault disappear, set ENCHx, Fail Safe Pre-Driver Enable, Pump Pre-Driver Enablein SERVENA register, DRVENAx bit in SolEnDRVregister, L9300 Reset DS12258 - Rev 5 page 47/178 |
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