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MPF5024AMBA0ES Datasheet(PDF) 63 Page - NXP Semiconductors |
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MPF5024AMBA0ES Datasheet(HTML) 63 Page - NXP Semiconductors |
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63 / 93 page  NXP Semiconductors PF5024 Power management integrated circuit (PMIC) for high performance applications PF5024 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2020. All rights reserved. Product data sheet Rev. 1 — 15 April 2020 63 / 93 Table 53. Thermal monitor specifications Symbol Parameter Min Typ Max Unit VIN Operating voltage range of thermal circuit UVDET — 5.5 V TCOF Thermal sensor coefficient — −3.8 — mV/ºC VTSROMM Thermal sensor voltage 24 ºC — 1.414 — V TSEN_RANGE Thermal sensor temperature range –40 — 175 ºC T80C 80 ºC temperature threshold 70 80 90 ºC T95C 95 ºC temperature threshold 85 95 105 ºC T110C 110 ºC temperature threshold 100 110 120 ºC T125C 125 ºC temperature threshold 115 125 135 ºC T140C 140 ºC temperature threshold 130 140 150 ºC T155C 155 ºC temperature threshold 145 155 165 ºC TSD Thermal shutdown threshold 155 165 175 ºC TWARN_HYS Thermal threshold hysteresis — 5.0 — ºC TSD_HYS Thermal shutdown hysteresis — 10 — ºC t_temp_db Debounce timer for temperature thresholds (bidirectional) — 10 — µs tSinterval Sampling interval time When TMP_MON_AON = 1 — 3.0 — ms tSwindow Sampling window When TMP_MON_AON = 1 — 450 — µs As the temperature crosses the thermal thresholds, the corresponding interrupts are set to notify the system. The processor may take appropriate action to bring down the temperature (either by turning off external regulators, reducing load, or turning on a fan). A 5 ºC hysteresis is implemented on a falling temperature in order to release the corresponding THERM_x_S signal. When the shutdown threshold is crossed, the PF5024 initiates a thermal shutdown and it prevents from turning back on until the 15 ºC thermal shutdown hysteresis is crossed as the device cools down. The temperature monitor can be enabled or disabled via I2C with the TMP_MON_EN bit. • When TMP_MON_EN = 0, the temperature monitor circuit is disabled. • When TMP_MON_EN = 1, the temperature monitor circuit is enabled. In the Run state, the temperature sensor can operate in always On or Sampling modes. • When the TMP_MON_AON = 1, the device is always on during the Run mode. • When the TMP_MON_AON = 0, the device operates in sampling mode to reduce current consumption in the system. In Sampling mode, the thermal monitor is turned on during 450 µs at a 3.0 ms sampling interval. In the Standby mode, the thermal monitor operates only in sampling mode as long as the TMP_MON_EN = 1. Table 54. Thermal monitor bit description Bit(s) Description THERM_80_I, THERM_80_S, THERM_80_M Interrupt, sense and mask bits for 80 ºC threshold THERM_95_I, THERM_95_S, THERM_95_M Interrupt, sense and mask bits for 95 ºC threshold THERM_110_I, THERM_110_S, THERM_110_M Interrupt, sense and mask bits for 110 ºC threshold THERM_125_I, THERM_125_S, THERM_125_M Interrupt, sense and mask bits for 125 ºC threshold THERM_140_I, THERM_140_S, THERM_140_M Interrupt, sense and mask bits for 140 ºC threshold |
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