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LT3045 bảng dữ liệu(PDF) 44 Page - Analog Devices |
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LT3045 bảng dữ liệu(HTML) 44 Page - Analog Devices |
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44 / 62 page ![]() Data Sheet LT3074 analog.com Rev 0. 44 of 62 Figure 91. Summary of Faults Reported in the LT3074 Once the LT3074 pulls down the ALERT pin, the device continues to hold the pin low until one of the following occurs: The LT3074 is disabled and enabled again using the EN/UV pin. A CLEAR_FAULTS or MFR_RESET command is received (and the fault that caused the LT3074 to assert the ALERT pin low is not persistent). All status bits are cleared by writing a 1 to each bit (and the fault that caused the LT3074 to assert the ALERT pin low is not persistent). The LT3074 successfully transmits its address during a PMBus ARA. The BIAS power is removed from the device. THE LT3074 does not support the masking of faults and warnings. If fault reporting for certain parameters is not needed, make sure to set the limits for the respective parameters beyond the normal operating range in the application. Regardless of the limits set, care must always be exercised to ensure the maximum operating ratings for STATUS_WORD 15 VOUT 14 IOUT 13 INPUT 12 MFR_SPECIFIC 11 10 9 8 STATUS_BYTE 7 6 5 4 IOUT_OC 3 READS 0 READS 0 READS 0 READS 0 READS 0 OFF READS 0 READS 0 2 TEMPERATURE 1 CML 0 NONE OF THE ABOVE STATUS_VOUT 7 6 VOUT OV WARNING 5 VOUT UV WARNING 4 VOUT UV FAULT 3 2 1 0 READS 0 READS 0 READS 0 READS 0 READS 0 STATUS_IOUT 7 IOUT_OC FAULT 6 5 4 3 2 1 0 READS 0 READS 0 READS 0 READS 0 READS 0 READS 0 READS 0 STATUS_INPUT 7 6 VIN OV WARNING 5 VIN UV WARNING 4 3 2 1 0 STATUS_MFR_SPECIFIC 7 6 BIAS OV WARNING 5 BIAS UV WARNING 4 MIN IOUT WARNING 3 FAST START EVENT 2 1 0 READS 0 READS 0 READS 0 READS 0 READS 0 READS 0 READS 0 READS 0 READS 0 READS 0 STATUS_CML 7 INVALID/UNSUPPORTED COMMAND 6 INVALID/UNSUPPORTED DATA 5 PACKET ERROR CHECK FAILED 4 MEMORY FAULT DETECTED 3 2 1 OTHER COMMUNICATION FAULT 0 READS 0 READS 0 READS 0 STATUS_TEMPERATURE 7 OT FAULT 6 OT WARNING 5 4 3 2 1 0 READS 0 READS 0 READS 0 READS 0 READS 0 READS 0 DESCRIPTION GENERATES ALERT BIT CLEARABLE GENERAL FAULT OR WARNING EVENT YES YES STATUS DERIVED FROM OTHER BIT(S) INDIRECTLY NO |
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