LTC3882_15 Datasheet, PDF (3/104 Pages) Linear Technology – Dual Output PolyPhase Step-Down DC/DC Voltage Mode Controller with Digital Power System Management

LTC3882
TABLE OF CONTENTS
MFR_RESET.................................................................70
PWM Configuration..........................................................71
FREQUENCY_SWITCH..................................................71
MFR_PWM_CONFIG_LTC3882....................................72
MFR_CHAN_CONFIG_LTC3882...................................73
MFR_PWM_MODE_LTC3882...................................... 74
Input Voltage and Limits...................................................75
VIN_ON........................................................................75
VIN_OFF.......................................................................75
VIN_OV_FAULT_LIMIT.................................................75
VIN_UV_WARN_LIMIT.................................................75
Output Voltage and Limits................................................76
VOUT_MODE................................................................76
VOUT_COMMAND........................................................76
MFR_VOUT_MAX.........................................................76
VOUT_MAX..................................................................77
MFR_VOUT_AVP..........................................................77
VOUT_MARGIN_HIGH..................................................77
VOUT_MARGIN_LOW..................................................77
VOUT_OV_FAULT_LIMIT..............................................77
VOUT_OV_WARN_LIMIT..............................................78
VOUT_UV_WARN_LIMIT..............................................78
VOUT_UV_FAULT_LIMIT..............................................78
Output Current and Limits................................................79
IOUT_CAL_GAIN..........................................................79
MFR_IOUT_CAL_GAIN_TC..........................................79
IOUT_OC_FAULT_LIMIT...............................................79
IOUT_OC_WARN_LIMIT...............................................79
Output Timing, Delays, and Ramping...............................80
MFR_RESTART_DELAY...............................................80
TON_DELAY.................................................................80
TON_RISE....................................................................80
TON_MAX_FAULT_LIMIT............................................81
VOUT_TRANSITION_RATE...........................................81
TOFF_DELAY................................................................81
TOFF_FALL...................................................................81
TOFF_MAX_WARN_LIMIT...........................................81
External Temperature and Limits......................................82
MFR_TEMP_1_GAIN.....................................................82
MFR_TEMP_1_OFFSET.................................................82
OT_FAULT_LIMIT.........................................................82
OT_WARN_LIMIT.........................................................82
UT_FAULT_LIMIT.........................................................83
Status Reporting...............................................................83
STATUS_BYTE.............................................................83
STATUS_WORD............................................................84
STATUS_VOUT.............................................................84
STATUS_IOUT..............................................................85
STATUS_INPUT............................................................85
STATUS_TEMPERATURE.............................................85
STATUS_CML...............................................................86
STATUS_MFR_SPECIFIC..............................................86
MFR_PADS_LTC3882..................................................87
MFR_COMMON............................................................87
Telemetry..........................................................................88
READ_VIN....................................................................88
CLEAR_FAULTS...........................................................88
MFR_VIN_PEAK...........................................................89
READ_VOUT.................................................................89
MFR_VOUT_PEAK........................................................89
READ_IOUT..................................................................89
MFR_IOUT_PEAK.........................................................89
READ_POUT.................................................................89
READ_TEMPERATURE_1.............................................90
MFR_TEMPERATURE_1_PEAK....................................90
READ_TEMPERATURE_2.............................................90
MFR_TEMPERATURE_2_PEAK...................................90
READ_DUTY_CYCLE....................................................90
READ_FREQUENCY......................................................90
MFR_CLEAR_PEAKS...................................................90
Fault Response and Communication.................................91
VIN_OV_FAULT_RESPONSE........................................91
VOUT_OV_FAULT_RESPONSE.....................................92
VOUT_UV_FAULT_RESPONSE.....................................92
IOUT_OC_FAULT_RESPONSE......................................93
OT_FAULT_RESPONSE.................................................94
UT_FAULT_RESPONSE................................................94
MFR_OT_FAULT_RESPONSE.......................................94
TON_MAX_FAULT_RESPONSE....................................95
MFR_RETRY_DELAY...................................................95
SMBALERT_MASK.......................................................96
MFR_GPIO_PROPAGATE_LTC3882.............................97
MFR_GPIO_RESPONSE...............................................97
EEPROM User Access.......................................................98
MFR_FAULT_LOG........................................................98
MFR_FAULT_LOG_CLEAR...........................................98
STORE_USER_ALL......................................................99
RESTORE_USER_ALL..................................................99
MFR_COMPARE_USER_ALL.......................................99
MFR_FAULT_LOG_STORE...........................................99
MFR_EE_xxxx..............................................................99
USER_DATA_0x...........................................................99
Unit Identification...........................................................100
MFR_ID...................................................................... 100
MFR_MODEL............................................................. 100
MFR_SERIAL............................................................. 100
Typical Applications.............................................101
Package Description............................................103
Typical Application..............................................104
Related Parts.....................................................104
3882f
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