LTC3350_15 Datasheet, PDF (35/46 Pages) Linear Technology – High Current Supercapacitor Backup Controller and System Monitor

LTC3350
Register Descriptions
vin_uv_lvl (0x0B)
2.21mV per LSB
V_IN Undervoltage Level: This is an alarm threshold for the input voltage. If enabled, the voltage falling below this level will trigger an alarm and an
SMBALERT.
vin_ov_lvl (0x0C)
2.21mV per LSB
V_IN Overvoltage Level: This is an alarm threshold for the input voltage. If enabled, the voltage rising above this level will trigger an alarm and an
SMBALERT.
vcap_uv_lvl (0x0D)
1.476mV per LSB
V_CAP Undervoltage Level: This is an alarm threshold for the capacitor stack voltage. If enabled, the voltage falling below this level will trigger an alarm and
an SMBALERT.
vcap_ov_lvl (0x0E)
1.476mV per LSB
V_CAP Overvoltage Level: This is an alarm threshold for the capacitor stack voltage. If enabled, the voltage rising above this level will trigger an alarm and
an SMBALERT.
vout_uv_lvl (0x0F)
2.21mV per LSB
V_OUT Undervoltage Level: This is an alarm threshold for the output voltage. If enabled, the voltage falling below this level will trigger an alarm and an
SMBALERT.
vout_ov_lvl (0x10)
2.21mV per LSB
V_OUT Overvoltage Level: This is an alarm threshold for the output voltage. If enabled, the voltage rising above this level will trigger an alarm and an
SMBALERT.
iin_oc_lvl (0x11)
1.983µV/R_SNSI per LSB
Input Overcurrent Level: This is an alarm threshold for the input current. If enabled, the current rising above this level will trigger an alarm and an
SMBALERT.
ichg_uc_lvl (0x12)
1.983µV/R_SNSC per LSB
Charge Undercurrent Level: This is an alarm threshold for the charge current. If enabled, the current falling below this level will trigger an alarm and an
SMBALERT.
dtemp_cold_lvl (0x13)
Temperature = 0.028°C per LSB – 251.4°C
Die Temperature Cold Level: This is an alarm threshold for the die temperature. If enabled, the die temperature falling below this level will trigger an alarm
and an SMBALERT.
dtemp_hot_lvl (0x14)
Temperature = 0.028°C per LSB – 251.4°C
Die Temperature Hot Level: This is an alarm threshold for the die temperature. If enabled, the die temperature rising above this level will trigger an alarm
and an SMBALERT.
esr_hi_lvl (0x15)
R_SNSC/64 per LSB
ESR High Level: This is an alarm threshold for the measured stack ESR. If enabled, a measurement of stack ESR exceeding this level will trigger an alarm
and an SMBALERT.
cap_lo_lvl (0x16)
336µF • R_TST/R_T per LSB
Capacitance Low Level: This is an alarm threshold for the measured stack capacitance. If enabled, if the measured stack capacitance is less than this level
it will trigger an alarm and an SMBALERT. When ctl_cap_scale is set to one the constant is 3.36 • R_TST/R_T.
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