LTC3350_15 Datasheet, PDF (33/46 Pages) Linear Technology – High Current Supercapacitor Backup Controller and System Monitor

LTC3350
Register Descriptions
clr_alarms (0x00)
Clear Alarms Register: This register is used to clear alarms caused by exceeding a programmed limit. Writing a one to any bit in this register will cause its
respective alarm to be cleared. The one written to this register is automatically cleared when its respective alarm is cleared.
BIT(S) BIT NAME
DESCRIPTION
0
clr_cap_uv
Clear capacitor undervoltage alarm
1
clr_cap_ov
Clear capacitor overvoltage alarm
2
clr_gpi_uv
Clear GPI undervoltage alarm
3
clr_gpi_ov
Clear GPI overvoltage alarm
4
clr_vin_uv
5
clr_vin_ov
6
clr_vcap_uv
7
clr_vcap_ov
8
clr_vout_uv
9
clr_vout_ov
10
clr_iin_oc
Clear V_IN undervoltage alarm
Clear V_IN overvoltage alarm
Clear V_CAP undervoltage alarm
Clear V_CAP overvoltage alarm
Clear V_OUT undervoltage alarm
Clear V_OUT overvoltage alarm
Clear input overcurrent alarm
11
clr_ichg_uc
Clear charge undercurrent alarm
12
clr_dtemp_cold
Clear die temperature cold alarm
13
clr_dtemp_hot
Clear die temperature hot alarm
14
clr_esr_hi
Clear ESR high alarm
15
clr_cap_lo
Clear capacitance low alarm
msk_alarms (0x01)
Mask Alarms Register: Writing a one to any bit in the Mask Alarms Register enables its respective alarm to trigger an SMBALERT.
BIT(S) BIT NAME
DESCRIPTION
0
msk_cap_uv
Enable capacitor undervoltage alarm
1
msk_cap_ov
Enable capacitor overvoltage alarm
2
msk_gpi_uv
Enable GPI undervoltage alarm
3
msk_gpi_ov
Enable GPI overvoltage alarm
4
msk_vin_uv
5
msk_vin_ov
6
msk_vcap_uv
7
msk_vcap_ov
8
msk_vout_uv
9
msk_vout_ov
10
msk_iin_oc
Enable V_IN undervoltage alarm
Enable V_IN overvoltage alarm
Enable V_CAP undervoltage alarm
Enable V_CAP overvoltage alarm
Enable V_OUT undervoltage alarm
Enable V_OUT overvoltage alarm
Enable input overcurrent alarm
11
msk_ichg_uc
Enable charge undercurrent alarm
12
msk_dtemp_cold
Enable die temperature cold alarm
13
msk_dtemp_hot
Enable die temperature hot alarm
14
msk_esr_hi
Enable ESR high alarm
15
msk_cap_lo
Enable capacitance low alarm
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