LTC4015_15 Datasheet, PDF (58/76 Pages) Linear Technology – Multichemistry Buck Battery Charger Controller with Digital Telemetry System

LTC4015
DETAILED Register Descriptions
EN_LIMIT_ALERTS (Sub-Address 0x0D, Bits 15:0, R/W)
This register consists of individual limit alert enable bits. These bits enable monitoring and notification of limit excursions
via SMBALERT and the LIMIT_ALERTS (0x36) register. See the section Programmable Alerts and Interrupt Controller
for more information.
en_meas_sys_valid_alert (Sub-Address 0x0D, Bit 15, R/W)
To achieve high measurement accuracy, the measurement system in the LTC4015 has a nominal warm up time of
approximately 12ms. Setting this alert enable bit causes an SMBALERT when the measurement system indicates
its results are valid. Note that the LTC4015 switching charger will not operate until the measurement system warm
up period has passed, regardless of the state of en_meas_sys_valid_alert.
en_qcount_lo_alert (Sub-Address 0x0D, Bit 13, R/W)
Setting this enable bit causes an SMBALERT when QCOUNT has fallen below QCOUNT_LO_ALERT_LIMIT. qcount_
lo_alert is set to 1 by the LTC4015 if the alert occurs.
en_qcount_hi_alert (Sub-Address 0x0D, Bit 12, R/W)
Setting this enable bit causes an SMBALERT when QCOUNT has exceeded QCOUNT_HI_ALERT_LIMIT. qcount_hi_alert
is set to 1 by the LTC4015 if the alert occurs.
en_vbat_lo_alert (Sub-Address 0x0D, Bit 11, R/W)
Setting this enable bit causes an SMBALERT when VBAT has fallen below VBAT_LO_ALERT_LIMIT. vbat_lo_alert
is set to 1 by the LTC4015 if the alert occurs.
en_vbat_hi_alert (Sub-Address 0x0D, Bit 10, R/W)
Setting this enable bit causes an SMBALERT when VBAT has exceeded VBAT_HI_ALERT_LIMIT. vbat_hi_alert is
set to 1 by the LTC4015 if the alert occurs.
en_vin_lo_alert (Sub-Address 0x0D, Bit 9, R/W)
Setting this enable bit causes an SMBALERT when VIN has fallen below VIN_LO_ALERT_LIMIT. vin_lo_alert is set
to 1 by the LTC4015 if the alert occurs.
en_vin_hi_alert (Sub-Address 0x0D, Bit 8, R/W)
Setting this enable bit causes an SMBALERT when VIN has exceeded VIN_HI_ALERT_LIMIT. vin_hi_alert is set to
1 by the LTC4015 if the alert occurs.
en_vsys_lo_alert (Sub-Address 0x0D, Bit 7, R/W)
Setting this enable bit causes an SMBALERT when VSYS has fallen below VSYS_LO_ALERT_LIMIT. vsys_lo_alert
is set to 1 by the LTC4015 if the alert occurs.
en_vsys_hi_alert (Sub-Address 0x0D, Bit 6, R/W)
Setting this enable bit causes an SMBALERT when VSYS has exceeded VSYS_HI_ALERT_LIMIT. vsys_hi_alert is
set to 1 by the LTC4015 if the alert occurs.
en_iin_hi_alert (Sub-Address 0x0D, Bit 5, R/W)
Setting this enable bit causes an SMBALERT when IIN has exceeded IIN_HI_ALERT_LIMIT. iin_hi_alert is set to 1
by the LTC4015 if the alert occurs.
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For more information www.linear.com/LTC4015