LTC3350
32
3350fc
For more information
www.linear.com/LTC3350
regisTer Map
REGISTER
SUB ADDR
R/W
BITS
DESCRIPTION
DEFAULT
PAGE
clr_alarms
0x00
R/W
15:0
Clear alarms register
0x0000
33
msk_alarms
0x01
R/W
15:0
Enable/mask alarms register
0x0000
33
msk_mon_status
0x02
R/W
9:0
Enable/mask monitor status alerts
0x0000
34
cap_esr_per
0x04
R/W
15:0
Capacitance/ESR measurement period
0x0000
34
vcapfb_dac
0x05
R/W
3:0
V
CAP
voltage reference DAC setting
0xF
34
vshunt
0x06
R/W
15:0
Capacitor shunt voltage setting
0x3999
34
cap_uv_lvl
0x07
R/W
15:0
Capacitor undervoltage alarm level
0x0000
34
cap_ov_lvl
0x08
R/W
15:0
Capacitor overvoltage alarm level
0x0000
34
gpi_uv_lvl
0x09
R/W
15:0
GPI undervoltage alarm level
0x0000
34
gpi_ov_lvl
0x0A
R/W
15:0
GPI overvoltage alarm level
0x0000
34
vin_uv_lvl
0x0B
R/W
15:0
V
IN
undervoltage alarm level
0x0000
35
vin_ov_lvl
0x0C
R/W
15:0
V
IN
overvoltage alarm level
0x0000
35
vcap_uv_lvl
0x0D
R/W
15:0
V
CAP
undervoltage alarm level
0x0000
35
vcap_ov_lvl
0x0E
R/W
15:0
V
CAP
overvoltage alarm level
0x0000
35
vout_uv_lvl
0x0F
R/W
15:0
V
OUT
undervoltage alarm level
0x0000
35
vout_ov_lvl
0x10
R/W
15:0
V
OUT
overvoltage alarm level
0x0000
35
iin_oc_lvl
0x11
R/W
15:0
I
IN
overcurrent alarm level
0x0000
35
ichg_uc_lvl
0x12
R/W
15:0
I
CHG
undercurrent alarm level
0x0000
35
dtemp_cold_lvl
0x13
R/W
15:0
Die temperature cold alarm level
0x0000
35
dtemp_hot_lvl
0x14
R/W
15:0
Die temperature hot alarm level
0x0000
35
esr_hi_lvl
0x15
R/W
15:0
ESR high alarm level
0x0000
35
cap_lo_lvl
0x16
R/W
15:0
Capacitance low alarm level
0x0000
35
ctl_reg
0x17
R/W
3:0
Control register
0b0000
36
num_caps
0x1A
R
1:0
Number of capacitors configured
–
36
chrg_status
0x1B
R
11:0
Charger status register
–
36
mon_status
0x1C
R
9:0
Monitor status register
–
37
alarm_reg
0x1D
R
15:0
Active alarms register
0x0000
37
meas_cap
0x1E
R
15:0
Measured capacitance value
–
38
meas_esr
0x1F
R
15:0
Measured ESR value
–
38
meas_vcap1
0x20
R
15:0
Measured capacitor one voltage
–
38
meas_vcap2
0x21
R
15:0
Measured capacitor two voltage
–
38
meas_vcap3
0x22
R
15:0
Measured capacitor three voltage
–
38
meas_vcap4
0x23
R
15:0
Measured capacitor four voltage
–
38
meas_gpi
0x24
R
15:0
Measured GPI pin voltage
–
38
meas_vin
0x25
R
15:0
Measured V
IN
voltage
–
38
meas_vcap
0x26
R
15:0
Measured V
CAP
voltage
–
38
meas_vout
0x27
R
15:0
Measured V
OUT
voltage
–
38
meas_iin
0x28
R
15:0
Measured I
IN
current
–
38
meas_ichg
0x29
R
15:0
Measured I
CHG
current
–
38
meas_dtemp
0x2A
R
15:0
Measured die temperature
–
38
Registers at sub address 0x03, 0x18, 0x19, 0x2B-0xFF are unused.