Table of Contents
Advertisement
www.ti.com
6.11 Current Wake Detector (continued)
Typical values stated where T
to 27.5 V (unless otherwise noted)
PARAMETER
Wakeup voltage threshold (V
V
V
), setting = 9, negative threshold
WAKE_THR
SRN
(discharging current)
Wakeup voltage threshold (V
V
– V
), setting = 10, negative
WAKE_THR
SRN
threshold (discharging current)
t
Measurement interval
WAKE
(1)
Specified by a combination of characterization and production test
6.12 Analog-to-Digital Converter
Typical values stated where T
to 27.5 V (unless otherwise noted)
PARAMETER
Input voltage range
V
(differential cell input
(ADC_IN_CELLS)
mode)
Input voltage ran ge
V
(ADCIN measurement
(ADC_IN)
mode)
Input voltage range
(external thermistor
V
(ADC_IN_TS)
measurement mode)
(2) (5)
Input voltage range
V
(divider measurement
(ADC_IN_DIV)
mode)
Differential cell offset
B
(ADC_OFF_CELL)
error
Differential cell offset
B
(ADC_OFF_DRIFT_CELL)
error drift
B
ADCIN offset error
(ADC_OFF)
B
Divider offset error
(ADC_OFF_DIV)
Gain of ADC TS pin
G
measurement using
(ADC_TS_REG18)
Vref = V
Gain of ADC TS pin
G
measurement using
(ADC_TS_ADCIN)
Vref = V
Raw gain of ADC cell
G
voltage measurement
(ADC_CELL_RAW)
(9)
Copyright © 2023 Texas Instruments Incorporated
= 25°C and V
= 18.5 V, min/max values stated where T
A
BAT
–
SRP
T
= -40°C to 110°C. Measured using
A
averaged data to remove effects of noise
(1)
SRP
T
= -40°C to 110°C. Measured using
A
averaged data to remove effects of noise
(1)
= 25°C and V
= 18.5 V, min/max values stated where T
A
BAT
TEST CONDITIONS
Internal reference (Vref = V
(2) (4)
Internal reference (Vref =
V
, Settings:Configuration:DA
REF1
Config[TSMODE] = 1), applicable to ADCIN
(2) (6)
measurements using the TS pin
Regulator reference (Vref =
V
, Settings:Configuration:DA
REG18
Config[TSMODE] = 0), applicable to external
thermistor measurement using the TS pin
Internal reference (Vref = V
to divider measurements using the VC5 pin
(2) (7)
relative to VSS.
16-bit, uncalibrated, with VC5 - VC4A = 0 V,
VC4A = 27 V, using raw ADC codes
16-bit, uncalibrated, with VC5 - VC4A = 0 V,
VC4A = 27 V, using raw ADC codes, over
-20°C to +65°C
(3)
16-bit, uncalibrated, with VC5 - VC4A = 0 V,
VC4A = 27 V, using raw ADC codes, over
-40°C to +110°C
16-bit, uncalibrated, using ADCIN mode on
TS pin
16-bit, uncalibrated, using divider mode on
VC5
Reported digital code = G
V
/ V
. 16-bit, uncalibrated, using TS
TS
REG18
(9)
pin, input range from 0.1 V to 1.8 V.
REG18
Reported digital code = G
V
. 16-bit, uncalibrated, using TS pin, input
TS
(9)
range from 0.1 V to 1.8 V.
REF1
Gain measured 16-bit, over input voltage
range 1.0 V to 5.0 V, differential cell input
mode on VC5 - VC4A, uncalibrated, using
raw ADC codes.
Product Folder Links:
TEST CONDITIONS
)
REF1
), applicable
REF1
×
(ADC_TS_REG18)
×
(ADC_TS_ADCIN)
BQ76905
SLUSE97 – NOVEMBER 2023
= -40°C to 110°C and V
A
MIN
TYP
MAX
-5067
-4521
-3918
-5580
-5011
-4415
2.44
= -40°C to 110°C and V
A
MIN
TYP
MAX
–0.2
5.5
–0.2
1.8
–0.2
1.8
2.0
27.5
2.4
-0.26
0.26 LSB/°C
-0.41
0.41 LSB/°C
-0.5
-3.7
19083
19405
19750
15768
16027
16261 LSB/V
5458
5479
5502 LSB/V
Submit Document Feedback
BQ76905
= 3 V
BAT
UNIT
µV
µV
ms
= 3 V
BAT
UNIT
V
V
V
V
(4)
LSB
(4)
(4)
(6)
LSB
(7)
LSB
(5)
N/A
(6)
(4)
13
Advertisement
Table of Contents
