Voltage References; Current Detector - Texas Instruments BQ77307 Instruction Manual

2-series to 7-series high accuracy battery primary or secondary protector for li-ion, li-polymer, lifepo4 (lfp), and lto battery packs
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BQ77307
SLUSF60 – DECEMBER 2023
6.7 REGOUT LDO (continued)
Typical values stated where T
to 38.5 V (unless otherwise noted)
PARAMETER
ΔV
Regulator output over temperature
O(TEMP)
(1)
ΔV
Line regulation
O(LINE)
I
Regulator short-circuit current limit
SC
C
External capacitor REGOUT to VSS
EXT
(1)
Specified by a combination of characterization and production test.
(2)
Specified by design

6.8 Voltage References

Typical values stated where T
to 38.5 V (unless otherwise noted)
PARAMETER
VOLTAGE REFERENCE 1
V
Internal reference voltage
(REF1)
V
Internal reference voltage drift
(REF1DRIFT)
VOLTAGE REFERENCE 2
V
Internal reference voltage
(REF2)
V
Internal reference voltage drift
(REF2DRIFT)
(1)
V
is used for the cell voltage and thermistor threshold voltage detection subsystem.
(REF1)
(2)
V
is used for the LDOs and current protection subsystem
(REF2)

6.9 Current Detector

Typical values stated where T
to 38.5 V (unless otherwise noted)
PARAMETER
Current detection voltage threshold
V
(V
– V
), setting = 1, positive
CUR_DET_THR
SRP
SRN
threshold (charging current)
Current detection voltage threshold
V
(V
– V
), setting = 2, positive
CUR_DET_THR
SRP
SRN
threshold (charging current)
Current detection voltage threshold
V
(V
– V
), setting = 3, positive
CUR_DET_THR
SRP
SRN
threshold (charging current)
Current detection voltage threshold
V
(V
– V
), setting = 4, positive
CUR_DET_THR
SRP
SRN
threshold (charging current)
Current detection voltage threshold
V
(V
– V
), setting = 5, positive
CUR_DET_THR
SRP
SRN
threshold (charging current)
Current detection voltage threshold
V
(V
– V
), setting = 6, positive
CUR_DET_THR
SRP
SRN
threshold (charging current)
8
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= 25°C and V
= 25.9 V, min/max values stated where T
A
BAT
ΔV
REGOUT
I
REGOUT
V
REGSRC
nominal 3.3 V setting)
ΔV
REGOUT
= 3.0 V, V
mA), as V
38.5 V, V
setting
V
REGOUT
(2)
= 25°C and V
= 25.9 V, min/max values stated where T
A
BAT
(1)
T
= 25°C
A
T
= -40°C to 110°C
A
(1)
(2)
T
= 25°C
A
(2)
T
= -40°C to 110°C
A
= 25°C and V
= 25.9 V, min/max values stated where T
A
BAT
T
= -20°C to 65°C. Measured using
A
averaged data to remove effects of noise.
(1)
T
= -20°C to 65°C. Measured using
A
averaged data to remove effects of noise.
(1)
T
= -20°C to 65°C. Measured using
A
averaged data to remove effects of noise.
(1)
T
= -20°C to 65°C. Measured using
A
averaged data to remove effects of noise.
(1)
T
= -20°C to 65°C. Measured using
A
averaged data to remove effects of noise.
(1)
T
= -20°C to 65°C. Measured using
A
averaged data to remove effects of noise.
(1)
Product Folder Links:
TEST CONDITIONS
vs (V
at 25°C,
REGOUT
= 20 mA, V
= 3.0 V,
BAT
= 5.5 V, V
set to
REGOUT
vs (V
at 25°C, V
REGOUT
BAT
= 4.2 V, I
= 5
REGSRC
REGOUT
varies from 4.2 V to
REGSRC
set to nominal 3.3 V
REGOUT
= 0 V
TEST CONDITIONS
TEST CONDITIONS
BQ77307
= -40°C to 110°C and V
A
MIN
TYP
MAX
±0.015%
–1%
1%
23
50
1
= -40°C to 110°C and V
A
MIN
TYP
MAX
1.1955
1.1962
1.1969
±29
1.226
1.227
1.229
±52
= -40°C to 110°C and V
A
MIN
TYP
MAX
186
271
355
670
794
921
1145
1317
1503
1594
1838
2089
2056
2364
2676
2516
2890
3276
Copyright © 2023 Texas Instruments Incorporated
www.ti.com
= 3 V
BAT
UNIT
per ℃
mA
µF
= 3 V
BAT
UNIT
V
PPM/°C
V
PPM/°C
= 3 V
BAT
UNIT
µV
µV
µV
µV
µV
µV

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