Reg2 Ldo; Voltage References - Texas Instruments BQ769142 Manual

High accuracy battery monitor and protector for liion, li-polymer, and lifepo4 battery packs
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BQ769142
SLUSE91A – SEPTEMBER 2020 – REVISED FEBRUARY 2021
Typical values stated where T
to 80 V (unless otherwise noted)
PARAMETER
ΔV
Line regulation
O(LINE)
I
Regulator short-circuit current limit
SC
C
External capacitor REG1 to VSS
EXT
(1)
Operation with V
up to 80 V is supported when the charge pump is not in operation. Whenever the charge pump is in operation (in
BAT
5.5 V or 11 V mode), the maximum voltage on V
their maximum specified voltage.
(2)
Specified by design

7.13 REG2 LDO

Typical values stated where T
to 80 V (unless otherwise noted)
PARAMETER
V
Regulator voltage (nominal 1.8V setting)
REG2_1.8
V
Regulator voltage (nominal 2.5V setting)
REG2_2.5
V
Regulator voltage (nominal 3.0V setting)
REG2_3.0
V
Regulator voltage (nominal 3.3V setting)
REG2_3.3
V
Regulator voltage (nominal 5.0V setting)
REG2_5.0
ΔV
Regulator output over temperature
O(TEMP)
ΔV
Line regulation
O(LINE)
I
Regulator short-circuit current limit
SC
C
External capacitor REG2 to VSS
EXT
(1)
Operation with V
up to 80 V is supported when the charge pump is not in operation. Whenever the charge pump is in operation (in
BAT
5.5 V or 11 V mode), the maximum voltage on V
their maximum specified voltage.
(2)
Specified by design

7.14 Voltage References

Typical values stated where T
to 80 V (unless otherwise noted)
PARAMETER
VOLTAGE REFERENCE 1
V
Internal reference voltage
(REF1)
V
Internal reference voltage drift
(REF1DRIFT)
V
Internal reference voltage drift
(REF1DRIFT)
VOLTAGE REFERENCE 2
V
Internal reference voltage
(REF2)
V
Internal reference voltage drift
(REF2DRIFT)
V
Internal reference voltage drift
(REF2DRIFT)
(1)
Operation with V
up to 80 V is supported when the charge pump is not in operation. Whenever the charge pump is in operation (in
BAT
5.5 V or 11 V mode), the maximum voltage on V
their maximum specified voltage.
14
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= 25°C and V
= 59.2 V, min/max values stated where T
A
BAT
(1)
ΔV
REG1
5.5 V, I
REG1
from 5 V to 6 V, V
3.3 V setting
V
= 0 V
REG1
(2)
should be reduced to ensure the voltage on CP1, CHG, and DSG does not exceed
BAT
= 25°C and V
= 59.2 V, min/max values stated where T
A
BAT
(1)
V
REGIN
V
REGIN
V
REGIN
V
REGIN
V
REGIN
ΔV
REG2
mA, V
REGIN
nominal 3.3 V setting)
ΔV
REG2
5.5 V, I
REG2
from 5 V to 6 V, V
3.3 V setting
V
= 0 V
REG2
(2)
should be reduced to ensure the voltage on CP1, CHG, and DSG does not exceed
BAT
= 25°C and V
= 59.2 V, min/max values stated where T
A
BAT
(1)
(2)
T
= 25°C
A
(2) (4)
T
= -10°C to 60°C
A
(2) (4)
T
= -40°C to 85°C
A
(3)
T
= 25°C
A
(3) (4)
T
= -10°C to 60°C
A
(3) (4)
T
= -40°C to 85°C
A
should be reduced to ensure the voltage on CP1, CHG, and DSG does not exceed
BAT
Product Folder Links:
TEST CONDITIONS
vs (V
at 25°C, V
=
REG1
REGIN
= 20 mA), as V
varies
REGIN
set to nominal
REG1
TEST CONDITIONS
≥ 3.0 V, I
= 0 mA to 45 mA
REG2
≥ 3.5 V, I
= 0 mA to 45 mA
REG2
≥ 3.8 V, I
= 0 mA to 45 mA
REG2
≥ 4.1 V, I
= 0 mA to 45 mA
REG2
≥ 5.0 V, I
= 0 mA to 45 mA
REG2
vs (V
at 25°C, I
= 20
REG2
REG2
= 5.5 V, V
set to
REG2
vs (V
at 25°C, V
=
REG2
REGIN
= 20 mA), as V
varies
REGIN
set to nominal
REG2
TEST CONDITIONS
BQ769142
www.ti.com
= -40°C to 85°C and V
A
BAT
MIN
TYP
MAX
–1
1
47
80
1
= -40°C to 85°C and V
A
BAT
MIN
TYP
MAX
1.6
1.84
2
2.25
2.55
2.75
2.7
3.06
3.3
3.0
3.38
3.6
4.5
5.23
5.5
±0.25
–1
1
47
80
1
= -40°C to 85°C and V
A
BAT
MIN
TYP
MAX
1.210
1.212
1.214
±10
±10
1.23
1.24
1.25
±20
±50
Copyright © 2021 Texas Instruments Incorporated
= 4.7 V
UNIT
%
mA
µF
= 4.7 V
UNIT
V
V
V
V
V
%
%
mA
µF
= 4.7 V
UNIT
V
PPM/°C
PPM/°C
V
PPM/°C
PPM/°C

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