Texas Instruments BQ76942, Руководство пользователя

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Typical values stated where T
A
= 25°C and V
BAT
= 55.0 V, min/max values stated where T
A
= -40°C to 85°C and V
BAT
= 4.7 V
to 55 V (unless otherwise noted)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
C
BREG
External capacitor BREG to VSS
(3)
150 pF
(1) Supported output current is limited for V
STACK
< 5.5 V. V
REGIN
limited to 2.5 V below V
BAT
.
(2) Capacitance should be above 7 nF after consideration for aging and derating.
(3) Specified by design
7.12 REG1 LDO
Typical values stated where T
A
= 25°C and V
BAT
= 55.0 V, min/max values stated where T
A
= -40°C to 85°C and V
BAT
= 4.7 V
to 55 V (unless otherwise noted)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
V
REG1_1.8
Regulator voltage (nominal 1.8V setting) V
REGIN
≥ 3.0 V, I
REG1
= 0 mA to 45 mA 1.6 1.84 2 V
V
REG1_2.5
Regulator voltage (nominal 2.5V setting) V
REGIN
≥ 3.5 V, I
REG1
= 0 mA to 45 mA 2.25 2.55 2.75 V
V
REG1_3.0
Regulator voltage (nominal 3.0V setting) V
REGIN
≥ 3.8 V, I
REG1
= 0 mA to 45 mA 2.7 3.05 3.3 V
V
REG1_3.3
Regulator voltage (nominal 3.3V setting) V
REGIN
≥ 4.1 V, I
REG1
= 0 mA to 45 mA 3.0 3.36 3.6 V
V
REG1_5.0
Regulator voltage (nominal 5.0V setting) V
REGIN
≥ 5.0 V, I
REG1
= 0 mA to 45 mA 4.5 5.19 5.5 V
ΔV
O(TEMP)
Regulator output over temperature
ΔV
REG1
vs (V
REG1
at 25°C, I
REG1
=
20 mA, V
REGIN
= 5.5 V, V
REG1
set to
nominal 3.3 V setting)
±0.25 %
ΔV
O(LINE)
Line regulation
ΔV
REG1
vs (V
REG1
at 25°C, V
REGIN
=
5.5 V, I
REG1
= 20 mA), as V
REGIN
varies
from 5 V to 6 V, V
REG1
set to nominal
3.3 V setting
–1 1 %
I
SC
Regulator short-circuit current limit V
REG1
= 0 V 47 80 mA
C
EXT
External capacitor REG1 to VSS
(1)
1 µF
(1) Specified by design
7.13 REG2 LDO
Typical values stated where T
A
= 25°C and V
BAT
= 55.0 V, min/max values stated where T
A
= -40°C to 85°C and V
BAT
= 4.7 V
to 55 V (unless otherwise noted)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
V
REG2_1.8
Regulator voltage (nominal 1.8V setting) V
REGIN
≥ 3.0 V, I
REG2
= 0 mA to 45 mA 1.6 1.84 2 V
V
REG2_2.5
Regulator voltage (nominal 2.5V setting) V
REGIN
≥ 3.5 V, I
REG2
= 0 mA to 45 mA 2.25 2.55 2.75 V
V
REG2_3.0
Regulator voltage (nominal 3.0V setting) V
REGIN
≥ 3.8 V, I
REG2
= 0 mA to 45 mA 2.7 3.06 3.3 V
V
REG2_3.3
Regulator voltage (nominal 3.3V setting) V
REGIN
≥ 4.1 V, I
REG2
= 0 mA to 45 mA 3.0 3.38 3.6 V
V
REG2_5.0
Regulator voltage (nominal 5.0V setting) V
REGIN
≥ 5.0 V, I
REG2
= 0 mA to 45 mA 4.5 5.23 5.5 V
ΔV
O(TEMP)
Regulator output over temperature
ΔV
REG2
vs (V
REG2
at 25°C, I
REG2
=
20 mA, V
REGIN
= 5.5 V, V
REG2
set to
nominal 3.3 V setting)
±0.25 %
ΔV
O(LINE)
Line regulation
ΔV
REG2
vs (V
REG2
at 25°C, V
REGIN
=
5.5 V, I
REG2
= 20 mA), as V
REGIN
varies
from 5 V to 6 V, V
REG2
set to nominal
3.3 V setting
–1 1 %
I
SC
Regulator short-circuit current limit V
REG2
= 0 V 47 80 mA
C
EXT
External capacitor REG2 to VSS
(1)
1 µF
(1) Specified by design
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BQ76942
SLUSE14B – DECEMBER 2020 – REVISED DECEMBER 2021
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