Texas Instruments BQ769142, Manual

Page: 13 / 80

Typical values stated where T
A
= 25°C and V
BAT
= 59.2 V, min/max values stated where T
A
= -40°C to 85°C and V
BAT
= 4.7 V
to 80 V (unless otherwise noted)
(1)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
ΔV
O(TEMP)
Regulator output over temperature
ΔV
REG18
vs (V
REG18
at 25°C), I
REG18
= 1
mA, V
BAT
= 55 V
±0.15 %
ΔV
O(LINE)
Line regulation
ΔV
REG18
vs (V
REG18
at 25°C, V
BAT
= 55
V), I
REG18
= 1 mA, as V
BAT
varies across
specified range
–0.6 0.5 %
ΔV
O(LOAD)
Load regulation
ΔV
REG18
vs (V
REG18
, V
BAT
= 55 V), I
REG18
= 0 mA to 1 mA, at 25°C
–1.5 1.5 %
I
SC
Regulator short-circuit current limit V
REG18
= 0 V 3 14 mA
(1) Operation with V
BAT
up to 80 V is supported when the charge pump is not in operation. Whenever the charge pump is in operation (in
5.5 V or 11 V mode), the maximum voltage on V
BAT
should be reduced to ensure the voltage on CP1, CHG, and DSG does not exceed
their maximum specified voltage.
(2) Specified by design
7.11 REG0 Pre-regulator
Typical values stated where T
A
= 25°C and V
BAT
= 59.2 V, min/max values stated where T
A
= -40°C to 85°C and V
BAT
= 4.7 V
to 80 V (unless otherwise noted)
(1)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
V
BREG_HDRM
Pre-regulator control voltage
headroom ( min(V
BAT
- V
BREG
) )
(4)
V
BAT
≥ 4.7 V 1.5 1.91 V
V
REGIN_INT
Pre-regulator voltage, when
generated using BREG V
BAT
> 8 V, although specific requirement
depends on external device selected
5 5.5 5.8 V
V
REGIN_EXT
Pre-regulator voltage when using
externally supplied REGIN
(4)
See requirements based on settings of
REG1 and REG2
5.5 V
ΔV
O(TEMP)
Regulator output over temperature
ΔV
REGIN
vs V
REGIN
at 25°C, I
REGIN
= 50
mA, V
BAT
> 8 V
±0.05 %
I
Max
Maximum current driven out from
BREG
(4)
Under short circuit conditions (V
REGIN
= 0
V)
2.5 3.33 mA
C
EXT
External capacitor REGIN to VSS
(3)
(4)
15 22 27 nF
C
BREG
External capacitor BREG to VSS
(4)
150 pF
(1) Operation with V
BAT
up to 80 V is supported when the charge pump is not in operation. Whenever the charge pump is in operation (in
5.5 V or 11 V mode), the maximum voltage on V
BAT
should be reduced to ensure the voltage on CP1, CHG, and DSG does not exceed
their maximum specified voltage.
(2) Supported output current is limited for V
STACK
< 5.5 V. V
REGIN
limited to ~2.5 V below V
BAT
.
(3) Capacitance should be above 7 nF after consideration for aging and derating.
(4) Specified by design
7.12 REG1 LDO
Typical values stated where T
A
= 25°C and V
BAT
= 59.2 V, min/max values stated where T
A
= -40°C to 85°C and V
BAT
= 4.7 V
to 80 V (unless otherwise noted)
(1)
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 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 %
www.ti.com
BQ769142
SLUSE91A – SEPTEMBER 2020 – REVISED FEBRUARY 2021
Copyright © 2021 Texas Instruments Incorporated Submit Document Feedback 13
Product Folder Links: BQ769142