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BQ769142
SLUSE91A – SEPTEMBER 2020 – REVISED FEBRUARY 2021
7.7 LD Pin
Typical values stated where T
to 80 V (unless otherwise noted)
PARAMETER
Internal pullup current from BAT pin to LD
I
(PULLUP)
pin, used for load detect functionality
Internal pulldown resistance on LD pin in
R
PD
SHUTDOWN mode
(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.
7.8 Precharge (PCHG) and Predischarge (PDSG) FET Drive
Typical values stated where T
to 80 V (unless otherwise noted)
PARAMETER
V
Output voltage, PCHG on
(PCHG_ON)
V
Output voltage, PCHG on
(PCHG_ON)
V
Output voltage, PDSG on
(PDSG_ON)
V
Output voltage, PDSG on
(PDSG_ON)
Current sink capability, PCHG and
I
(PULLDOWN)
PDSG
(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.
7.9 FUSE Pin Functionality
Typical values stated where T
to 80 V (unless otherwise noted)
PARAMETER
V
Output voltage high (when driving fuse)
(OH)
V
Output voltage high (when driving fuse)
(OH)
V
High-level input (for fuse detection)
(IH)
V
Low-level input (for fuse detection)
(IL)
t
Output rise time (when driving fuse)
(RISE)
(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.
7.10 REG18 LDO
Typical values stated where T
to 80 V (unless otherwise noted)
PARAMETER
C
External capacitor, REG18 to VSS
REG18
V
Regulator voltage
REG18
12
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= 25°C and V
= 59.2 V, min/max values stated where T
A
BAT
(1)
V
≥ 4.7 V, V
BAT
V
≥ 4.7 V
BAT
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)
max(V
PACK
V
≥ 4.7 V
BAT
V
- V
PACK
≥ 4.7 V, V
max(V
, V
LD
V
- V
BAT
PDSG
V
LD
PCHG and PDSG enabled, V
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
≥ 8 V, C
BAT
4.7 V ≤ V
BAT
Current into device pin must be limited to
maximum 2 mA
V
≥ 8 V, C
BAT
V
= 10% to 90% of final settled
(OH)
voltage
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)
Product Folder Links:
TEST CONDITIONS
= VSS
LD
TEST CONDITIONS
, V
- V
, V
≥ 8 V,
BAT)
PCHG
PACK
, 4.7 V ≤ V
< 8 V, V
PCHG
PACK
BAT
> V
PACK
BAT
) - V
, V
≥ 8 V
BAT
PDSG
BAT
, 4.7 V ≤ V
< 8 V, V
≥
BAT
BAT
= 59.2 V
BAT
TEST CONDITIONS
= 1 nF, 5 kΩ load.
L
< 8 V, C
= 1 nF, 5 kΩ load.
L
= 1 nF, R
= 5 kΩ,
L
LOAD
TEST CONDITIONS
BQ769142
www.ti.com
= -40°C to 85°C and V
A
BAT
MIN
TYP
MAX
35
100
172
80
= -40°C to 85°C and V
A
BAT
MIN
TYP
MAX
7.5
8.4
9.7
V
–
PACK
V
PACK
0.5 V
7.47
8.4
9.7
V
–
BAT
V
BAT
0.5 V
30
= -40°C to 85°C and V
A
BAT
MIN
TYP
MAX
6
7
9
V
–
BAT
1.75
2
12
0.7
0.5
= -40°C to 85°C and V
A
BAT
MIN
TYP
MAX
1.8
2.2
22
1.6
1.8
2
Copyright © 2021 Texas Instruments Incorporated
= 4.7 V
UNIT
µA
kΩ
= 4.7 V
UNIT
V
V
V
V
µA
= 4.7 V
UNIT
V
V
V
V
µs
= 4.7 V
UNIT
µF
V
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