Table of Contents
Advertisement
www.ti.com
Typical values stated where T
to 80 V (unless otherwise noted)
PARAMETER
Internal pullup
R
resistance change
(TS_PU_DRIFT)
over temperature
(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)
The internal pullup resistance includes only the resistance between the REG18 pin and the point where the voltage is sensed by the
ADC.
(3)
The internal pad resistance includes the resistance between the point where the voltage is sensed by the ADC and the pin where an
external thermistor is attached (which includes the TS1, TS2, TS3, ALERT, CFETOFF, DFETOFF, HDQ, DCHG, and DDSG pins)
7.24 Internal Oscillators
Typical values stated where T
to 80 V (unless otherwise noted)
PARAMETER
High-frequency Oscillator
f
Operating frequency
HFO
(3)
f
Frequency error
HFO(ERR)
(2)
f
Start-up time
HFO(SU)
Low-frequency Oscillator
f
Operating frequency
LFO
(3)
f
Frequency error
LFO(ERR)
f
Failure detection frequency
LFO(FAIL)
(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
(3)
Specified by a combination of design and production test
Copyright © 2021 Texas Instruments Incorporated
= 25°C and V
= 59.2 V, min/max values stated where T
A
BAT
(1)
TEST CONDITIONS
Change over -40°C/+85°C vs value at 25°C
for nominal 18-kΩ
Change over -40°C/+85°C vs value at 25°C
for nominal 180-kΩ
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)
T
= -40°C to +85°C, includes frequency
A
drift
T
= -40°C to +85°C, at power-up from
A
SHUTDOWN or exiting DEEPSLEEP
mode, oscillator frequency within ±3% of
nominal
T
= -40°C to +85°C, cases other than
A
power-up from SHUTDOWN or exiting
DEEPSLEEP mode, oscillator frequency
within ±3% of nominal
Full-speed setting
Low speed setting
Full-speed setting, T
includes frequency drift
Full-speed setting, T
includes frequency drift
Detects oscillator failure if the LFO
frequency falls below this level.
should be reduced to ensure the voltage on CP1, CHG, and DSG does not exceed
BAT
Product Folder Links:
SLUSE13A – JANUARY 2020 – REVISED MAY 2021
TEST CONDITIONS
= -10°C to +60°C,
A
= -40°C to +85°C,
A
BQ76952
BQ76952
= -40°C to 85°C and V
A
BAT
MIN
TYP
MAX
±200
±2000
= -40°C to 85°C and V
A
BAT
MIN
TYP
MAX
16.78
–4.0
±0.25
4.0
4.3
135
262.144
32.768
–1.5
±0.25
1.5
–2.5
±0.25
2.5
8.5
12
18
Submit Document Feedback
= 4.7 V
UNIT
Ω
Ω
= 4.7 V
UNIT
MHz
%
ms
µs
kHz
kHz
%
%
kHz
19
Advertisement
Table of Contents
