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Typical values stated where T
to 80 V (unless otherwise noted)
PARAMETER
t
Bus free time STOP to START
BUF
2
(2)
t
I
C bus reset
RST
(3)
R
Pullup resistor
PULLUP
(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 characterization
7.28 Timing Requirements - I
Typical values stated where T
to 80 V (unless otherwise noted)
PARAMETER
f
Clock operating frequency
SCL
t
START condition hold time
HD:STA
t
Low period of the SCL clock
LOW
t
High period of the SCL clock
HIGH
t
Setup repeated START
SU:STA
t
Data hold time (SDA input)
HD:DAT
t
Data setup time (SDA input)
SU:DAT
(2)
t
Clock rise time
r
(2)
t
Clock fall time
f
t
Setup time STOP condition
SU:STO
t
Bus free time STOP to START
BUF
2
(2)
t
I
C bus reset
RST
(3)
R
Pullup resistor
PULLUP
(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 characterization
7.29 Timing Requirements - HDQ Interface
Typical values stated where T
to 80 V (unless otherwise noted)
PARAMETER
(2)
t
Break Time
B
t
Break Recovery Time
BR
(2)
t
Host Write 1 Time
HW1
(2)
t
Host Write 0 Time
HW0
t
Cycle Time, Host to device
CYCH
t
Cycle Time, device to Host
CYCD
t
Device Write 1 Time
DW1
t
Device Write 0 Time
DW0
Copyright © 2021 Texas Instruments Incorporated
= 25°C and V
= 59.2 V, min/max values stated where T
A
BAT
(1)
(2)
Bus interface is reset if SCL is detected
low for this duration
Pullup voltage rail ≤ 5 V
should be reduced to ensure the voltage on CP1, CHG, and DSG does not exceed
BAT
2
C Interface, 400kHz Mode
= 25°C and V
= 59.2 V, min/max values stated where T
A
BAT
(1)
(2)
SCL duty cycle = 50%
(2)
(2)
(2)
(2)
(2)
(2)
10% to 90%
90% to 10%
(2)
(2)
Bus interface is reset if SCL is detected
low for this duration
Pullup voltage rail ≤ 5 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)
(2)
Host drives HDQ
Host drives HDQ
(2)
Device drives HDQ
(2)
Device drives HDQ
(2)
Device drives HDQ
(2)
Device drives HDQ
Product Folder Links:
SLUSE13A – JANUARY 2020 – REVISED MAY 2021
TEST CONDITIONS
TEST CONDITIONS
TEST CONDITIONS
BQ76952
BQ76952
= -40°C to 85°C and V
A
BAT
MIN
TYP
MAX
4.7
1.9
2.1
1.5
= -40°C to 85°C and V
A
BAT
MIN
TYP
MAX
400
0.6
1.3
600
600
0
100
300
300
0.6
1.3
1.9
2.1
1.5
= -40°C to 85°C and V
A
BAT
MIN
TYP
MAX
190
40
0.5
50
86
145
190
190
205
250
32
50
80
145
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= 4.7 V
UNIT
µs
s
kΩ
= 4.7 V
UNIT
kHz
µs
µs
ns
ns
ns
ns
ns
ns
µs
µs
s
kΩ
= 4.7 V
UNIT
µs
µs
µs
µs
µs
µs
µs
µs
23
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