Texas Instruments BQ76942, Manual

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7.1 Absolute Maximum Ratings (continued)
over operating free-air temperature range (unless otherwise noted)
(1)
DESCRIPTION PINS MIN MAX UNIT
Input voltage range, V
IN
VC1
maximum of
VSS–0.3 and
VC0–0.3
VSS+85 V
Input voltage range, V
IN
VC0 VSS–0.3 VSS+6 V
Output voltage range, V
O
CP1 V
BAT
–0.3
the minimum
of VSS+85 or
V
BAT
+15
V
Output voltage range, V
O
CHG VSS–0.3 VSS+85 V
Output voltage range, V
O
DSG VSS–0.3 VSS+85 V
Output voltage range, V
O
REG1, REG2, TS2 (for wakeup function), ALERT,
CFETOFF, DFETOFF, HDQ, DCHG, DDSG, when
configured to drive a digital output
VSS–0.3 VSS+6 V
Output voltage range, V
O
REG18 VSS–0.3 VSS+2 V
Maximum cell balancing current
through a single cell
VC0 – VC10 100 mA
Maximum VSS current, I
SS
75 mA
Functional temperature, T
FUNC
–40 85 °C
Junction temperature, T
J
–55 150 °C
Storage temperature, T
STG
–55 150 °C
(1) Operation outside the Absolute Maximum Ratings may cause permanent device damage. Absolute Maximum Ratings do not imply
functional operation of the device at these or any other conditions beyond those listed under Recommended Operating Conditions . If
outside the Recommended Operating Conditions but within the Absolute Maximum Ratings , the device may not be fully functional, and
this may affect device reliability, functionality, performance, and shorten the device lifetime.
(2) The current allowed to flow into the FUSE pin must be limited (such as by using external series resistance) to 2 mA or less.
(3) When the ALERT, HDQ, CFETOFF, DFETOFF, DCHG, or DDSG pins are selected for thermistor input or general purpose ADC–input,
their voltage is limited to V
REG18
+ 0.3 V. These pins can accept up to 6 V when configured for other uses, such as a digital input.
7.2 ESD Ratings
VALUE UNIT
V
(ESD)
Electrostatic discharge
Human body model (HBM), per ANSI/ESDA/
JEDEC JS-001, all pins
(1)
±1000 V
V
(ESD)
Electrostatic discharge
Charged device model (CDM), per ANSI/ESDA/
JEDEC JS-002, all pins
(2)
±250 V
(1) JEDEC document JEP155 states that 500-V HBM allows safe manufacturing with a standard ESD control process.
(2) JEDEC document JEP157 states that 250-V CDM allows safe manufacturing with a standard ESD control process.
7.3 Recommended Operating Conditions
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
BAT
Supply voltage
Voltage on BAT pin (normal
operation)
4.7 55 V
V
BAT
Supply voltage
(3)
Voltage on BAT pin (OTP
programming)
10 12 V
T
OTP
OTP programming
temperature
(3)
–40 45 °C
V
PORA
Power-on reset Rising threshold on BAT 3 4 V
V
PORA_HYS
Power-on reset hysteresis
Device shuts down when BAT <
V
PORA
- V
PORA_HYS
180 mV
BQ76942
SLUSE14B – DECEMBER 2020 – REVISED DECEMBER 2021
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