BQ27421-G1 Datasheet, PDF (4/20 Pages) Texas Instruments – System-Side Impedance Track™ Fuel Gauge With Integrated Sense Resistor

bq27421-G1
SLUSB85 – MAY 2013
ELECTRICAL SPECIFICATIONS
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ABSOLUTE MAXIMUM RATINGS
over operating free-air temperature range (unless otherwise noted)⁽¹⁾
PARAMETER
V_BAT
V_SRX
V_DD
V_IOD
V_IOPP
T_A
T_STG
BAT pin input voltage range
SRX pin input voltage range⁽¹⁾
VDD pin supply voltage range (LDO ouptut)
Open-drain I/O pins (SDA, SCL, GPOUT )
Push-Pull I/O pins (BIN )
Operating free-air temperature range
Storage temperature range
VALUE
–0.3 to 6.0
V_BAT ± 0.03
–0.3 to 2.0
–0.3 to 6.0
–0.3 to V_DD + 0.3
–40 to 85
–65 to 150
UNIT
V
V
V
V
V
°C
°C
(1) Stresses beyond those listed under "absolute maximum ratings" may cause permanent damage to the device. These are stress ratings
only, and functional operation of the device at these or any other conditions beyond those indicated under "recommended operating
conditions" is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
RECOMMENDED OPERATING CONDITIONS
T_A = 30°C and V_REGIN = V_BAT = 3.6V (unless otherwise noted)
PARAMETER
TEST CONDITIONS
C_BAT ⁽¹⁾
C_LDO18 ⁽¹⁾
V_PU ⁽¹⁾
External input capacitor for internal
LDO between BAT and V_SS
External output capacitor for internal
LDO between V_CC and V_SS
External pull-up voltage for open-
drain pins (SDA, SCL, GPOUT )
Nominal capacitor values specified.
Recommend a 5% ceramic X5R type
capacitor located close to the device.
(1) Specified by design. Not production tested.
MIN
TYP
MAX UNIT
0.1
μF
0.47
μF
1.62
3.6
V
SUPPLY CURRENT
T_A = 30°C and V_REGIN = V_BAT = 3.6V (unless otherwise noted)
PARAMETER
TEST CONDITIONS
I_CC ⁽¹⁾
I_SLP ⁽¹⁾
I_HIB ⁽¹⁾
NORMAL mode current
SLEEP mode current
HIBERNATE mode current
I_LOAD > Sleep Current ⁽²⁾
I_LOAD < Sleep Current ⁽²⁾
I_LOAD < Hibernate Current ⁽²⁾
I_SD ⁽¹⁾
SHUTDOWN mode current
Fuel gauge in host commanded
SHUTDOWN mode.
(LDO Regulator Output Disabled.)
(1) Specified by design. Not production tested.
(2) Wake Comparator Disabled.
MIN
TYP
MAX UNIT
93
μA
21
μA
9
μA
0.6
μA
4
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