BQ27425-G2_14 Datasheet, PDF (4/35 Pages) Texas Instruments – System-Side Impedance Track™ Fuel Gauge With Integrated Sense Resistor

bq27425-G2
SLUSB23A – OCTOBER 2012 – REVISED FEBRUARY 2013
ELECTRICAL SPECIFICATIONS
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ABSOLUTE MAXIMUM RATINGS
over operating free-air temperature range (unless otherwise noted)⁽¹⁾
PARAMETER
V_REGIN
V_CC
V_IOD
V_BAT
V_I
T_A
T_stg
Regulator input range
Supply voltage range
Open-drain I/O pins (SDA, SCL, GPOUT)
BAT input pin
Input voltage range to all other pins (SRX, BIN)
Operating free-air temperature range
Storage temperature range
VALUE
–0.3 to 6.0
–0.3 to 2.75
–0.3 to 6.0
–0.3 to 6.0
–0.3 to V_CC + 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 = 25°C and V_REGIN = V_BAT = 3.6V (unless otherwise noted)
PARAMETER
TEST CONDITIONS
V_REGIN
Supply voltage
No operating restrictions
No NVM writes
C_REGIN
C_LDO25
I_CC
I_SLP
I_HIB
I_SHD
V_OL(OD)
External input capacitor for internal
LDO between REGIN and V_SS
External output capacitor for internal
LDO between V_CC and V_SS
NORMAL operating-mode current⁽¹⁾
SLEEP mode operating mode
current ⁽¹⁾
HIBERNATE operating-mode
current ⁽¹⁾
SHUTDOWN mode current⁽¹⁾
Output low voltage on open-drain
pins (SCL, SDA, GPOUT)
Nominal capacitor values specified.
Recommend a 5% ceramic X5R type
capacitor located close to the device.
Fuel gauge in NORMAL mode.
I_LOAD > Sleep Current
Fuel gauge in SLEEP mode.
I_LOAD < Sleep Current
Fuel gauge in HIBERNATE mode.
I_LOAD < Hibernate Current
Fuel gauge in SHUTDOWN mode.
CE Pin < V_IL(CE) max.
I_OL = 1 mA
V_OH(OD)
Output high voltage on open-drain
pins (SDA, SCL, GPOUT)
External pullup resistor connected to V_CC
V_IL
Input low voltage, all digital pins
Input high voltage (SDA, SCL)
V_IH
Input high voltage (BIN)
V_A2
Input voltage range (BAT)
V_A3
Input voltage range (SRX) ⁽¹⁾⁽²⁾
I_lkg
t_PUCD
Input leakage current (I/O pins)
Power-up communication delay
MIN
TYP
2.8
2.45
0.1
0.47
1
118
23
8
1
V_CC – 0.5
1.2
1.2
V_SS –
0.125
V_SS –
0.040
250
(1) Specified by design. Not production tested.
(2) Limited by I_SRX maximum recommend input current with some margin for the Integrated Sense Resistor tolerance
POWER-ON RESET
T_A = –40°C to 85°C, typical values at T_A = 25°C and V_REGIN = 3.6 V (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
V_IT+
Positive-going voltage on V_CC
(Regulator output)
1.98
2.20
V_HYS
Power-on reset hysteresis
43
115
MAX
4.5
2.8
UNIT
V
μF
μF
μA
μA
μA
μA
0.4
V
V
0.6
V
V
V
5
V
0.040
V
0.3
μA
ms
MAX UNIT
2.31 V
185 mV
4
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