BQ2014_15 Datasheet, PDF (17/27 Pages) Texas Instruments – Gas Gauge IC with External Charge Control

Not Recommended For New Designs
bq2014
DC Electrical Characteristics (TA = TOPR)
Symbol
Parameter
VCC
Supply voltage
VOS
VREF
RREF
Offset referred to VSR
Reference at 25°C
Reference at -40°C to +85°C
Reference input impedance
ICC
Normal operation
VSB
RSBmax
IDISP
ILCOM
RDQ
VSR
RSR
VIH
VIL
VIZ
VOLSL
Battery input
SB input impedance
DISP input leakage
LCOM input leakage
Internal pulldown
Sense resistor input
SR input impedance
Logic input high
Logic input low
Logic input Z
SEGX output low, low VCC
Minimum Typical Maximum
3.0
4.25
6.5
-
±50
±150
5.7
6.0
6.3
4.5
-
7.5
2.0
5.0
-
-
90
135
-
120
180
-
170
250
-
-
2.4
10
-
-
-
-
5
-0.2
-
0.2
500
-
-
-0.3
-
2.0
10
-
-
VCC - 0.2
-
-
-
-
VSS + 0.2
float
-
float
-
0.1
-
VOLSH SEGX output low, high VCC
-
0.4
VOHLCL LCOM output high, low VCC
VCC - 0.3
-
VOHLCH LCOM output high, high VCC VCC - 0.6
-
IIH
PROG1-5 input high current
-
1.2
IIL
PROG1-5 input low current
-
1.2
IOHLCOM LCOM source current
-33
-
IOLS
SEG_X sink current
-
-
IOL
Open-drain sink current
-
-
VOL
Open-drain output low
-
-
VIHDQ DQ input high
2.5
-
VILDQ DQ input low
-
-
RPROG
Soft pull-up or pull-down resis-
tor value (for programming)
-
-
RFLOAT Float state external impedance
-
5
Notes:
1. All voltages relative to VSS.
2. DONE must be pulled low for proper operation.
-
-
-
-
-
-
11.0
5.0
0.5
-
0.8
200
-
Unit
V
µV
V
V
MΩ
µA
µA
µA
V
MΩ
µA
µA
KΩ
V
MΩ
V
V
V
V
V
V
V
µA
µA
mA
mA
mA
V
V
V
Notes
VCC excursion from < 2.0V to ≥
3.0V initializes the unit.
DISP = VCC
IREF = 5µA
IREF = 5µA
VREF = 3V
VCC = 3.0V
V_CC = 4.25V
VCC = 6.5V
0 < VSB < VCC
VDISP = VSS
DISP = VCC
VSR < VSS = discharge;
VSR > VSS = charge
-200mV < VSR < VCC
PROG1–PROG5
PROG1–PROG5; note 2
PROG1–PROG5
VCC = 3V, IOLS ≤ 1.75mA
SEG1–SEG5
VCC = 6.5V, IOLS ≤ 11.0mA
SEG1–SEG5
VCC = 3V, IOHLCOM = -5.25mA
VCC = 6.5V, IOHLCOM = -33.0mA
VPROG = VCC/2
VPROG = VCC/2
At VOHLCH = VCC - 0.6V
At VOLSH = 0.4V
At VOL = VSS + 0.3V
DQ, EMPTY, CHG
IOL ≤ 5mA, DQ, EMPTY
DQ
DQ
KΩ PROG1–PROG5
MΩ PROG1–PROG5
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