BQ2040_15 Datasheet, PDF (28/36 Pages) Texas Instruments – Gas Gauge IC With SMBus Interface

Not Recommended For New Designs
bq2040
Recommended DC Operating Conditions (TA = TOPR)
Symbol
Parameter
VCC
Supply voltage
VREF
RREF
Reference at 25°C
Reference at -40°C to +85°C
Reference input impedance
ICC
Normal operation
VSB
RSBmax
IDISP
ILVOUT
Battery input
SB input impedance
DISP input leakage
VOUT output leakage
VSR
Sense resistor input
RSR
SR input impedance
VIH
Logic input high
VIL
Logic input low
VOL
IOL
VOLSL
Data, clock output low
Sink current
LEDX output low, low VCC
VOLSH LEDX output low, high VCC
VOHVL
VOHVH
IVOUT
IOLS
Note:
VOUT output, low VCC
VOUT output, high VCC
VOUT source current
LEDX sink current
All voltages relative to VSS.
Minimum Typical Maximum
3.0
4.25
6.5
5.7
6.0
6.3
4.5
-
7.5
2.0
5.0
-
-
90
135
-
120
180
-
170
250
0
-
VCC
10
-
-
-
-
5
-0.2
-
0.2
-0.3
-
2.0
10
-
0.5 ∗ VCC
-
1.4
-
0
-
-0.5
-
-
100
-
-
VCC
5.5
0.3 ∗ VCC
0.6
0.4
350
-
0.1
-
-
0.4
-
VCC - 0.3
-
-
VCC - 0.6
-
-
-33
-
-
11.0
-
Unit
Notes
V
VCC excursion from < 2.0V to ≥
3.0V initializes the unit.
V IREF = 5µA
V IREF = 5µA
MΩ VREF = 3V
µA VCC = 3.0V
µA V_CC = 4.25V
µA VCC = 5.5V
V
MΩ 0 < VSB < VCC
µA VDISP = VSS
µA EEPROM off
V
VSR < VSS = discharge;
VSR > VSS = charge
MΩ -200mV < VSR < VCC
V ESCL, ESDA
V SMBC, SMBD
V ESCL, ESDA
V SMBC, SMBD
V IOL=350µA, SMBC, SMBD
µA VOL≤0.4V, SMBC, SMBD
V
VCC = 3V, IOLS ≤ 1.75mA
LED1–LED4
V
VCC = 6.5V, IOLS ≤ 11.0mA
LED1–LED4
V VCC = 3V, IVOUT = -5.25mA
V VCC = 6.5V, IVOUT = -33.0mA
mA At VOHVH = VCC - 0.6V
mA At VOLSH = 0.4V
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