BQ2052_15 Datasheet, PDF (14/20 Pages) Texas Instruments – Gas Gauge IC

Not Recommended For New Designs
bq2052 Preliminary
DC Electrical Characteristics (TA = TOPR)
Symbol
Parameter
V_CC
Supply voltage
V_OS
V_REF
R_REF
Offset referred to VSR
Reference at 25°C
Reference at -40°C to +85°C
Reference input impedance
ICC
Normal operation
V_SB
R_SBmax
I_DISP
I_LCOM
I_RBI
R_HDQ
R_SR
V_IHPFC
V_ILPFC
V_IZPFC
Battery input
SB input impedance
DISP input leakage
LCOM input leakage
RBI data retention current
Internal pulldown
SR input impedance
PROG logic input high
PROG logic input low
PROG logic input Z
V_OLSL SEG output low, low V_CC
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
0
-
VCC
10
-
-
-
-
5
-0.2
-
0.2
-
-
100
500
-
-
10
-
-
V_CC - 0.2
-
-
-
-
V_SS + 0.2
float
-
float
-
0.1
-
V_OLSH SEG output low, high V_CC
-
0.4
-
V_OHML LCOM output high, low V_CC V_CC - 0.3
-
-
V_OHMH LCOM output high, high V_CC V_CC - 0.6
-
-
I_OLS
SEG sink current
11.0
-
-
I_OL
Open-drain sink current
5.0
-
-
V_OL
Open-drain output low
-
-
0.3
V_IHDQ HDQ input high
2.5
-
-
V_ILDQ HDQ input low
-
-
0.8
R_PROG
Soft pull-up or pull-down resis-
tor value (for programming)
-
-
200
R_FLOAT Float state external impedance
-
5
-
Note:
All voltages relative to VSS.
Unit
V
µV
V
V
MΩ
µA
µA
µA
V
MΩ
µA
µA
nA
KΩ
MΩ
V
V
V
V
V
V
V
mA
mA
V
V
V
Notes
VCC excursion from < 2.0V to
≥ 3.0V initializes the unit.
DISP = VCC
IREF = 5µA
I_REF = 5µA
VREF = 3V
VCC = 3.0V, HDQ = 0
V_CC = 4.25V, HDQ = 0
VCC = 6.5V, HDQ = 0
0 < V_SB < V_CC
VDISP = VSS
DISP = VCC
V_RBI > V_CC < 3V
V_SR < V_CC
PROG_1-6
PROG_1-6
PROG_1-6
VCC = 3V, IOLS ≤ 1.75mA
SEG₁–₅, CP
VCC = 6.5V, IOLS ≤ 11.0mA
SEG₁–₅, CP
VCC = 3V, IOHLCOM =
-5.25mA
V_CC > 3.5V, I_OHLCOM =
-33.0mA
At V_OLSH = 0.4V, V_CC = 6.5V
At V_OL = V_SS + 0.3V, HDQ
I_OL ≤ 5mA, HDQ
HDQ
HDQ
KΩ PROG1–PROG6
MΩ PROG_1–6
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