BQ2050H_15 Datasheet, PDF (19/30 Pages) Texas Instruments – Low-Cost Lithium Ion Power Gauge™ IC

Not Recommended For New Designs
bq2050H
DC Electrical Characteristics (TA = TOPR)
Symbol
V_CC
V_OS
VREF
R_REF
I_CC
V_SB
R_SBmax
I_DISP
ILCOM
I_RBI
R_HDQ
R_SR
V_IHPFC
VILPFC
VIZPFC
VOLSL
V_OLSH
V_OHML
V_OHMH
I_OLS
I_OL
V_OL
V_IHDQ
V_ILDQ
V_IH
V_IL
R_PROG
R_FLOAT
Parameter
Supply voltage
Offset referred to V_SR
Reference at 25°C
Reference at -40°C to +85°C
Reference input impedance
Normal operation
Battery input
SB input impedance
DISP input leakage
LCOM input leakage
RBI data retention current
Internal pulldown
SR input impedance
Logic input high
Logic input low
Logic input Z
SEG output low, low VCC
Minimum Typical
3.0
4.25
-
±50
5.7
6.0
4.5
-
2.0
5.0
-
90
-
120
-
170
0
-
10
-
-
-
-0.2
-
-
-
500
-
10
-
V_CC - 0.2
-
-
-
float
-
-
0.1
SEG output low, high VCC
-
0.4
LCOM output high, low VCC VCC - 0.3 -
LCOM output high, high V_CC V_CC - 0.6 -
SEG sink current
11.0
-
Open-drain sink current
5.0
-
Open-drain output low
-
-
HDQ input high
2.5
-
HDQ input low
-
-
Logic input high
2.5
-
Logic input low
-
-
Soft pull-up or pull-down resis-
tor value (for programming)
-
-
Float state external impedance -
5
Maximum
6.5
±150
6.3
7.5
-
135
180
250
VCC
-
5
0.2
100
-
-
-
VSS + 0.2
float
-
-
-
-
-
-
0.3
-
0.8
-
0.5
200
-
Unit
Notes
V
VCC excursion from < 2.0V to ≥
3.0V initializes the unit.
µV DISP = VCC
V IREF = 5µA
V I_REF = 5µA
MΩ VREF = 3V
µA VCC = 3.0V, HDQ = 0
µA V_CC = 4.25V, HDQ = 0
µA VCC = 6.5V, HDQ = 0
V
MΩ 0 < V_SB < V_CC
µA VDISP = VSS
µA DISP = VCC
nA V_RBI > V_CC < 3V
KΩ
MΩ -200mV < V_SR < V_CC
V PROG_1–5
V PROG1–5
V PROG1–5
V
VCC = 3V, IOLS ≤ 1.75mA
SEG₁–SEG₅, CFC
V
VCC = 6.5V, IOLS ≤ 11.0mA
SEG₁–SEG₅, CFC
V VCC = 3V, IOHLCOM = -5.25mA
V V_CC > 3.5V, I_OHLCOM = -33.0mA
mA At VOLSH = 0.4V, VCC = 6.5V
mA At VOL = VSS + 0.3V, HDQ
V I_OL ≤ 5mA, HDQ
V HDQ
V HDQ
V PSTAT
V PSTAT
KΩ PROG1–5
MΩ PROG₁–₅
Note:
All voltages relative to V_SS.
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