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參數(shù)資料
| 型號： | bq2050 |
| 廠商： | Benchmark Technology Group |
| 英文描述： | Lithium Ion Power Gauge IC(鋰離子電源Gause 芯片) |
| 中文描述： | 鋰離子動力計IC（鋰離子電源高斯芯片） |
| 文件頁數(shù)： | 17/21頁 |
| 文件大小： | 235K |
| 代理商： | BQ2050 |
17
bq2050
DC Electrical Characteristics
(TA= TOPR)
Symbol
Parameter
Minimum
Typical
Maximum
Unit
Notes
V
CC
Supply voltage
3.0
4.25
6.5
V
V
CC
excursion from < 2.0V to
≥
3.0V initializes the unit.
DISP = V
CC
I
REF
= 5
μ
A
I
REF
= 5
μ
A
V
REF
= 3V
V
CC
= 3.0V, DQ = 0
V
CC
= 4.25V, DQ = 0
V
CC
= 6.5V, DQ = 0
V
OS
Offset referred to V
SR
Reference at 25°C
Reference at -40°C to +85°C
Reference input impedance
-
±
50
6.0
-
5.0
90
120
170
-
-
-
-
-
-
±
150
6.3
7.5
-
135
180
250
V
CC
-
5
0.2
100
-
μ
V
V
V
M
μ
A
μ
A
μ
A
V
M
μ
A
μ
A
nA
K
V
REF
5.7
4.5
2.0
-
-
-
0
10
-
-0.2
-
500
R
REF
I
CC
Normal operation
V
SB
R
SBmax
I
DISP
I
LCOM
I
RBI
R
DQ
Battery input
SB input impedance
DISP input leakage
LCOM input leakage
RBI data retention current
Internal pulldown
0 < V
SB
< V
CC
V
DISP
= V
SS
DISP = V
CC
V
RBI
> V
CC
< 3V
V
SR
Sense resistor input
-0.3
-
2.0
V
V
SR
< V
SS
= discharge;
V
SR
> V
SS
= charge
-200mV < V
SR
< V
CC
PROG
1
–PROG
6
PROG
1
–PROG
6
PROG
1
–PROG
6
V
CC
= 3V, I
OLS
≤
1.75mA
SEG
1
–SEG
5
V
CC
= 6.5V, I
OLS
≤
11.0mA
SEG
1
–SEG
5
V
CC
= 3V, I
OHLCOM
= -5.25mA
V
CC
= 6.5V, I
OHLCOM
= -33.0mA
V
PROG
= V
CC
/2
V
PROG
= V
CC
/2
At V
OHLCH
= V
CC
- 0.6V
At V
OLSH
= 0.4V
At V
OL
= V
SS
+ 0.3V
DQ
I
OL
≤
5mA, DQ
DQ
DQ
R
SR
V
IH
V
IL
V
IZ
SR input impedance
Logic input high
Logic input low
Logic input Z
10
-
-
-
-
-
-
M
V
V
V
V
CC
- 0.2
-
float
V
SS
+ 0.2
float
V
OLSL
SEG
X
output low, low V
CC
-
0.1
-
V
V
OLSH
SEG
X
output low, high V
CC
-
0.4
-
V
V
OHLCL
V
OHLCH
I
IH
I
IL
I
OHLCOM
I
OLS
LCOM output high, low V
CC
LCOM output high, high V
CC
PROG
1-6
input high current
PROG
1-6
input low current
LCOM source current
SEG
1-5
sink current
V
CC
- 0.3
V
CC
- 0.6
-
-
-33
-
-
-
-
-
-
-
-
V
V
1.2
1.2
-
-
μ
A
μ
A
mA
mA
11.0
I
OL
Open-drain sink current
-
-
5.0
mA
V
OL
V
IHDQ
V
ILDQ
Open-drain output low
DQ input high
DQ input low
Soft pull-up or pull-down resis-
tor value (for programming)
Float state external impedance
-
-
-
-
0.5
-
0.8
V
V
V
2.5
-
R
PROG
-
-
200
K
PROG
1
–PROG
6
R
FLOAT
-
5
-
M
PROG
1
–PROG
6
Note:
All voltages relative to V
SS
.
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