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參數(shù)資料
| 型號(hào)： | bq2010 |
| 廠商： | Benchmark Technology Group |
| 英文描述： | Gas Gauge IC(Gas Gauge芯片) |
| 中文描述： | 氣體計(jì)IC（電量監(jiān)測(cè)計(jì)芯片） |
| 文件頁數(shù)： | 15/20頁 |
| 文件大?。?/td> | 185K |
| 代理商： | BQ2010 |
whenever the NAC registers are counting at a rate equiva-
lent to |V
|
≥
4mV. When pulled low, the segment out-
puts become active immediately. A capacitor tied to DISP
allows the display to remain active for a short period of
timeafteractivationbyapush-buttonswitch.
The segment outputs are modulated as two banks of
three, with segments 1, 3, and 5 alternating with seg-
ments 2, 4, and 6. The segment outputs are modulated
at approximately 100Hz with each segment bank active
for 30% of the period.
SEG
blinks at a 4Hz rate whenever V
has been de-
tected to be below V
EDV1
(EDV1 = 1), indicating a low-
battery condition. V
SB
EDVF
(EDVF = 1) disables
the display output.
Microregulator
The bq2010 can operate directly from 3 or 4 cells. To fa-
cilitate the power supply requirements of the bq2010, an
REF output is provided to regulate an external low-
threshold n-FET. A micropower source for the bq2010
can be inexpensively built using the FET and an exter-
nal resistor;see Figure 1.
15
Absolute Maximum Ratings
Symbol
Parameter
Minimum
Maximum
Unit
Notes
V
CC
All other pins
Relative to V
SS
Relative to V
SS
Relative to V
SS
-0.3
+7.0
V
-0.3
+7.0
V
REF
-0.3
+8.5
V
Current limited by R1 (see Figure 1)
V
SR
Relative to V
SS
-0.3
+7.0
V
Minimum 100
series resistor should
be used to protect SR in case of a
shorted battery (see the bq2010 appli-
cation note for details).
T
OPR
Operating tempera-
ture
0
+70
°C
Commercial
-40
+85
°C
Industrial
Note:
Permanent device damage may occur if
Absolute Maximum Ratings
are exceeded.Functional operation
should be limited to the Recommended DC Operating Conditions detailed in this data sheet. Exposure to condi-
tions beyond the operational limits for extended periods of time may affect device reliability.
DC Voltage Thresholds
(T
A
= T
OPR
; V = 3.0 to 6.5V)
Symbol
Parameter
Minimum
Typical
Maximum
Unit
Notes
V
EDVF
Final empty warning
0.93
0.95
0.97
V
SB
V
EDV1
First empty warning
1.03
1.05
1.07
V
SB
V
SR1
Discharge compensation threshold
-120
-150
-180
mV
SR, V
SR
+ V
OS
V
SRO
SR sense range
-300
-
+2000
mV
SR, V
SR
+ V
OS
V
SRQ
Valid charge
375
-
-
μ
V
V
SR
+ V
OS
(see note)
V
SRD
Valid discharge
-
-
-300
μ
V
V
SR
+ V
OS
(see note)
V
MCV
Maximum single-cell voltage
2.20
2.25
2.30
V
SB
V
BR
Battery removed/replaced
-
0.1
0.25
V
SB pulled low
2.20
2.25
2.30
V
SB pulled high
Note:
Default value; value set in DMF register. V
is affected by PC board layout. Proper layout guidelines
should be followed for optimal performance. See “LayoutConsiderations.”
bq2010
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| BQ2010PN | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Battery Management |
| BQ2010PN-N | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Battery Management |
| BQ2010SN- | 制造商:TI 制造商全稱:Texas Instruments 功能描述:Gas Gauge IC |
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| BQ2010SN-D107 | 制造商:Texas Instruments 功能描述:IC's |
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