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參數(shù)資料
| 型號： | bq2010 |
| 廠商： | Benchmark Technology Group |
| 英文描述： | Gas Gauge IC(Gas Gauge芯片) |
| 中文描述： | 氣體計IC（電量監(jiān)測計芯片） |
| 文件頁數(shù)： | 12/20頁 |
| 文件大?。?/td> | 185K |
| 代理商： | BQ2010 |
The
valid discharge
flag (VDQ) is asserted when the
bq2010 is discharged from NAC=LMD. The flag remains
set until either LMD is updated or one of three actions
that can clear VDQ occurs:
The self-discharge count register (SDCR) has
exceeded the maximum acceptable value (4096
counts) for an LMD update.
A valid charge action sustained at V
SRO
> V
SRQ
for at
least 256 NAC counts.
The EDV1 flag was set at a temperature below 0°C
The VDQ values are:
Where VDQ is:
0
SDCR
≥
4096, subsequent valid charge ac-
tion detected, or EDV1 is asserted with the
temperature less than 0°C
1
On first discharge after NAC = LMD
The
first end-of-discharge warning
flag (EDV1)
warns the user that the battery is almost empty. The
first segment pin, SEG
, is modulated at a 4Hz rate if
the display is enabled once EDV1 is asserted, which
should warn the user that loss of battery power is immi-
nent. The EDV1 flag is latched until a valid charge has
been detected.
The EDV1 values are:
Where EDV1 is:
0
Valid charge action detected, V
SB
≥
1.05V
V
< 1.05V providing that OVLD=0 (see
FLGS2 register description)
1
The
final end-of-discharge warning
flag (EDVF) is
used to warn that battery power is at a failure condition.
All segment drivers are turned off. The EDVF flag is
latched until a valid charge has been detected. The
EMPTY pin is also forced to a high-impedance state on
assertion of EDVF. The host system may pull EMPTY
high, which may be used to disable circuitry to prevent
deep-discharge of the battery.
The EDVF values are:
Where EDVF is:
0
Valid charge action detected, V
SB
≥
0.95V
V
< 0.95V providing that OVLD=0 (see
FLGS2 register description)
1
Temperature and Gas Gauge Register
(TMPGG)
The read-only TMPGG register (address=02h) contains
two data fields. The first field contains the battery tem-
perature. The second field contains the available charge
from the battery.
The bq2010 contains an internal temperature sensor.
The temperature is used to set charge and discharge ef-
ficiency factors as well as to adjust the self-discharge co-
efficient.
The temperature register contents may be translated as
shown below.
12
bq2010
TMPGG Temperature Bits
7
6
5
4
3
2
1
0
TMP3
TMP2
TMP1
TMP0
-
-
-
TMP3
TMP2
TMP1
Temperature
0
0
0
0
0
0
0
0
1
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
0
1
0
1
0
1
0
1
0
1
0
T < -30°C
-30°C < T < -20°C
-20°C < T < -10°C
-10°C < T < 0°C
0°C < T < 10°C
10°C < T < 20°C
20°C < T < 30°C
30°C < T < 40°C
40°C < T < 50°C
50°C < T < 60°C
60°C < T < 70°C
70°C < T < 80°C
T > 80°C
FLGS1 Bits
7
6
5
4
3
2
1
0
-
-
-
-
-
-
-
EDVF
FLGS1 Bits
7
6
5
4
3
2
1
0
-
-
-
-
-
-
EDV1
-
FLGS1 Bits
7
6
5
4
3
2
1
0
-
-
-
-
VDQ
-
-
-
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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 |
| BQ2010SN-D107 | 功能描述:電池管理 NiCd/NiMH Gas Gauge RoHS:否 制造商:Texas Instruments 電池類型:Li-Ion 輸出電壓:5 V 輸出電流:4.5 A 工作電源電壓:3.9 V to 17 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:VQFN-24 封裝:Reel |
| BQ2010SN-D107 | 制造商:Texas Instruments 功能描述:IC's |
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