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參數(shù)資料
| 型號： | bq2012 |
| 廠商： | Benchmark Technology Group |
| 英文描述： | Gas Gauge IC With Slow-Charge Control(Gas Gauge芯片（帶慢充電控制）) |
| 中文描述： | 氣體計(jì)IC緩慢充電控制（電量監(jiān)測計(jì)芯片（帶慢充電控制）） |
| 文件頁數(shù)： | 11/20頁 |
| 文件大?。?/td> | 188K |
| 代理商： | BQ2012 |
Command Register (CMDR)
The write-only CMDR register is accessed when eight
valid command bits have been received by the bq2012.
The CMDR register contains two fields:
I
W/R bit
I
Command address
The W/R bit of the command register is used to select
whether the received command is for a read or a write
function.
The W/R values are:
Where W/R is:
0
The bq2012 outputs the requested register
contents specified by the address portion of
CMDR.
1
The following eight bits should be written
to the register specified by the address por-
tion of CMDR.
The lower seven-bit field of CMDR contains the address
portion of the register to be accessed. Attempts to write
to invalid addresses are ignored.
Primary Status Flags Register (FLGS1)
The read-only FLGS1 register (address=01h) contains
the primary bq2012 flags.
The
charge status
flag (CHGS) is asserted when a
valid charge rate is detected.
valid when V
SRO
> V
SRQ
. A V
SRO
of less than V
SRQ
or
discharge activity clears CHGS.
Charge rate is deemed
The CHGS values are:
Where CHGS is:
0
Either discharge activity detected or V
SRO
<
V
SRQ
1
V
SRO
> V
SRQ
The
battery replaced
flag (BRP) is asserted whenever
the potential on the SB pin (relative to V
SS
), V
SB
, falls
from above the maximum cell voltage, MCV (2.25V), or
rises above 0.1V.
The BRP flag is also set when the
bq2012 is reset (see the RST register description). BRP
is reset when either a valid charge action increments
NAC to be equal to LMD, or a valid charge action is de-
tected after the EDV1 flag is asserted. BRP = 1 signifies
that the device has been reset.
The BRP values are:
Where BRP is:
0
Battery is charged until NAC = LMD or dis-
charged until the EDV1 flag is asserted
1
V
SB
dropping from above MCV, V
SB
rising
from below 0.1V, or a serial port initiated
reset has occurred
11
bq2012
FLGS1 Bits
7
6
5
4
3
2
1
0
CHGS
-
-
-
-
-
-
-
FLGS1 Bits
7
6
5
4
3
2
1
0
-
BRP
-
-
-
-
-
-
CMDR Bits
7
6
5
4
3
2
1
0
-
AD6 AD5
AD4
AD3
AD2
AD1
AD0
(LSB)
CMDR Bits
7
6
5
4
3
2
1
0
W/R
-
-
-
-
-
-
-
TD201201.eps
DQ
Break
0 0 0 0 0 0
1 0 1 0 0 1
Written by Host to bq2012
CMDR = 03h
Received by Host to bq2012
NAC = 65h
LSB
MSB
LSB
MSB
1
1
1 0
Figure 3. Typical Communication With the bq2012
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| BQ2-012 | 制造商:SMC Corporation of America 功能描述:Adapter Plate to mount D-M9 autoswitches to NCQ2 series cylinders 制造商:SMC 功能描述:Supporto per sensore per CQ2 |
| BQ2012PN | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Battery Management |
| BQ2012PN-N | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Battery Management |
| BQ2012SN | 制造商:TI 制造商全稱:Texas Instruments 功能描述:Gas Gauge IC With Slow-Charge Control |
| BQ2012SN-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 |
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