- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄385185 > bq2011 (Benchmark Technology Group) Gas Gauge IC for High Discharge Rates(用于高放電率的氣體Gauge芯片) PDF資料下載
參數(shù)資料
| 型號(hào)： | bq2011 |
| 廠商： | Benchmark Technology Group |
| 英文描述： | Gas Gauge IC for High Discharge Rates(用于高放電率的氣體Gauge芯片) |
| 中文描述： | 氣體計(jì)IC，高放電率（用于高放電率的氣體計(jì)芯片） |
| 文件頁(yè)數(shù)： | 3/20頁(yè) |
| 文件大小： | 181K |
| 代理商： | BQ2011 |
第1頁(yè)第2頁(yè)當(dāng)前第3頁(yè)第4頁(yè)第5頁(yè)第6頁(yè)第7頁(yè)第8頁(yè)第9頁(yè)第10頁(yè)第11頁(yè)第12頁(yè)第13頁(yè)第14頁(yè)第15頁(yè)第16頁(yè)第17頁(yè)第18頁(yè)第19頁(yè)第20頁(yè)
Functional Description
General Operation
The bq2011 determines battery capacity by monitoring
the amount of charge input to or removed from a re-
chargeable battery. The bq2011 measures discharge and
charge currents, estimates self-discharge, monitors the
battery for low-battery voltage thresholds, and compen-
sates for temperature and charge/discharge rates. The
charge measurement is made by monitoring the voltage
across a small-value series sense resistor between the
negative battery terminal and ground.
battery charge is determined by monitoring this voltage
over time and correcting the measurement for the envi-
ronmental and operating conditions.
The available
Figure 1 shows a typical battery pack application of the
bq2011 using the LED display with absolute mode as a
charge-state indicator. The bq2011 can be configured to
display capacity in either a relative or an absolute dis-
play mode.
The relative display mode uses the last
measured discharge capacity of the battery as the bat-
tery “full” reference. The absolute display mode uses the
programmed full count (PFC) as the full reference, forc-
ing each segment of the display to represent a fixed
amount of charge.
A push-button display feature is
available for momentarily enabling the LED display.
The bq2011 monitors the charge and discharge currents
as a voltage across a sense resistor (see R
S
in Figure 1).
A filter between the negative battery terminal and the
SR pin may be required if the rate of change of the bat-
tery current is too great.
3
bq2011
FG201101.eps
PFC
SEG5
SEG4
SEG3
SEG2
SEG1
VSS
DISP
SB
VCC
REF
bq2011
Gas Gauge IC
MODE
SR
RBI
DQ
VCC
C1
0.1 F
Q1
ZVNL110A
R1
RS
RB1
RB2
Load
Charger
Indicates optional.
Directly connect to VCC across 4 cells (4.8V nominal and should not
exceed 6.5V) with a resistor and a Zener diode to limit voltage during charge.
Otherwise, R1, C1, and Q1 are needed for regulation of >4 cells.
Programming resistors and ESD-protection diodes are not shown.
R-C on SR may be required, (application-specific), where the maximum
R should not exceed 20K.
Figure 1. Battery Pack Application Diagram—LED Display,
Absolute Mode
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| bq2012 | Gas Gauge IC With Slow-Charge Control(Gas Gauge芯片（帶慢充電控制）) |
| bq2013H | Gas Gauge IC for Power-Assist Applications(應(yīng)用于電源援助的氣體Gauge芯片) |
| bq2014H | Low-Cost NiCd/NiMH Gas Gauge IC(低價(jià)格NiCd/NiMHGas Gauge芯片) |
| bq2014 | Gas Gauge IC with External Charge Control(氣體Gauge（帶外部電荷控制）) |
| bq2040 | Gas Gauge IC With SMBus Interface(氣體Gauge芯片（帶SMBus 接口）) |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| BQ2011_05 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:Gas Gauge IC for High Discharge Rates |
| BQ2011JPN | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Battery Management |
| BQ2011JPN-N | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Battery Management |
| BQ2011JSN | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Battery Management |
| BQ2011K | 制造商:TI 制造商全稱:Texas Instruments 功能描述:Gas Gauge IC for High Discharge Rates |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。