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參數(shù)資料
| 型號： | 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） |
| 文件頁數(shù)： | 2/20頁 |
| 文件大?。?/td> | 181K |
| 代理商： | BQ2011 |
Pin Descriptions
MODE
Displaymodeoutput
When left floating, this output selects rela-
tive mode for capacity display. If connected
to the anode of the LEDs to source current,
absolute mode is selected for capacity dis-
play. See Table 1.
SEG
1
–
SEG
5
LED display segment outputs
Each output may activate an LED to sink
the current sourced from MODE, the bat-
tery, or V
CC
.
PFC
Programmed full count selection input
This three-level input pin defines the pro-
grammed full count (PFC) thresholds and
scale selections described in Table 1.
state of the PFC pin is only read immediate-
ly after a reset condition.
The
SR
Sense resistor input
The voltage drop (V
SR
) across the sense re-
sistor R
S
is monitored and integrated over
time to interpret charge and discharge activ-
ity. The SR input is tied to the low side of
the sense resistor. V
SR
> V
SS
indicates dis-
charge, and V
SR
< V
SS
indicates charge. The
effective voltage drop, V
SRO
, as seen by the
bq2011 is V
SR
+ V
OS
(see Table 3).
NC
No connect
DISP
Display control input
DISP floating allows the LED display to
be active during charge and discharge if
V
SRO
< -1mV (charge) or V
SRO
> 2mV (dis-
charge).
Transitioning DISP low activates
the display for 4
±
0.5 seconds.
SB
Secondary battery input
This input monitors the single-cell voltage
potential through a high-impedance resis-
tive divider network for the end-of-discharge
voltage (EDV) threshold and maximum cell
voltage (MCV).
RBI
Register backup input
This input is used to provide backup potential
to the bq2011 registers during periods when
V
CC
≤
3V. A storage capacitor should be con-
nectedtoRBI.
DQ
Serial I/O pin
This is an open-drain bidirectional pin.
REF
Voltage reference output for regulator
REF provides a voltage reference output for
an optional micro-regulator.
V
CC
Supply voltage input
V
SS
Ground
2
bq2011
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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 |
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