參數(shù)資料
型號(hào)： BQ2083
英文描述： Silicon Bridge Rectifiers
中文描述： 銀紫荊星章符合電量監(jiān)測(cè)計(jì)芯片的使用與BQ29311
文件頁(yè)數(shù)： 17/54頁(yè)
文件大?。?/td> 461K
代理商： BQ2083
SLUS573 JULY 2003
www.ti.com
17
The DMODE bit in
Pack Configuration
DF 0x28 programs the bq2083V1P2 for the absolute or relative display mode.
The LED bits program the 3-, 4-, or 5-LED option.
Activation
The display may be activated at any time by a high-to-low transition on the DISP input. This is usually accomplished
with a pullup resistor and a pushbutton switch. Detection of the transition activates the display and starts a four
second display timer. Reactivation of the display requires that the DISP input return to a logic-high state and then
transition low again. The second high-to-low transition can be detected only after the display timer expires. If unused,
the DISP input must be pulled up to V
CC
.
If the EDV0 bit is set, the bq2083V1P2 disables the LED display.
Display Modes
In relative mode, each LED output represents 20%, 25%, or 33% of the RelativeStateOfCharge( ) value. In absolute
mode, each LED output represents 20%, 25% or 33% of the AbsoluteStateOfCharge( ) value. Table 7 shows the
display options for 5 LEDs Table 8 for 4 LEDs, and Table 9 for 3 LEDs.
In either mode, the bq2083V1P2 blinks the LED display if RemainingCapacity( ) is less than Remaining
CapacityAlarm( ). The display is disabled if EDV0 = 1.
Table 7. Display Mode for Five LEDs
CONDITION
RELATIVE OR ABSOLUTE
StateOfCharge()
FIVE-LED DISPLAY OPTION
LED1
LED2
LED3
LED4
LED5
EDV0 = 1
OFF
OFF
OFF
OFF
OFF
<20%
ON
OFF
OFF
OFF
OFF
≥
20%, < 40%
≥
40%, < 60%
≥
60%, < 80%
≥
80%
ON
ON
OFF
OFF
OFF
ON
ON
ON
OFF
OFF
ON
ON
ON
ON
OFF
ON
ON
ON
ON
ON
Table 8. Display Mode for Four LEDs
CONDITION
RELATIVE OR ABSOLUTE
StateOfCharge()
FOUR-LED DISPLAY OPTION
LED1
LED2
LED3
LED4
EDV0 = 1
OFF
OFF
OFF
OFF
<25%
ON
OFF
OFF
OFF
≥
25%, < 50%
≥
50%, < 75%
≥
75%
ON
ON
OFF
OFF
ON
ON
ON
OFF
ON
ON
ON
ON
Table 9. Display Mode for Three LEDs
CONDITION
RELATIVE OR ABSOLUTE
StateOfCharge()
THREE-LED DISPLAY OPTION
LED1
LED2
LED3
EDV0 = 1
OFF
OFF
OFF
<34%
ON
OFF
OFF
≥
34%, < 67%
≥
67%
ON
ON
OFF
ON
ON
ON
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