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
文件頁數(shù)： 26/54頁
文件大?。?/td> 461K
代理商： BQ2083
SLUS573 JULY 2003
www.ti.com
26
The following functions are calculated on the basis of capacity and may be calculated differently depending on
the CAPACITY_MODE bit:
AtRateOK( )
AtRateTimeToEmpty( )
AtRateTimeToFull( )
RunTimeToEmpty( )
AverageTimeToEmpty( )
AverageTimeToFull( )
Remaining Time Alarm( )
BatteryStatus( )
The bq2083V1P2 updates the non-AtRate related register values within 1 s of changing the state of the
CAPACITY_MODE bit. The AtRate( ) values are updated after the next AtRate value is written to the
bq2083V1P2 (or after the next 1 s scheduled refresh calculation).
AtRate( ) (0x04)
Description:
The AtRate( ) function is the first half of a two-function call-set used to set the AtRate value used
in calculations made by the AtRateTimeToFull( ), AtRateTimeToEmpty( ), and AtRateOK( ) functions. The AtRate
value may be expressed in either current (mA) or power (10 mW) depending on the setting of the BatteryMode( )
CAPACITY_MODE bit.
Purpose:
Since the AtRate( ) function is the first half of a two-function call-set, it is followed by the second function
of the call-set that calculates and returns a value based on the AtRate value and the battery’s present state.
When the AtRate( ) value is positive, the AtRateTimeToFull( ) function returns the predicted time to full-charge
at the AtRate value of charge.
When the AtRate( ) value is negative, the AtRateTimeToEmpty( ) function returns the predicted operating time
at the AtRate value of discharge.
When the AtRate( ) value is negative, the AtRateOK( ) function returns a boolean value that predicts the
battery’s ability to supply the AtRate value of
additional
discharge energy (current or power) for 10 seconds.
The default value for AtRate( ) is zero.
SMBus protocol:
Read or write word
Input/Output:
Signed integer-charge or discharge; the AtRate( ) value is positive for charge, negative for
discharge, and zero for neither (default).
BATTERY MODES
CAPACITY_MODE
BIT = 0
mA
1 to 32,767 mA
1 to 32,768 mA
1 Unit
NA
CAPACITY_MODE
BIT = 1
10 mW
1 to 32,767 10 mW
1 to 32,768 10 mW
Units
Charge range
Discharge range
Granularity
Accuracy
AtRateTimeToFull( ) (0x05)
Description:
Returns the predicted remaining time to fully charge the battery at the AtRate( ) value (mA).
Purpose:
The AtRateTimeToFull( ) function is part of a two-function call-set used to determine the predicted
remaining charge time at the AtRate value in mA. The bq2083V1P2 updates AtRateTimeToFull( ) within 5 ms
after the SMBus host sets the AtRate value. The bq2083V1P2 automatically updates AtRateTimeToFull( ) based
on the AtRate( ) value every 1 s.
SMBus protocol:
Read word
Output:
Unsigned integer
predicted time in minutes to fully charge the battery.
Units:
Minutes
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BQ2083DBT 功能描述:電池管理 SBS-Cmplnt Gas Gauge for Use w/BQ29311 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
BQ2083DBTG4 功能描述:電池管理 SBS-Cmplnt Gas Gauge for Use w/BQ29311 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
BQ2083DBTR 功能描述:電池管理 SBS-Cmplnt Gas Gauge for Use w/BQ29311 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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