參數(shù)資料
型號(hào)： bq2060
廠商： Benchmark Technology Group
英文描述： SBS v1.1-Compliant Gas Gauge IC(Gas Gauge芯片)
中文描述： 銀紫荊星章1.1版兼容的氣體計(jì)IC（電量監(jiān)測計(jì)芯片）
文件頁數(shù)： 33/45頁
文件大小： 457K
代理商： BQ2060
C is 0%, 3%, or
Battery Low %
for EDV0, EDV1, and
EDV2, respectively and C0 is the capacity related
EDV adjustment factors. C0 is programmed in the
lower 11 bits of
EDV C0 Factor/ EDV2
EE 0x78–79.
The
Residual Capacity Factor
is stored in the upper 5
bits of EE 0x78–0x79.
Residual Capacity Factor C1
RESIDUAL
%
.56
RESIDUAL % is the desired battery capacity remaining
at EDV0 (RM = 0).
T is thecurrent temperaturein
°
K
R0
F
TZ
represents the resistance of the battery as a
function of temperatureand capacity.
F
TZ
= f ( R1 , T0, T, C + C1)
(11)
R0 is the first order rate dependency factor stored in
EDV R0 Factor
EE 0x7a–0x7b.
T
capacity relating to EDV0, EDV1, and EDV2; and C1
is the desired residual battery capacity remaining at
EDV0 (RM = 0).
is the current temperature; C is the battery
R1 adjusts the variation of impedance with battery
capacity. R1 is programmed in
EDV R1 Rate Factor
EE 0x7c–0x7d.
T0 adjusts the variation of impedance with battery
temperature.
T0 is programmed in
EDV T0 Rate
Factor
EE 0x76–0x77.
F
CY
is the factor that adjusts for changing cell imped-
anceas thebattery pack is cycled.
where
F
CY
= f(A0, CycleCount())
(12)
A0 is the EDV aging factor that is stored in
EDV A0
Factor
EE 0x06. It should be set to 0 for most
applications.
Typical values for the EDV compensation factors for a
Li-Ion 3s3p 18650 pack are
EMF = 11550
T0 = 4475
C0 = 235
C1 = 0
R0 = 5350
R1 = 250
A0 = 0
The graphs in Figures 7 and 8 show the calculated
EDV0, EDV1, and EDV2 thresholds versus capacity us-
ing the typical compensation values for different tem-
peratures and loads for a Li-Ion 3s3p 18650 pack. The
compensation values vary widely for different cell types
and manufacturers and must be matched exactly to the
uniquecharacteristics for optimal performance.
Overload Current Threshold
The
Overload Current
threshold is a 16-bit value stored
in EE 0x46-0x47 in mA units.
33
Battery Low %= 7%, Load = 500mA
7500
8000
8500
9000
9500
10000
10500
11000
EDV2
11500
10
9
8
7
6
5
4
3
2
1
0
% Capacity
V
45C/500mA
20C/500mA
Figure 7. EDV Calculations vs. Capacity
for Various Temperatures
Battery Low %
=7%, Temperature = 35 C
7000
10000
EDV2
10500
8000
7500
9000
8500
9500
11000
11500
10
9
8
7
6
5
4
3
2
1
0
% Capacity
V
35C/2A
35C/500mA
35C/1A
Figure 8. EDV Calculations vs. Capacity
for Various Loads
bq2060
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
BQ2060A 制造商:TI 制造商全稱:Texas Instruments 功能描述:SBS v1.1-Compliant Gas Gauge IC
BQ2060ADBQ 功能描述:電池管理 SBS V1.1 Compliant GG IC 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
BQ2060ADBQG4 功能描述:電池管理 SBS V1.1 Compliant GG IC 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
BQ2060ADBQR 功能描述:電池管理 SBS V1.1 Compliant 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
BQ2060ADBQRG4 功能描述:電池管理 SBS V1.1 Compliant 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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