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參數(shù)資料
| 型號： | BQ2060SS |
| 英文描述： | Silicon Bridge Rectifiers |
| 中文描述： | 集成電路表面貼裝，棉絮電荷監(jiān)視器 |
| 文件頁數(shù)： | 34/46頁 |
| 文件大小： | 364K |
| 代理商： | BQ2060SS |
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Midrange Capacity Corrections
Three voltage-based thresholds,
VOC25
EE 0x6c–0x6d,
VOC50
EE 0x6e–0x6f, and
VOC75
EE 0x70–0x71, are
used to test the accuracy of the RM based on
open-circuit pack voltages. These thresholds are stored
in the EEPROM in 2’s complement of voltage in mV.
The values represent the open-circuit battery voltage at
which the battery capacity should correspond to the as-
sociated state ofcharge foreach threshold.
Self-Discharge Rate
The nominal self-discharge rate, %PERDAY(%per day),
is programmed in an 8-bit value
Self-Discharge Rate
EE
0x53bythe followingrelation:
Self
DischargeRate
2s
52.73
%PERDAY
(13)
Light Load Current
The amount of light load current in mA, ILEAK, used
for compensation is stored in
Light Discharge Current
in
EE 0x2bas follows:
Current
=ILEAK
arge
Light Disch
1024
45
(14)
ILEAKis between 0.044 and 11.2mA.
Charge Efficiency
The bq2060 uses four charge-efficiency factors to com-
pensate for charge acceptance. These factors are coded
in
High Charge Efficiency
,
Efficiency Reduction Rate
,
Ef-
ficiency DropOff Percentage,
and
Efficiency Temperature
Compensation
.
The bq2060 applies the efficiency factor, EFF%, when
RelativeStateOfCharge() is less than the value coded in
Efficiency Drop Off Percentage
EE 0x64. When
RelativeStateOfCharge() is greater than or equal to the
value coded in
Efficiency Drop Off Percentage
, EFF%
and ERR% determine the charge efficiency rate. ERR%
defines the percent efficiency reduction per percentage
point of RelativeStateOfCharge() over
Efficiency Drop
Off Percentage
. EFF% is encoded in
High Charge Effi-
ciency
EE 0x4d according to the followingequation:
High ChargeEfficiency
= 10
(EFF% - 74.5)
(15)
where
74.5
≤
EFF%
≤ 1
00.
ERR% is encoded in
Efficiency Reduction Rate
EE 0x65
according to the followingequation
Efficiency Reduction Rate
=ERR%
0.0125
(16)
where
0
≤
ERR%
≤
3.19
The
Efficiency Drop Off
Percentage is stored in 2’s com-
plement ofpercent.
The bq2060 also adjusts the efficiency factors for temper-
ature. TEFF% defines the percent efficiency reduction per
degree C over 25
°
C. TEFF% is encoded in
Efficiency Tem-
perature Compensation
EE 0x63 according to the follow-
ing equation
(17)
Efficiency Temperature Compensation
=TEFF% 1.6
0.0125
where
0
≤
TEFF%
≤
1.99
The bq2060 applies all four charge-compensation factors
when the CHEM bit in
Pack Configuration
is not set de-
noting a nickel pack.
(18)
Effective Charge Efficiency Reduction (nickel only)
= ERR%[RSOC() – EFF%] + TEFF%[T( C) –
where
RSOC()
≥
EFF% and T
≥ 25°
C
If CHEM is set denoting a Li-Ion pack, the bq2060 ap-
plies only the value coded in
High Charge Efficiency
and
makes no other adjustments for charge acceptance.
Charge Limits and Termination
Techniques
Charging Voltage
The 16-bit value,
Charging Voltage
EE 0x0a-0x0b pro-
grams the ChargingVoltage() value broadcast to a Smart
Charger. It is also sets the base value for determining
overvoltage conditions during charging and voltage com-
pliance during a constant-voltage charging methodology.
It is stored in mV.
Overvoltage
The 8-bit value,
Overvoltage Margin
EE 0x48, sets the
limit over ChargingVoltage() that is to be considered as
an overvoltage charge-suspension condition. The voltage
in mV above the ChargingVoltage(), VOVM, that should
34
bq2060
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| BQ2060SS-E207-EP | 功能描述:電池管理 Multi-Chem SBS 1.1 Compliant Gas Gauge 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 |
| BQ2060SS-E207-EPG4 | 功能描述:電池管理 Multi-Chem SBS 1.1 Compliant Gas Gauge 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 |
| BQ2060SS-E207TR-EP | 功能描述:電池管理 Multi-Chem SBS 1.1 Compliant Gas Gauge 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 |
| BQ2060SSE207TREPG4 | 功能描述:電池管理 Multi-Chem SBS 1.1 Compliant Gas Gauge 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 |
| BQ2060SS-E411 | 功能描述:電池管理 Multi-Chem SBS 1.1 Compliant Gas Gauge 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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