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(cè)計(jì)芯片）
文件頁(yè)數(shù)： 9/45頁(yè)
文件大小： 457K
代理商： BQ2060
This means that a 0.39% reduction of RM will be made
12.8 times per day to achieve the desired 5% per day re-
duction at 35
°
C.
Figure 3 illustrates how the self-discharge estimate al-
gorithm adjusts RemainingCapacity() vs. temperature.
Light Discharge or Suspend Current
Compensation
The bq2060 can be configured in two ways to compen-
sate for small discharge currents that produce a signal
below the digital filter. First, the bq2060 can decrement
RM and DCR at a rate determined by the value stored
in
Light Discharge Current
EE 0x2b when it detects no
discharge activity and the SMBC and SMBD lines are
high.
Light Discharge Current
has a range of 44
μ
A to
11.2mA.
Alternatively, the bq2060 can be configured to disable
the digital filter for discharge when the SMBC and
SMBD lines are high. In this way, the digital filter will
not mask the leakage current signal. The bq2060 is con-
figured in this mode by setting the NDF bit in
Control
Mode
.
Midrange Capacity Corrections
The bq2060 applies midrange capacity corrections when
the VCOR bit is set in
Pack Configuration
. The bq2060
adjusts RM to the associated percentage at three differ-
ent voltage levels VOC25, VOC50, and VOC75. The VOC
values represent the open circuit battery voltage at
which RM corresponds to the associated state of charge
for each threshold.
Threshold
VOC25
VOC50
VOC75
Associated State of Charge
25%
50%
75%
For the midrange corrections to occur, the temperature
must be in the range of 19
°
C to 31
°
C inclusive and the
Current() and AverageCurrent() must both be between
–64mA and 0. The bq2060 makes midrange corrections
as shown in Table5.
Charge Control
Charging Voltage and Current Broadcasts
The bq2060 supports SBS charge control by broadcasting
the ChargingCurrent() and ChargingVoltage() to the
Smart Charger address. The bq2060 broadcasts the re-
quests every 10s. The bq2060 updates the values used in
the charging current and voltage broadcasts based on the
battery’s state of charge, voltage, and temperature. The
fast-charge rate is programmed in
Fast-Charging Current
EE 0x1a - 0x1b while the charge voltage is programmed in
Charging Voltage
EE 0x0a-0x0b.
The bq2060 internal charge control is compatible with
popular rechargeable chemistries.
charge-termination techniques include a change in tem-
perature over a change in time (
T/
t) and current
taper, for nickel-based and Li-Ion chemistries, respec-
tively.
The bq2060 also provides pre-charge qualifica-
tion and a number of safety charge suspensions based
on current, voltage, temperature, and stateof charge.
T he primary
Alarm Broadcasts to Smart Charger and Host
If any of the bits 8–15 in BatteryStatus() is set, the
bq2060 broadcasts an AlarmWarning() message to the
Host address. If any of the bits 12–15 in BatteryStatus()
are set, the bq2060 also sends an AlarmWarning() mes-
sage to the Smart Charger address. The bq2060 repeats
the AlarmWarning() message every 10s until the bits are
cleared.
Pre-Charge Qualification
The bq2060 sets ChargingCurrent() to the pre-charge
rate as programmed in
Pre-C harge C urrent
E E
0x1e-0x1f under thefollowing conditions:
9
Condition
Result
Voltage()
≥
VOC75 and RelativeStateOfCharge()
≤
63%
RelativeStateOfCharge()
→
75%
< VOC75 and RelativeStateOfCharge()
≥
87%
RelativeStateOfCharge()
→
75%
≥
VOC50 and RelativeStateOfCharge()
≤
38%
RelativeStateOfCharge()
→
50%
<VOC50 and RelativeStateOfCharge()
≥
62%
RelativeStateOfCharge()
→
50%
≥
VOC25 and RelativeStateOfCharge()
≤
13%
RelativeStateOfCharge()
→
25%
< VOC25 and RelativeStateOfCharge()
≥
37%
RelativeStateOfCharge()
→
25%
Table 5. Midrange Corrections
bq2060
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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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