參數(shù)資料
型號： bq2945
廠商： Benchmark Technology Group
英文描述： Gas Gauge IC with SMBus Interface(Gas Gauge芯片（帶SMBus 接口）)
中文描述： 氣體計IC，帶有SMBus接口（電量監(jiān)測計芯片（帶的SMBus接口））
文件頁數(shù)： 22/32頁
文件大?。?/td> 256K
代理商： BQ2945
22
bq2945
Alarm Bits
Set When:
Bit Name
Reset When:
OVER_CHARGED_ALARM
The bq2945 detects a
T/
t or cur-
rent taper termination. (
Note:
T/
t and current taper are valid
charge terminations
.)
The bq2945 detects an over-current,
over-voltage, over-temperature,
T/
t, or current taper condition
during charge.
The bq2945 detects that its internal
temperature is greater than the pro-
grammed value.
The bq2945 determines that it has
supplied all the charge that it can
without being damaged (Voltage <
EDVF).
A discharge occurs or when the
T/
t or current taper termination
condition ceases during charge.
TERMINATE_CHARGE_ALARM
A discharge occurs or when all condi-
tions causing the event cease.
OVER_TEMP_ALARM
Internal temperature falls below
50°C.
TERMINATE_DISCHARGE_ALARM
Voltage > EDVF signifies that the
battery has reached a state of charge
sufficient for it to once again safely
supply power.
Either the value set by the Remain-
ingCapacityAlarm function is lower
than the Remaining Capacity or the
RemainingCapacity is increased by
charging.
REMAINING_CAPACITY_ALARM
The bq2945 detects that the Remain-
ingCapacity is less than that set by
the RemainingCapacityAlarm func-
tion.
REMAINING_TIME_ALARM
The bq2945 detects that the esti-
mated remaining time at the present
discharge rate is less than that set
by the RemainingTimeAlarm func-
tion.
Status Bits
Set When:
The bq2945 has completed a “l(fā)earn”
cycle.
The bq2945 determines that it is not
being charged.
The bq2945 determines a valid
charge termination or a maximum
overcharge state.
bq2945 determines that it has
supplied all the charge that it can
without being damaged.
Either the value set by the Remain-
ingTimeAlarm function is lower than
the AverageTimeToEmpty or a valid
charge is detected.
Bit Name
Reset When:
INITIALIZED
Battery detects that power-on or
user-initiated reset has occurred.
Battery detects that it is being
charged.
DISCHARGING
FULLY_CHARGED
RM discharges below 95% of the full
charge percentage.
FULLY_DISCHARGED
RelativeStateOfCharge is greater
than or equal to 20%
Table 9. BatteryStatus Bits
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
BQ294502 制造商:TI 制造商全稱:Texas Instruments 功能描述:Overvoltage Protection for 2-Series and 3-Series Cell Li-Ion Batteries
BQ294502DRVR 功能描述:電池管理 Overvltg Prot Device 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
BQ294502DRVT 功能描述:電池管理 Overvltg Prot Device 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
BQ294502EVM-033 功能描述:電源管理IC開發(fā)工具 bq294502 Eval Mod RoHS:否 制造商:Maxim Integrated 產(chǎn)品:Evaluation Kits 類型:Battery Management 工具用于評估:MAX17710GB 輸入電壓: 輸出電壓:1.8 V
BQ294504 制造商:TI 制造商全稱:Texas Instruments 功能描述:Overvoltage Protection for 2-Series and 3-Series Cell Li-Ion Batteries
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