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参数资料
| 型号： | BQ27500DRZT-V120G4 |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 电源管理 |
| 英文描述： | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO12 |
| 封装： | 2.50 X 4 MM, PLASTIC, SON-12 |
| 文件页数： | 6/42页 |
| 文件大小： | 898K |
| 代理商： | BQ27500DRZT-V120G4 |
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4.1.1.15 StandbyTimeToEmpty( ): 0x1c/0x1d
4.1.1.16 MaxLoadCurrent( ): 0x1e/0x1f
4.1.1.17 MaxLoadTimeToEmpty( ): 0x20/0x21
4.1.1.18 AvailableEnergy( ): 0x22/0x23
4.1.1.19 AveragePower( ): 0x24/0x25
4.1.1.20 TimeToEmptyAtConstantPower( ): 0x26/0x27
4.1.1.21 CycleCount( ): 0x2a/0x2b
4.1.1.22 StateOfCharge( ): 0x2c/0x2d
4.1.2
EXTENDED DATA COMMANDS
bq27500
bq27501
System-Side Impedance Track Fuel Gauge
SLUS785D – SEPTEMBER 2007 – REVISED APRIL 2008
www.ti.com
The register value is updated every 1 second when the measured current is above the Deadband (3-mA
default) and is less than or equal to 2
× Initial Standby. The first and last values that meet this criteria are
not averaged in, because they may not be stable values. To approximate a 1-minute time constant, each
new StandbyCurrent( ) value is computed as follows:
StandbyCurrent( )NEW = (239/256) × StandbyCurrent( )OLD + (17/256) × AverageCurrent( ).
This read-only function returns an unsigned integer value of the predicted remaining battery life at the
standby rate of discharge, in minutes. The computation uses Nominal Available Capacity (NAC), the
uncompensated remaining capacity, for this computation. A value of 65,535 indicates battery is not being
discharged.
This read-only function returns a signed integer value, in units of mA, of the maximum load conditions.
The MaxLoadCurrent( ) is an adaptive measurement which is initially reported as the maximum load
current programmed in Initial Max Load Current. If the measured current is ever greater than Initial Max
Load Current, then MaxLoadCurrent( ) updates to the new current. MaxLoadCurrent( ) is reduced to the
average of the previous value and Initial Max Load Current whenever the battery is charged to full after
a previous discharge to an SOC less than 50%. This prevents the reported value from maintaining an
unusually high value.
This read-only function returns an unsigned integer value of the predicted remaining battery life at the
maximum load current discharge rate, in minutes. A value of 65,535 indicates that the battery is not being
discharged.
This read-only function returns an unsigned integer value of the predicted charge or energy remaining in
the battery. The value is reported in units of mWh.
This read-word function returns an signed integer value of the average power during battery charging and
discharging. A value of 0 indicates that the battery is not being discharged. The value is reported in units
of mW.
This read-only function returns an unsigned integer value of the predicted remaining operating time if the
battery is discharged at the AveragePower( ) value in minutes. A value of 65,535 indicates
AveragePower( ) = 0. The fuel gauge automatically updates TimeToEmptyatContantPower( ) based on the
AveragePower( ) value every 1 s.
This read-only function returns an unsigned integer value of the number of cycles the battery has
experienced with a range of 0 to 65,535. One cycle occurs when accumulated discharge
≥ CC Threshold.
This read-only function returns an unsigned integer value of the predicted remaining battery capacity
expressed as a percentage of FullChargeCapacity( ), with a range of 0 to 100%.
Extended commands offer additional functionality beyond the standard set of commands. They are used in
the same manner; however, unlike standard commands, extended commands are not limited to 2-byte
words. The number of commands bytes for a given extended command ranges in size from single to
multiple bytes, as specified in Table 4-5. For details on the SEALED and UNSEALED states, see
Section 4.4, Access Modes.
GENERAL DESCRIPTION
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相关代理商/技术参数 |
参数描述 |
|---|---|
| BQ27500DRZT-V130 | 功能描述:电池管理 System-Side Imped RoHS:否 制造商:Texas Instruments 电池类型:Li-Ion 输出电压:5 V 输出电流:4.5 A 工作电源电压:3.9 V to 17 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:VQFN-24 封装:Reel |
| BQ27500EVM | 功能描述:电源管理IC开发工具 BQ27500 Eval Mod RoHS:否 制造商:Maxim Integrated 产品:Evaluation Kits 类型:Battery Management 工具用于评估:MAX17710GB 输入电压: 输出电压:1.8 V |
| BQ27500-V120 | 制造商:TI 制造商全称:Texas Instruments 功能描述:System-Side Impedance Track? Fuel Gauge |
| BQ27500-V130 | 制造商:TI 制造商全称:Texas Instruments 功能描述:System-Side Impedance Track Fuel Gauge |
| BQ27500YZGR-V130 | 功能描述:电池管理 Sys-Side Impedance Track Fuel Gauge RoHS:否 制造商:Texas Instruments 电池类型:Li-Ion 输出电压:5 V 输出电流:4.5 A 工作电源电压:3.9 V to 17 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:VQFN-24 封装:Reel |
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