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数据: 具有集成 LDO 的 bq27520-G4 系统 Impedance Track™ 电量监测计 数据表 (Rev. B)
德州仪器(TI)生活控制计锂离子电池组的电量监测。此器件只需很少的系统微控制器固件开发。此电量监测计位于系统主板上,可管理嵌入式电池(不可拆卸)或可拆卸电池组。
此电量监测计使用获得专利的Impedance Track™算法来进行电量监测,可提供剩余电池电量(mAh),充电状态(%),续航时间(最小值),电池电压(mV),温度( °C)和运行状况(%)等信息。
进行电池电量监测时,只需将PACK +(P +),PACK-(P-)以及可选的热敏电阻(T)连接本器件使用一个15焊球NanoFree™(DSBGA)封装,其标称尺寸为2610×1956μm,引线间距为0.5mm。该器件非常适用于空间受限类应用。
所有商标均为其各自所有者的财产。
Number of Series Cells |
Cell Chemistry |
Battery Capacity (Max) (mAh) |
Communication Interface |
Battery Capacity (Min) (mAh) |
External Capacity Indication |
Implementation |
Gas Gauge Algorithm |
Cell Balancing |
Features |
Operating Temperature Range (C) |
Pin/Package |
BQ27520-G4 | BQ27220 | BQ27320 | BQ27426 | BQ27542-G1 | BQ27546-G1 | BQ27621-G1 | BQ35100 |
---|---|---|---|---|---|---|---|
Single Cell | Single Cell | Single Cell | Single Cell | Single Cell | Single Cell | Single Cell | 2-4 Cells >4 Cells Single Cell |
Li-Ion/Li-Polymer | Li-Ion/Li-Polymer | Li-Ion/Li-Polymer | Li-Ion/Li-Polymer | Li-Ion/Li-Polymer | Li-Ion/Li-Polymer | Li-Ion/Li-Polymer | Primary Lithium |
32000 | 29000 | 29000 | 14000 | 32000 | 32000 | 32000 | 32000 |
I2C | I2C | I2C | I2C | HDQ I2C | HDQ I2C | I2C | I2C |
100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 |
None | None | None | None | None | None | None | None |
System | Pack System | Pack System | System | Pack | Pack | System | Pack System |
Impedance Track | CEDV | CEDV | Impedance Track | Impedance Track | Impedance Track | Dynamic Voltage Correlation | Primary |
N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A |
N/A | N/A | N/A | N/A | SHA-1 Authentication | SHA-1 Authentication | No Sense Resistor Required | End of Service |
-40 to 85 | -40 to 85 | -40 to 85 | -40 to 85 | -40 to 85 | -40 to 85 | -40 to 85 | -40 to 85 |
15DSBGA | 9DSBGA | 15DSBGA | 9DSBGA | 12SON | 15DSBGA | 9DSBGA | 14TSSOP |