BQ29330
- 2-Series, 3-Series, or 4-Series Cell Protection Control
- Can Directly Interface with the bq803x-Based Gas Gauge Family
- Watchdog and POR for the Host
- Provides Individual Cell Voltages and Battery Voltage to
Battery Management Host - Capable of Operation With 5-mΩ Sense Resistor Integrated
Cell Balancing Drive - I2C Compatible User Interface Allows Access to
Battery Information - Programmable Threshold and Delay for Overload Short Circuit
in Discharge and Short Circuit in Charge - NMOS FET Drive for Charge and Discharge FETs
- Host Control can Initiate Sleep and Ship Power Modes
- Integrated 2.5-V, 16-mA LDO
- Integrated 3.3-V, 25-mA LDO
- Supply Voltage Range from 4.5 V to 28 V
- Low Supply Current of 100 µA Typical
The bq29330 is a 2-series, 3-series, and 4-series cell lithium-ion battery pack full-protection analog front end (AFE) IC that incorporates a 2.5-V, 16-mA and 3.3-V, 25-mA low dropout regulator (LDO). The bq29330 also integrates an I2C-compatible interface to extract battery parameters such as battery voltage, individual cell voltages, and control output status. Other parameters such as current protection thresholds and delays can also be programmed into the bq29330 to increase the flexibility of the battery management system.
The bq29330 provides safety protection for overload, short circuit in charge, and short circuit in discharge conditions and can also provide cell overvoltage, battery overvoltage and battery undervoltage protection with the battery management host. In overload, short circuit in charge and short circuit in discharge conditions, the bq29330 turns off the FET drive autonomously, depending on the internal configuration setting. The communications interface allows the host to observe and control the status of the bq29330, enable cell balancing, enter different power modes, set current protection levels, and set the blanking delay times.
Cell balancing of each cell can be performed via a cell bypass path integrated into the bq29330, which can be enabled via the internal control register accessible via the I2C-compatible interface. The maximum bypass current is set via an external series resistor and internal FET on resistance (typ. 400 Ω).
技术文档
类型 | 标题 | 下载最新的英语版本 | 日期 | |||
---|---|---|---|---|---|---|
* | 数据表 | 2, 3-, 4-Cell Lithium-Ion or Lithium-Polymer Battery Protection AFE 数据表 (Rev. E) | 2012年 3月 19日 | |||
EVM 用户指南 | bq20z90EVM-001 SBS1.1 Impedance Track(TM) Technology (Rev. A) | 2013年 10月 4日 | ||||
应用手册 | Fast Cell Balancing Using External MOSFET (Rev. A) | 2009年 1月 26日 | ||||
用户指南 | bq20z70-V160 + bq29330, bq20z75 TRM | 2008年 5月 23日 | ||||
应用手册 | bq29330 External Short Circuit Protection | 2007年 8月 22日 |
设计和开发
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封装 | 引脚 | CAD 符号、封装和 3D 模型 |
---|---|---|
TSSOP (DBT) | 30 | Ultra Librarian |
订购和质量
- RoHS
- REACH
- 器件标识
- 引脚镀层/焊球材料
- MSL 等级/回流焊峰值温度
- MTBF/时基故障估算
- 材料成分
- 鉴定摘要
- 持续可靠性监测
- 制造厂地点
- 封装厂地点
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