- 制造厂商：TI
- 产品类别：电源管理
- 技术类目：电池管理 IC - 电池保护器
- 功能描述：具有 30V（最大值）Vin 和 5.5V LDO 输出的充电器前端保护 IC
- 点击这里打开及下载BQ24300的技术文档资料
- TI代理渠道，提供当日发货、严格的质量标准，满足您的目标价格
The bq24300 and bq24304 are highly integrated circuits designed to provide protection to Li-ion batteries from failures of the charging circuit. The IC continuously monitors the input voltage, the input current, and the battery voltage. The device operates like a linear regulator: for voltages up to the Input Overvoltage threshold, the output is held at 5.5V (bq24300), 5.0V (bq24305) or 4.5V (bq24304). In case of an input overvoltage condition, if the overvoltage condition persists for more than a few microseconds, the IC removes power from the charging circuit by turning off an internal switch. In the case of an overcurrent condition, it limits the current to a safe value for a blanking duration before turning the switch off. Additionally, the IC also monitors its own die temperature and switches off if it becomes too hot.
The IC also offers optional protection against reverse voltage at the input with an external P-channel MOSFET.
- Provides Protection for Three Variables:
- Input Overvoltage
- Input Overcurrent with Current Limiting
- Battery Overvoltage
- 30V Maximum Input Voltage
- Optional Input Reverse Polarity Protection
- High Immunity Against False Triggering Due to Voltage Spikes
- Robust Against False Triggering Due to Current Transients
- Thermal Shutdown
- Enable Function
- Small 2 mm × 2 mm 8-Pin SON Package
- LDO Mode Voltage Regulation Options:
- 5.5V on bq24300
- 4.5V on bq24304
- 5.0V on bq24305
- APPLICATIONS
- Bluetooth Headsets
- Low-Power Handheld Devices
- Function
- Charger Front-End Protection
- Number of series cells (Min)
- 1
- Number of series cells (Max)
- 1
- Features
- Overcurrent protection
- Typical operating current (Typ) (uA)
- 340
- Rating
- Catalog
- Vin (Max) (V)
- 30
BQ24300的完整型号有：BQ24300DSGR、BQ24300DSGT，以下是这些产品的关键参数及官网采购报价：
BQ24300DSGR，工作温度：0 to 125，封装：WSON (DSG)-8，包装数量MPQ：3000个，MSL 等级/回流焊峰值温度：Level-2-260C-1 YEAR，引脚镀层/焊球材料：NIPDAU，TI官网BQ24300DSGR的批量USD价格：.277（1000+）
BQ24300DSGT，工作温度：0 to 125，封装：WSON (DSG)-8，包装数量MPQ：250个，MSL 等级/回流焊峰值温度：Level-2-260C-1 YEAR，引脚镀层/焊球材料：NIPDAUAG，TI官网BQ24300DSGT的批量USD价格：.332（1000+）
TIDA-00034 — 过压和过流保护 IC 与锂离子充电器前端保护 IC 参考设计
该参考设计采用 bq24300 和 bq24304，是一款高度集成的设计，可保护锂离子电池免受充电电路故障的影响。IC 持续监视输入电压、输入电流和电池电压。该设计的工作原理类似于线性稳压器：对于达到输入过压阈值的电压，输出将维持在 5.5V (bq24300)、5.0V (bq24305) 或 4.5V (bq24304)。在输入过压情况下，如果过压条件持续时间超过几微秒，则该 IC 解决方案将通过关闭内部开关来移除充电电路的电源。在过流情况下，其会在关闭开关前的消隐时间段内将电流限定在某一安全值。此外，该 IC (...)
