BQ24200DGNTIBattery Charge Management 500mA, 4.2V Li-Ion Charger for Current-Limited App. w/Temp Sense in MSOP-8 Linear Charge Management Li-Ion/Li-Pol 500mA 4.1V 8Pin HVSSOP EP T/R
￥
31.81
显示的图像仅供参考，应从产品数据表中获得准确的规格。
BQ24200DGNTI
制造商:
TI
制造商型号#:
BQ24200DGN
百芯编号#:
CM35105458
价格(CNY):
￥
31.81
百芯库存:
213
个
库存地点:
可供应量:
157
个在库
此为供应商库存，需要与销售确认
产品类别:
电池管理,芯片
产品描述:
Battery Charge Management 500mA, 4.2V Li-Ion Charger for Current-Limited App. w/Temp Sense in MSOP-8 Linear Charge Management Li-Ion/Li-Pol 500mA 4.1V 8Pin HVSSOP EP T/R
The bq2420x series are simple Li-Ion linear charge management devices targeted at low-cost and space limited charger applications. The bq2420x series offer integrated powerFET, high-accuracy voltage regulation, temperature monitoring, charge status, and charge termination, in a single monolithic device.
The bq2420x is designed to work with a current-limited wall-mount transformer and therefore does not provide any current regulation. However, these devices offer a fixed internal current limit to prevent damage to the internal powerFET. A time-limited pre-conditioning phase is provided to condition deeply discharged cells. Once the battery reaches the charge voltage, the high accuracy voltage regulation loop takes over and completes the charge cycle. Charge is terminated based on minimum current. An internal charge timer provides a backup safety for charge termination.
Other standard features include an automatic sleep mode activated when VCC falls below the battery voltage falls below the VRCH threshold.
In addition to the standard features, the core product provides two additional enhancements: temperature monitoring and status display. The temperaturesense circuit continuously measures battery temperature using an external thermistor and inhibits charge until the battery temperature is within the user-defined thresholds. The STAT pin indicates three conditions of operation of the charger. These conditions are _charge-in-progress, charge complete,_ and _fault_. This output can be used to drive an LED or an interface to a microcontroller.
