- BQ24202DGNR
- 参考价格:
- 发布者:凌晔科技
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查看此店铺所有供求信息 联系人:陈小姐 电话:13544017528 手机:13544017528 地址:广东省深圳市福田区中航路华强广场C座13L 服务: 价格: 综合: 营业时间:全年营业 QQ/微信/Skype: |
详细信息
品牌:TI德州
封装:MSOP-8
批号:18+
数量*:298000
描述: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.
产品特性
Designed Specifically to Work With Current-Limited Wall Supplies
Ideal for Low Dropout Charger Design for Single-Cell Li-Ion Packs With Coke or Graphite Anodes
Integrated PowerFET for 500 mA
Integrated Voltage Regulation With 0.5% Accuracy
Battery Insertion and Removal Detection
Charge Termination by Minimum Current and Time
Pre-Charge Conditioning With Safety Timer
Sleep Mode for Low-Power Consumption
Charge Status Output for LED or Host Processor Interface Indicates
Charge-in-Progress, Charge Completion, and Fault Conditions
Optional Temperature Monitoring Before and During Charge
Small, 8-Pin Power-Pad MSOP Package
深圳市凌晔科技有限公司
广东省深圳市福田区华强广场C座13L
TEL:13544017528
qq: 869030400
E-mail:869030400@qq.com
封装:MSOP-8
批号:18+
数量*:298000
描述: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.
产品特性
Designed Specifically to Work With Current-Limited Wall Supplies
Ideal for Low Dropout Charger Design for Single-Cell Li-Ion Packs With Coke or Graphite Anodes
Integrated PowerFET for 500 mA
Integrated Voltage Regulation With 0.5% Accuracy
Battery Insertion and Removal Detection
Charge Termination by Minimum Current and Time
Pre-Charge Conditioning With Safety Timer
Sleep Mode for Low-Power Consumption
Charge Status Output for LED or Host Processor Interface Indicates
Charge-in-Progress, Charge Completion, and Fault Conditions
Optional Temperature Monitoring Before and During Charge
Small, 8-Pin Power-Pad MSOP Package
深圳市凌晔科技有限公司
广东省深圳市福田区华强广场C座13L
TEL:13544017528
qq: 869030400
E-mail:869030400@qq.com
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