ISL6298

The ISL6298 is an integrated single-cell Li-ion or Li-polymer battery charger optimized for low current applications. The targeted applications include mini-disk (MD) players, Blue Tooth headsets, or other applications that use low-capacity battery cells.

The ISL6298 is a linear charger that charges the battery in a CC/CV (constant current/constant voltage) profile. The charge current is programmable with an external resistor up to 450mA during the CC phase. Once the battery voltage reaches 4.2V (or 4.1V), the charger enters CV mode and the charge current starts to reduce. When the charger current drops to a user-programmable threshold, the charger indicates the end-of-charge with a STATUS pin. The charger does not actually terminate until a user-programmable total fast charge time is reached. If the battery voltage drops to a recharge threshold after termination, the charger will recharge the battery to its full capacity. The charger preconditions the battery with 20% of the programmed CC current if the battery voltage is below 2.8V. The total precharge time is limited to 1/8 of the total fast charge time.

The ISL6298 features charge current thermal foldback to guarantee safe operation when the printed circuit board is space-limited for thermal dissipation. Additional features include an NTC thermistor interface for monitoring the ambient temperature, the ability to disable the time limit of the fast charge, an FAULT indication, and a thermally enhanced QFN or DFN package.

ISL6298 特点

• Complete Charger for Single-Cell Li-ion Batteries
• Integrated Pass Element and Current Sensor
• No External Blocking Diode Required
• 1% Voltage Accuracy
• Programmable Current Limit up to 450mA
• Programmable End-of-Charge Current
• Preconditioning with 20% Fast Charge Current
• 10% Accuracy at 250mA
• Charge Current Thermal Foldback
• NTC Thermistor Interface for Battery Temperature Monitor
• User Programmable Safety Timer
• Ambient Temperature Range: -20°C to 70°C
• Thermally-Enhanced QFN Packages
• Pb-Free Available (RoHS Compliant)

ISL6298 应用

• MD Players, Blue-Tooth Headsets and MP3 Players
• Portable Instruments
• PDAs, Cell Phones and Smart Phones
• Stand-Alone Chargers

ISL6298 芯片订购指南

芯片型号	产品状态	温度范围	封装尺寸图	潮湿敏感度等级MSL	美元价格US $
ISL6298-2CR3Z	量产	See Datasheet	10 Ld DFN	3	1.2
ISL6298-2CR3Z-T	量产	See Datasheet	10 Ld DFN T+R	3	1.2
ISL6298-2CR4Z	量产	See Datasheet	16 Ld QFN	3	1.2
ISL6298-2CR4Z-T	量产	See Datasheet	16 Ld QFN T+R	3	1.2
ISL6298CR4Z	量产	See Datasheet	16 Ld QFN	3	价格录入中
ISL6298CR4Z-T	量产	See Datasheet	16 Ld QFN T+R	3	价格录入中
ISL6298EVAL1	量产		评估板	N/A	价格录入中
ISL6298EVAL2	量产		评估板	N/A	价格录入中
ISL6298-1CR4Z	Coming Soon	民用级	16 Ld QFN	3	价格录入中
ISL6298-1CR4Z-T	Coming Soon	民用级	16 Ld QFN T+R	3	价格录入中

ISL6298 应用技术支持与电子电路设计开发资源下载

1. ISL6298 数据资料 datatSheet 下载.PDF
2. Power 电源管理器件产品选型指南 . pdf