MAX1758EVKIT

 

器件号	Replacement	Explanation

说明

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The MAX1757/MAX1758 evaluation kits (EV kits) are assembled and tested PC boards that implement a step-down, switching lithium-ion (Li+) battery charger. The MAX1757 EV kit can be set to charge 1- to 3-series cells, and the MAX1758 EV kit can be set to charge 1- to 4-series cells. The cell voltage can be set between 4.0V and 4.4V using standard 1% resistors while maintaining 1% overall regulation voltage accuracy. Three LEDs indicate the charging status.

The MAX1757/MAX1758 EV kits detect faulty cells and terminate charging. Two capacitors are used to set the charge termination, prequalification, and fault timeout periods. A user-supplied thermistor may be connected to either EV kit to monitor battery temperature and suspend charging for over-/undertemperature conditions.

关键特性

• Complete Li+ Charging Solution up to 3-Series Cells (MAX1757) and 4-Series Cells (MAX1758)
• 1.5A Battery-Charging Current
• Low Heat/High Efficiency
• 300kHz PWM Operation
• Up to 14V Input Voltage Range (MAX1757)
• Up to 28V Input Voltage Range (MAX1758)
• 28-Pin SSOP Package
• Surface-Mount Construction
• Fully Assembled and Tested

应用

• 台式摇篮架充电器
• 手持式仪表(PDA、掌上电脑)
• Li+电池组
• 笔记本电脑
• PDA