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MAX1736：SOT23封装、单节Li+电池充电器，配合限流型电源使用

SOT23、单节Li+电池充电器

The MAX1736 is a simple, low-cost, single-cell lithium-ion (Li+) battery charger for small hand-held applications. When accompanied by a current-limited voltage source (such as a wall cube), the MAX1736 provides simple, accurate charging and termination control for single-cell Li+ batteries. The MAX1736EUT42 is preset to a 4.2V battery regulation voltage, while the MAX1736EUT41 is preset to 4.1V. The MAX1736 initiates charging in one of four ways: battery insertion, charger power-up, battery voltage threshold, and by external manipulation of the EN pin. The device features an internal precharge current source that safely charges near-dead cells, as well as input-supply detection that shuts down the MAX1736 when the supply is removed to minimize battery current drain. The MAX1736 accepts input voltages up to 22V, making it compatible with a wide range of input supplies. It has a single control input yet offers stand-alone and microprocessor-controlled operation. The MAX1736 is packaged in a small SOT23-6 package. An evaluation kit (EV kit) is available to reduce design time.

关键特性 Small 6-Pin SOT23 Package Stand-Alone or µP-Controlled Operation 0.5% Voltage Set-Point Accuracy Lowest Power Dissipation Low 4.7V min Input Voltage Top-Off Charging to Achieve Full Battery Capacity No Inductor Required Safely Precharges Near-Dead Cells Automatic Power-Down when Input Power Removed

MAX1736：典型工作电路 应用 摇篮架充电器 数码相机 PDA及其它手持设备 自充电电池组 单节Li+电池供电便携应用 小型手持设备 无线手机

数据手册DataSheet

关键参数

开发工具

• MAX1736EVKIT

技术资料

• Important Design Considerations for Heart-Rate and Fitness Monitors
• Switch-Mode, Linear, and Pulse Charging Techniques for Li+ Battery in Mobile Phones and PDAs

质量和环境数据

• MAX1736.pdf

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