The LM3658 is a single chip charger IC designed for handheld applications. It can safely charge and maintain a single cell Li-Ion/Polymer battery operating from an AC wall adapter or USB power source. Input power source selection of USB/AC is automatic. With both power sources present, the AC power source has priority. Charge current is programmed through an external resistor when operating from an AC wall adapter allowing charge currents from 50 mA to 1000 mA. When the battery is charged using USB power, charge currents of 100 mA or 500 mA are pin-selectable. The termination voltage is controlled to within ±0.35% of 4.2V.

The LM3658 requires few external components and integrates internal power FETs, reverse current protection and current sensing. The internal power FETs are thermally regulated to obtain the most efficient charging rate for a given ambient temperature.

The LM3658 operates in five modes: pre-qualification mode, constant-current mode, constant-voltage mode, top-off mode and maintenance mode. Additionally, the charger IC operates as a linear regulator in “LDO mode”, when the AC wall adapter is connected and no battery is present. Optimal battery management is obtained through thermal regulation, battery temperature measurement and multiple safety timers. The LM3658 provides two open-drain outputs for LED status indication or connection to GPIOs.

• Number of series cells
• 1
• Charge current (Max) (A)
• 1
• Operating Vin (Max) (V)
• 6
• Cell chemistry
• Li-Ion/Li-Polymer
• Battery charge voltage (Min) (V)
• 4.2
• Battery charge voltage (Max) (V)
• 4.2
• Absolute Vin (safety rating) (Max) ((V))
• 6.5
• Control interface
• Standalone (RC-Settable)
• Features
• BAT temp thermistor monitoring (hot/cold profile), IC thermal regulation
• Operating Vin (Min) (V)
• 4.5
• Rating
• Catalog

LM3658的完整型号有：LM3658SD-A/NOPB、LM3658SD-B/NOPB、LM3658SD/NOPB、LM3658SDX-A/NOPB、LM3658SDX-B/NOPB、LM3658SDX/NOPB，以下是这些产品的关键参数及官网采购报价：

LM3658SD-A/NOPB，工作温度：-40 to 85，封装：WSON (DSC)-10，包装数量MPQ：1000个，MSL 等级/回流焊峰值温度：Level-1-260C-UNLIM，引脚镀层/焊球材料：SN，TI官网LM3658SD-A/NOPB的批量USD价格：0.552（1000+）

LM3658SD-B/NOPB，工作温度：-40 to 85，封装：WSON (DSC)-10，包装数量MPQ：1000个，MSL 等级/回流焊峰值温度：Level-1-260C-UNLIM，引脚镀层/焊球材料：SN，TI官网LM3658SD-B/NOPB的批量USD价格：0.552（1000+）

LM3658SD/NOPB，工作温度：-40 to 85，封装：WSON (DSC)-10，包装数量MPQ：1000个，MSL 等级/回流焊峰值温度：Level-1-260C-UNLIM，引脚镀层/焊球材料：SN，TI官网LM3658SD/NOPB的批量USD价格：0.552（1000+）

LM3658SDX-A/NOPB，工作温度：-40 to 85，封装：WSON (DSC)-10，包装数量MPQ：4500个，MSL 等级/回流焊峰值温度：Level-1-260C-UNLIM，引脚镀层/焊球材料：SN，TI官网LM3658SDX-A/NOPB的批量USD价格：0.46（1000+）

LM3658SDX-B/NOPB，工作温度：-40 to 85，封装：WSON (DSC)-10，包装数量MPQ：4500个，MSL 等级/回流焊峰值温度：Level-1-260C-UNLIM，引脚镀层/焊球材料：NIPDAU，TI官网LM3658SDX-B/NOPB的批量USD价格：0.46（1000+）

LM3658SDX/NOPB，工作温度：-40 to 85，封装：WSON (DSC)-10，包装数量MPQ：4500个，MSL 等级/回流焊峰值温度：Level-1-260C-UNLIM，引脚镀层/焊球材料：NIPDAU，TI官网LM3658SDX/NOPB的批量USD价格：0.46（1000+）

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The LM3658 is a single chip charger IC designed for hand-held applications. The LM3658 can safely charge and maintain a single cell Li-Ion/Polymer battery operating from an AC wall adapter or the USB power source. Input power source selection of USB/AC is automatic. With both power sources present, (...)

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Recommended tool:
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The LM3658 is a single chip charger IC designed for hand-held applications. The LM3658 can safely charge and maintain a single cell Li-Ion/Polymer battery (...)