LTC4001EUF#PBF
数据手册.pdfLINEAR TECHNOLOGY LTC4001EUF#PBF 芯片, 锂电池充电控制器, 同步降压, 2A
The is a 2A Li-ion Battery Charger intended for 5V wall adapters. It utilizes a 1.5MHz synchronous buck converter topology to reduce power dissipation during charging. Low power dissipation, an internal MOSFET and sense resistor allow a physically small charger that can be embedded in a wide range of handheld applications. The LTC4001 includes complete charge termination circuitry, automatic recharge and a ±1% 4.2V float voltage. Input short-circuit protection is included so no blocking diode is required. Battery charge current, charge timeout and end-of-charge indication parameters are set with external components. Additional features include shorted cell detection, temperature qualified charging and overvoltage protection.
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- Low power dissipation
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- No external MOSFETs
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- Sense resistor or blocking diode required
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- Remote sensing at battery terminals
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- Programmable charge termination timer
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- Preset 4.2V float voltage with ±0.5% accuracy
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- Programmable charge current detection/termination
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- Automatic recharge
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- Thermistor input for temperature qualified charging
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- Compatible with current limited wall adapters