LT3652HVIMSE#PBF

LINEAR TECHNOLOGY  LT3652HVIMSE#PBF  芯片, 电池充电器, 2A, 功率跟踪, 12MSOP

The is a Power Tracking Battery Charger provides a constant-current/constant-voltage charge characteristic with maximum charge current externally programmable up to 2A. The charger employs a 3.3V float voltage feedback reference, so any desired battery float voltage up to 18V can be programmed with a resistor divider. It employs an input voltage regulation loop, which reduces charge current if the input voltage falls below a programmed level, set with a resistor divider. When the LT3652HV is powered by a solar panel, the input regulation loop is used to maintain the panel at peak output power. The LT3652 can be configured to terminate charging when charge current falls below 1/10 of the programmed maximum C/10. Once charging is terminated, the LT3652HV enters a low-current 85µA standby mode. An auto-recharge feature starts a new charging cycle if the battery voltage falls 2.5% below the programmed float voltage.

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Input supply voltage regulation loop for peak power tracking in MPPT solar applications

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Wide input voltage range 4.95 to 32V, 40V absolute maximum

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Up to 2A programmable charge current

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User selectable termination C/10 or on-board termination timer

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Resistor programmable float voltage up to 18V

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Parallel able for higher output current

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1MHz Fixed frequency

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0.5% Float voltage reference accuracy

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5% Charge current accuracy

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2.5% C/10 detection accuracy

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Binary-coded open-collector status pins