LTC3652 Solar Power Management Module

SKU: DFR0535

The LTC3652 Solar Power Management Module provides an efficient solution for harnessing solar energy with a wide input range of 7V to 30V and supports 3.7V Li-Polymer/Li-ion batteries. It offers multi-phase charging including constant current and voltage modes, ensuring optimal battery health and performance. The module incorporates Maximum Power Point Tracking (MPPT) settings to enhance solar energy conversion efficiency, available in OFF, 9V, 12V, and 18V options. Designed to output regulated power supplies at various voltages (5V, 3.3V, 9V/12V), the LTC3652 ensures high efficiency across different loads. With a comprehensive set of protection features, including overcharge, over-discharge, over-current, and reverse connection protection, it safeguards both the battery and connected devices. Operating efficiently within a temperature range of -40℃ to 85℃, the module is ideal for diverse applications requiring reliable solar power management.

Front of black circuit board with green/red connectors for solar power management-DFRobot product sku:DFR0535 image.
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  • Specification

    Parameter Details
    Solar Power Management IC LTC3652
    Solar Input Voltage (SOLAR IN) 7V~30V
    Battery Input (BAT IN) 3.7V Li-Polymer/Li-ion Battery
    Charge Current (USB/SOLAR IN) 2A Max Trickle Charging, Constant Current, Constant Voltage Three Phases Charging
    Charge Cutoff Voltage (USB/SOLAR IN) 4.2V±1%
    MPPT Setting Voltages OFF/9V/12V/18V
    USB IN Voltage 5V
    Regulated Power Supply OUT1=5V 1.5A; OUT2=3.3V 1A; OUT3=9V/12V 0.5A
    Regulated Power Supply Efficiency (3.7V battery IN) OUT1: 90%@10%Load, 86%@50%Load, 80%@90%Load
    OUT2: 96%@10%Load;92%@50%Load;87%@90%Load
    OUT3 (9V OUT): 88%@10%Load, 89%@50%Load, 86%@90%Load
    OUT3 (12V OUT): 87%@10%Load, 88%@50%Load, 82%@90%Load
    USB Charge Efficiency 84%@1A;74%@1.8A
    Solar Charge Efficiency (18V SOLAR IN) 78%@1A;72%@1.8A
    Maximum Quiescent Current Overall: <3 mA
    OUT1: <760 uA
    OUT2: <560 uA
    OUT3: <1.72 mA
    Protections BAT IN: Over Charge Voltage (4.3V)/Over Discharge Voltage (2.4V) /Over Current (3A) /Reverse Connection Protection
    OUT1-OUT3/USB OUT: Short Circuit/Over Current/Over Heat Protection
    SOLAR IN: Backflow/Reverse Connection Protection
    Operation Temperature -40℃~85℃
    Dimension 78.0mm*68.0mm

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