The DFRobot Solar Power Manager 5V is a compact and efficient solar power management module designed for 5V solar panels. Featuring MPPT (Maximum Power Point Tracking) and dual charging inputs (solar/USB), it provides up to 900mA charging current for 3.7V Li-ion/Li-Po batteries. With a regulated 5V 1A output, this module is ideal for powering low-power IoT systems, solar monitoring devices, solar-powered robots, and environmental sensors.
Key Features
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MPPT algorithm maximizes solar panel charging efficiency
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Supports 5V solar panels up to 10W
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Dual input charging via solar or USB (900mA max)
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5V 1A regulated output with ON/OFF control
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Compatible with 3.7V Li-ion/LiPo batteries
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Supports batteries with or without built-in protection circuits
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Comprehensive protection functions for battery, solar input, and output
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USB port with ESD protection
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Compact size: 33.0mm × 63.0mm
Applications
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Solar power banks
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Smart solar-powered environmental monitors
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Solar-powered robots and street lights
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Low-power embedded systems and IoT devices
Specifications
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Power Management IC: CN3165
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Input Voltage (SOLAR IN): 4.4V ~ 6V
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Battery Type: 3.7V Li-ion/LiPo
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Charging Current: Up to 900mA
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Charging Method: Trickle, Constant Current, Constant Voltage
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Charging Cutoff Voltage: 4.2V ±1%
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Regulated Output: 5V 1A
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Efficiency (Regulated 5V Output): 86% @ 50% Load
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Efficiency (USB/Solar Charging): 73% @ 3.7V 900mA
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Quiescent Current: <1mA
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Operating Temperature: -40°C ~ 85°C
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Dimensions: 33.0mm × 63.0mm
Protection Features
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Battery Input (BAT IN):
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Overcharge protection
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Overdischarge protection
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Overcurrent protection
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Reverse connection protection
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5V Output & USB Output:
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Short circuit protection
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Overcurrent protection
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Overheat protection
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Solar Input: Reverse connection protection
Package Includes
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1 × Solar Power Manager 5V
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1 × 2.54mm Black Jumper
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4 × M3×10mm Nylon Pillars
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4 × M3×5mm Stainless Steel Screws
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1 × 14×14×7mm Black Aluminum Cooling Fin
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1 × 14×14×0.5mm Thermal Conductive Silicone Pad