DFRobot Solar Power Manager Module for 9V/12V/18V Panels - MPPT Charger w/ 5V/3.3V/9V/12V Outputs
DFRobot Solar Power Manager Module for 9V/12V/18V Panels - MPPT Charger w/ 5V/3.3V/9V/12V Outputs - Image 2
DFRobot Solar Power Manager Module for 9V/12V/18V Panels - MPPT Charger w/ 5V/3.3V/9V/12V Outputs - Image 3
SKU: SENS-2947
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DFRobot Solar Power Manager Module for 9V/12V/18V Panels - MPPT Charger w/ 5V/3.3V/9V/12V Outputs

₹4,199.00 (Inclusive of all taxes)
Out of Stock

The DFRobot Solar Power Manager is an embedded MPPT power management module designed for IoT and renewable energy projects. It accepts 7-30V solar panel input or USB/DC adapter charging to power a 3.7V Li-ion battery and provides three individually controllable, regulated DC outputs (5V 1.5A, 3.3V 1A, and 9V/12V 0.5A) for powering microcontrollers, sensors, and low-power devices.

Features

  • MPPT (Maximum Power Point Tracking) algorithm maximizes solar panel efficiency with selectable 9V, 12V, or 18V tracking points.
  • Triple regulated DC-DC outputs: 5V @ 1.5A, 3.3V @ 1A, and a selectable 9V or 12V @ 0.5A, each with individual ON/OFF control.
  • Wide 7V to 30V solar input range supports common 9V, 12V, and 18V panels; also charges via 5V USB or DC adapter up to 2A.
  • Comprehensive protection suite includes Li-ion battery protection, reverse polarity protection, and output over-current/short-circuit/over-temperature safeguards.
  • High-efficiency design using multi-layer ceramic capacitors (MLCC) with efficiency up to 92% on the 3.3V output.

Out of stock

Description

Based on the LTC3652 solar power management IC, this module implements a constant-voltage MPPT algorithm to extract maximum power from photovoltaic panels, optimizing energy harvest for off-grid applications. It functions as a complete solar charge controller and power distribution hub, integrating battery charging, voltage regulation, and system protection into a single compact board.

The module is engineered for stability and durability in environmental monitoring and IoT deployments, with an operating temperature range of -40°C to +85°C. Its three isolated DC-DC converters allow direct powering of mixed-voltage logic systems (e.g., 5V Arduino, 3.3V ESP32, and 9V/12V peripherals) from a single 3.7V Li-ion or Li-polymer battery, simplifying solar-powered system design.

Key Features

  • MPPT Solar Charger with selectable voltage tracking (OFF/9V/12V/18V) for panel optimization.
  • Multi-source charging: Solar (7-30V), 5V USB, or DC adapter, with up to 2A charge current.
  • Three independent, switchable regulated outputs: OUT1 (5V, 1.5A), OUT2 (3.3V, 1A), OUT3 (selectable 9V or 12V, 0.5A).
  • Robust protection: Li-ion over-charge/discharge, battery/solar reverse connection, output over-current, short-circuit, and over-temperature.
  • High-efficiency power conversion using all MLCC components for stable, low-ESR performance.
  • Wide operating temperature range (-40°C to +85°C) for harsh outdoor environments.
  • Includes mounting hardware, thermal pad, aluminum cooling fin, and DC jack adapter for easy integration.
  • USB connector features ESD-protective shell for improved interface durability.

Applications

  • Solar-powered IoT environmental monitoring stations (air quality, weather, soil sensors).
  • Autonomous solar robots and mobile outdoor robotics platforms.
  • Off-grid smart agriculture systems and remote data loggers.
  • Small-scale solar street lighting and pathway illumination controls.
  • Portable solar power banks and field-deployable device charging stations.

Technical Specifications

Solar Input Voltage7V to 30V
Battery Input3.7V Single Cell Li-polymer/Li-ion
Max Charge Current (USB/Solar)2A
Charging Cutoff Voltage4.2V ±1%
MPPT Setting VoltagesOFF / 9V / 12V / 18V
USB Input Voltage5V
Regulated Output 1 (OUT1)5V @ 1.5A
Regulated Output 2 (OUT2)3.3V @ 1A
Regulated Output 3 (OUT3)9V or 12V @ 0.5A (Selectable)
Operating Temperature-40°C to +85°C
Dimensions (L x W)78mm x 68mm
Core ICLTC3652

Frequently Asked Questions

What types of solar panels are compatible with this Solar Power Manager?

The module accepts a wide solar input voltage range of 7V to 30V, making it compatible with common 9V, 12V, and 18V photovoltaic panels. Its integrated MPPT algorithm can be set to track the maximum power point at 9V, 12V, or 18V to optimize efficiency for the specific panel in use.

Can I charge the battery without a solar panel?

Yes, the module supports multiple charging sources. You can charge the connected 3.7V Li-ion battery using a standard 5V USB charger or a DC adapter (within the 7-30V input range) in addition to solar power. The maximum charge current from any source is 2A.

How do I control and select the different voltage outputs?

The three regulated outputs (5V, 3.3V, and selectable 9V/12V) are each controlled by an individual ON/OFF Jumper header on the board. The 9V/12V output (OUT3) is selected via a dedicated Jumper setting. All outputs are powered from the main battery rail and can be enabled or disabled independently as needed by your system.

What protections does this power manager provide for my battery and system?

The module includes comprehensive protection: Li-ion battery over-charge and over-discharge protection, reverse polarity protection for both the battery and solar panel inputs, and output over-current, short-circuit, and over-temperature protection. These features ensure safe, stable operation in standalone solar applications.

What is the purpose of the included aluminum cooling fin and thermal pad?

The aluminum cooling fin and thermal conductive silicone pad are provided for thermal management. For applications drawing higher continuous currents, especially on the 5V or 9V/12V outputs, attaching the fin to the board's main IC (LTC3652) with the thermal pad helps dissipate heat, maintaining optimal performance and reliability within the -40°C to +85°C operating range.

Package Includes

  • 1 x Solar Power Manager Module
  • 3 x Black Jumper Caps
  • 4 x M3 Nylon Pillars
  • 4 x M3 Stainless Steel Screws
  • 1 x 14mm x 14mm Aluminum Cooling Fin
  • 1 x 14mm x 14mm Thermal Conductive Silicone Pad
  • 1 x Female DC Power Jack Adapter

Additional Information

Weight 0.064 kg
Dimensions 7.8 × 6.8 cm

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