Overview
Description
The US011-SOLCHRGEV1Z Smart Solar Battery Charger demonstration board uses the ISL81801 buck-boost converter and RA2L1 32-bit MCU to convert energy from a solar panel (user-provided) to charge a lead-acid battery with Maximum Power Point Tracking (MPPT).
Features
- Supports up to 60V input and 60V output for compatibility with a wide range of solar panels and batteries
- Delivers up to 4A output current for faster and more efficient charging
- Programmable output to match battery requirements up to 60V
- Currently optimized for 12V, 12Ah lead-acid batteries
- Tested with 24V/7Ah lead-acid battery
- Uses a four-stage charging algorithm (trickle, bulk, absorption, float) with temperature compensation to extended battery life and ensure safety
- Implements MPPT (Perturb and Observe) to maximize power extraction from solar panels under changing sunlight
- Includes comprehensive protection features against overcurrent, over/undervoltage, reverse polarity, reverse current, and unsafe connections
Applications
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Smart Solar Battery Charger
Smart solar battery charger ensures efficient battery use, protects against overcharging, and adapts to variable inputs.
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Documentation
Featured Documentation
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| Type | Title | Date |
| Manual - Hardware |
PDF
1.93 MB
The US011-SOLCHRGEV1Z evaluation board operates as a smart solar battery charger. It uses a buck-boost converter and MCU to convert energy from a solar panel to charge a lead-acid battery. It features Maximum Power Point Tracking, supports up to 60V input and 60V output, and delivers up to 4A of output current for a fast and efficient charge. This document includes a block diagram, a quick start section, and an overview of the hardware and software with procedures and figures.
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Design & Development
Product Options
| Part Number | Status | Stock | Sampleable |
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| US011-SOLCHRGEV1Z | Active | Out of Stock | N/A |
Support
Support Communities
- US011-SOLCHRGEV1Z reference design files
Do you provide the ref design files for this one? regards, Tim
Apr 1, 2026 - US011-SOLCHRGEV1Z reference design
Hello, Is there any reference design available for the US011-SOLCHRGEV1Z development board?
Mar 20, 2026
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