5A XL4015 constant voltage constant current step-down power module, voltage and current display, LED drive lithium battery charging

Description

Description

The 5A XL4015 CC-CV Step-Down Power Module is a versatile, high-performance DC-DC buck converter designed for applications requiring precise constant current (CC) and constant voltage (CV) regulation. Whether you need to charge lithium batteries, drive high-power LEDs, or create a benchtop power supply with adjustable current limiting, this module delivers reliable, efficient performance.

At the heart of this module is the XL4015 chip from XLSEMI – a 180KHz to 300KHz fixed frequency PWM buck converter that integrates a high-current 5A power MOSFET . This advanced design achieves conversion efficiencies of up to 96%, significantly outperforming older LM2596-based modules .

Built-in Dual Display: Unlike standard voltage-only regulators, this module features a built-in dual LED display that shows both output voltage and output current in real-time . The upper display shows voltage, while the lower display shows current, allowing you to monitor your application at a glance without needing an external multimeter.

CC-CV (Constant Current – Constant Voltage) Explained:

This module operates in two distinct modes, automatically switching between them based on load conditions :

Key Applications :

• Lithium Battery Charger: Set the float voltage (e.g., 4.2V for single Li-Ion cells) and charging current – the module automatically switches from CC to CV when the battery reaches full charge. Dual LED indicators show charging status.

• LED Constant Current Driver: Drive high-power LEDs at their specified current (e.g., 3A, 5A) without needing additional resistors. The module maintains a constant current regardless of LED forward voltage variations.

• Adjustable Bench Power Supply: With built-in current limiting and real-time voltage/current display, this module can power sensitive circuits safely – if your prototype shorts, the current limit prevents damage .

Comprehensive Protection Features :

• Built-in thermal shutdown – automatically shuts down when overheated

• Current limiting – user-adjustable from 0-5A via onboard potentiometer

• Output short protection – protects module and load during fault conditions

• Over-temperature protection – auto-restart when temperature normalizes

Important Operating Note: This module is a step-down (buck) converter only. The input voltage must always be at least 1.5V higher than the desired output voltage. It cannot step up voltage .

Whether you are building a custom battery charger, designing an LED lighting system, or creating a safe benchtop power supply, the XL4015 CC-CV module with voltage and current display provides the precision, power, and visibility you need.

Key Features

• Dual LED Display – Built-in display shows output voltage (upper) and output current (lower) in real-time; no external multimeter needed for monitoring

• CC-CV (Constant Current – Constant Voltage) Control – Independently adjustable current limit (0-5A) and output voltage for battery charging and LED driving

• 5A Maximum Output Current – Integrated 5A power MOSFET delivers up to 5A peak (3A-4A recommended continuous with adequate cooling)

• Wide Input Voltage Range – Accepts DC 5V to 38V input (8V-36V recommended), compatible with 12V, 24V, and 36V power systems

• Adjustable Output Voltage – Output can be set from 0.8V to 30V via onboard multi-turn potentiometer

• High Conversion Efficiency – Up to 96% efficiency minimizes power loss and heat generation

• 75W Maximum Output Power – Capable of delivering up to 75W output power (with adequate cooling)

• Comprehensive Protection – Built-in thermal shutdown, over-current limiting, and output short protection

• Low Output Ripple – <50mV typical ripple provides clean DC output for sensitive electronics

• Wide Operating Temperature – -40°C to +85°C for reliable operation in various environments

Technical Parameters