DC7V-35V to DC1.25V-30V LED Driver Charger Constant Current Buck Converter Module

Product Overview

Experience high efficiency and stable output with our LM2596-based adjustable buck module. This compact module is designed for optimal performance, equipped with high-quality components for effective power regulation.

Key Features:

• High efficiency up to 92%, ensuring minimal heat production and optimal performance.
• Supports current usage up to 3A effortlessly.
• Includes original TI operational amplifier for stable output current control.
• Original Sanyo low ESR filter capacitors are used for achieving low ripple voltage (up to 50mV).
• Advanced machine placement and reflow soldering techniques ensure reliability.
• Adjustable output voltage via an easy-to-use blue resistor knob.
• Input/output must be correctly connected (IN-/IN+ and OUT-/OUT+) to prevent damage.

Technical Specifications:

• Type: Non-isolated step-down module
• Rectification: Non-synchronous
• Input Voltage: 7V - 35V
• Output Voltage: 1.25V - 30V
• Maximum Output Current: 3A (adjustable)
• Transfer Efficiency: Up to 92%
• Switching Frequency: 150KHz
• Output Ripple: Max 50mV
• Load Regulation: ±0.5%
• Voltage Regulation: ±2.5%
• Operating Temperature: -40°C to +85°C
• Dimensions: 48 x 23 x 14mm (L x W x H)

Applications:

Battery Charging:

1. Confirm battery float voltage, charging current, and module input voltage.
2. Adjust the potentiometer to set the output voltage to approximately 5V.
3. Measure the short-circuit output current using a multimeter and set to the desired charge current.
4. Adjust the lamp current as needed (default is 0.1 times the charging current).
5. Set the output voltage to the battery’s float voltage.
6. Connect and charge the battery. (Ensure modules are correctly connected prior to battery connection.)

LED Constant Current Driver:

1. Ensure specified LED operating current and max voltage are known.
2. Set output voltage to around 5V via potentiometer adjustment.
3. Measure short-circuit output current and adjust to desired LED current.
4. Set the output voltage to the LED’s max operating voltage.
5. Connect and test the LED. (Confirm module connections before LED attachment.)

Package Includes:

• 1 x Adjustable Buck Module