How to Use DDR-60L-24: Examples, Pinouts, and Specs

The DDR-60L-24 is a 60W, 24V LED driver designed for powering LED lighting applications. It features high efficiency, a compact design, and reliable performance, making it ideal for both residential and commercial lighting systems. This constant voltage LED driver ensures stable power delivery to LED strips, modules, and other 24V DC lighting components.

• LED strip lighting for residential and commercial spaces
• Architectural lighting installations
• Backlighting for signage and displays
• Task lighting and under-cabinet lighting
• Indoor and outdoor LED lighting systems (when housed in appropriate enclosures)

The DDR-60L-24 is designed to meet the needs of modern LED lighting systems. Below are its key technical specifications:

The DDR-60L-24 has a simple terminal block interface for input and output connections. Below is the pin configuration:

1. Input Connection:

   • Connect the AC mains supply to the L (Live) and N (Neutral) terminals.
   • Ensure the input voltage is within the range of 90-264V AC.
   • Connect the FG terminal to Earth for safety and to reduce electrical noise.

2. Output Connection:

   • Connect the LED load to the +V and -V terminals.
   • Ensure the total power consumption of the connected LEDs does not exceed 60W.
   • Use appropriate wire gauges to handle the output current (2.5A max).

3. Mounting:

   • Secure the driver in a well-ventilated area to prevent overheating.
   • Avoid placing the driver in enclosed spaces without proper airflow.

4. Power On:

   • After all connections are secure, power on the AC mains supply.
   • Verify that the LEDs light up as expected.

• Load Matching: Ensure the total power of the connected LEDs does not exceed the driver's 60W capacity.
• Ventilation: Operate the driver in a well-ventilated environment to maintain efficiency and longevity.
• Safety: Always disconnect the driver from the mains supply before making any wiring changes.
• Waterproofing: If used in outdoor applications, house the driver in a waterproof enclosure.

The DDR-60L-24 can be used to power 24V LED strips controlled by an Arduino UNO. Below is an example circuit and code for dimming a 24V LED strip using a MOSFET and PWM signal from the Arduino.

1. Connect the +V and -V terminals of the DDR-60L-24 to the LED strip.
2. Use an N-channel MOSFET (e.g., IRF540N) to control the LED strip:
   • Source pin to -V (Ground).
   • Drain pin to the negative terminal of the LED strip.
   • Gate pin to an Arduino PWM pin (e.g., Pin 9) through a 220-ohm resistor.
3. Connect the Arduino's GND to the -V terminal of the DDR-60L-24.

// Example code to control the brightness of a 24V LED strip using PWM
// Ensure the MOSFET is properly connected to the Arduino and LED strip

const int pwmPin = 9; // PWM pin connected to the MOSFET gate

void setup() {
  pinMode(pwmPin, OUTPUT); // Set the PWM pin as an output
}

void loop() {
  // Gradually increase brightness
  for (int brightness = 0; brightness <= 255; brightness++) {
    analogWrite(pwmPin, brightness); // Write PWM signal to the MOSFET
    delay(10); // Small delay for smooth transition
  }

  // Gradually decrease brightness
  for (int brightness = 255; brightness >= 0; brightness--) {
    analogWrite(pwmPin, brightness); // Write PWM signal to the MOSFET
    delay(10); // Small delay for smooth transition
  }
}

1. LEDs Do Not Light Up:

   • Cause: Incorrect wiring or no power supply.
   • Solution: Double-check all connections, ensure the AC mains supply is on, and verify the LED polarity.

2. Driver Overheats:

   • Cause: Insufficient ventilation or excessive load.
   • Solution: Ensure proper airflow around the driver and reduce the LED load to within 60W.

3. Flickering LEDs:

   • Cause: Unstable input voltage or loose connections.
   • Solution: Verify the input voltage is stable and secure all connections.

4. Driver Does Not Power On:

   • Cause: Blown internal fuse or incorrect input voltage.
   • Solution: Check the input voltage and replace the driver if necessary.

• Can the DDR-60L-24 be used outdoors?

  • Yes, but it must be housed in a waterproof enclosure to protect it from moisture.

• What is the maximum length of LED strip I can connect?

  • This depends on the power consumption of the LED strip. Ensure the total power does not exceed 60W.

• Can I dim the LEDs with this driver?

  • The DDR-60L-24 itself does not support dimming, but you can use an external PWM controller or an Arduino with a MOSFET for dimming.

• Is the driver compatible with 12V LEDs?

  • No, the DDR-60L-24 outputs 24V DC and is not suitable for 12V LED systems. Use a 12V driver instead.