LD90-23B15R2

Product Overview
The MORNSUN LD90-23B15R2 is a high-performance isolated DC-DC converter designed for industrial and communication applications requiring reliable power conversion with galvanic isolation. This module integrates advanced magnetic isolation and robust circuit design to provide stable, efficient voltage conversion in harsh operating environments. It is particularly suitable for applications where space-saving and high efficiency are critical.

Electrical Specifications

* Input Voltage Range: 18 to 36 V DC
The converter accepts a wide input voltage range, making it compatible with various DC power sources commonly found in industrial and telecom systems.

* Nominal Input Voltage: 24 V DC
The device is optimized to operate at a nominal 24 V supply, a standard voltage in many control and automation systems.

* Output Voltage: 15 V DC
The module delivers a regulated 15 V output suitable for powering logic circuits, sensors, and other auxiliary devices.

* Output Current: 6 A (maximum)
With a high output current capability of up to 6 amps, the LD90-23B15R2 supports moderate to high power loads while maintaining stable output voltage.

* Output Power: 90 W
The converter can deliver up to 90 watts of output power, balancing power density and thermal management.

* Isolation Voltage: 3000 V DC (input to output)
Galvanic isolation up to 3000 volts ensures protection against high voltage surges and noise, improving system reliability and safety.

* Efficiency: Up to 89%
High conversion efficiency reduces heat dissipation, enabling more compact designs and lower cooling requirements.

* Ripple & Noise: Typically 150 mVp-p
Low output ripple and noise contribute to cleaner power delivery, essential for sensitive analog and digital circuits.

Mechanical and Thermal Characteristics

* Package Type: Open-frame module
The LD90-23B15R2 is housed in a compact, open-frame package designed for PCB mounting in constrained spaces, facilitating system integration.

* Dimensions: Approximately 76.2 mm x 50.8 mm x 12.7 mm (L x W x H)
Its slim profile suits applications with limited space, allowing easy accommodation in power supply assemblies or embedded systems.

* Operating Temperature Range: -40°C to +85°C
The wide operating temperature range ensures functionality under extreme environmental conditions common in industrial and outdoor applications.

* Storage Temperature Range: -55°C to +125°C
The device can withstand broad temperature extremes during shipping and storage without performance degradation.

* Cooling Method: Convection
Natural convection cooling is sufficient for this module under normal operating conditions, simplifying system design and reducing maintenance.

* Thermal Shutdown Protection: Integrated
Built-in thermal protection helps prevent damage from overheating, increasing device longevity and reliability.

Electrical Protections and Features

* Short Circuit Protection: Continuous, auto-recovery type
The converter can handle output short circuits safely, automatically recovering without manual intervention after fault removal.

* Overcurrent Protection: Present
Limits excessive current flow to protect the device and connected load from damage caused by abnormal operating conditions.

* Overvoltage Protection: Included
Protects the load from voltage spikes beyond the specified output range, enhancing overall system safety.

* Input Under-voltage Lockout: Yes
Prevents operation when input voltage falls below a threshold, avoiding unstable output and potential damage.

* EMC Compliance: Meets industrial EMI/EMC standards
Designed to minimize electromagnetic interference, this module supports stable operation alongside sensitive equipment.

Performance Characteristics

* Line Regulation: ±0.5% (typical)
Maintains output voltage stability despite variations in input voltage, critical for precision applications.

* Load Regulation: ±1.0% (typical)
Ensures minimal output voltage deviation with changing load conditions, contributing to reliable power delivery.

* Transient Response: Fast recovery within 300 µs
Quickly stabilizes output voltage following sudden load changes, preventing malfunction or data loss in connected systems.

* Switching Frequency: Approximately 100 kHz
Moderate switching frequency balances efficiency and electromagnetic compatibility, aiding compact filter design.

Applications

* Industrial Automation: Powers control systems, sensors, and actuators requiring isolated and regulated DC power supplies.

* Telecommunication Equipment: Provides stable power to communication modules and network devices with isolation for signal integrity.

* Test and Measurement: Supplies precise voltage levels to test instruments and measurement circuits.

* Embedded Systems: Supports embedded controllers and peripheral devices requiring isolated power rails.

* Renewable Energy Systems: Suitable for power management in solar and wind applications with DC bus voltages within the input range.

* Transportation and Railway: Designed to withstand harsh vibration and temperature environments typical in vehicular and railway electronics.

Compliance and Standards

* Safety Certifications: Complies with relevant industrial safety standards for isolated power modules, ensuring user and equipment protection.

* RoHS Compliance: Environmentally friendly design free from hazardous substances, meeting global regulations for electronics manufacturing.

Summary of Key Specifications

* Input Voltage: 18 – 36 V DC
* Output Voltage: 15 V DC
* Output Current: 6 A
* Output Power: 90 W
* Isolation Voltage: 3000 V DC
* Efficiency: Up to 89%
* Ripple & Noise: 150 mVp-p
* Operating Temperature: -40°C to +85°C
* Dimensions: 76.2 mm x 50.8 mm x 12.7 mm
* Cooling: Convection
* Protections: Short circuit, overcurrent, overvoltage, under-voltage lockout

Conclusion
The MORNSUN LD90-23B15R2 DC-DC converter is a robust and efficient power module tailored for demanding industrial and communication environments. Its wide input voltage range, high isolation voltage, and substantial output current capability make it a versatile choice for powering isolated circuits with reliable voltage regulation. The compact form factor combined with multiple protection features enhances system safety and longevity. Designed to meet stringent EMC and environmental standards, this converter ensures stable performance in challenging conditions, making it ideal for applications ranging from industrial automation to telecommunications and renewable energy systems.