The TDK-Lambda CC6-2405SR-E is a DC-DC converter that is designed to provide efficient, reliable, and isolated power conversion in a compact, rugged form factor. It is part of the TDK-Lambda CC6 series, which includes converters that are optimized for high efficiency, compact size, and high reliability in demanding environments. The CC6-2405SR-E specifically delivers a 5 V DC output with a 2.4 A current capacity, making it ideal for various industrial and consumer applications where space constraints, efficiency, and power integrity are critical.

## General Description

The CC6-2405SR-E is a step-down (buck) converter that converts an input voltage in the range of 9 V to 36 V DC to a stable 5 V DC output. The output power capability of 12 W and its isolated design make it suitable for use in both low-power and high-power environments, where a clean and regulated 5 V output is necessary. It is particularly useful for applications where space, efficiency, and cost are important, including communications systems, industrial control, automation, embedded systems, and medical devices.

## Key Features

* Input Voltage Range: 9 V to 36 V DC
* Output Voltage: 5 V DC
* Output Current: 2.4 A max (12 W)
* Efficiency: Up to 95%
* Output Power: 12 W
* Isolation Voltage: 1500 V DC (Input to Output)
* Package Type: SIP-8 (Single Inline Package)
* Operating Temperature Range: -40°C to +85°C
* Continuous Short Circuit Protection: Yes
* Overvoltage Protection: Yes
* Overcurrent Protection: Yes
* RoHS Compliant: Yes, lead-free
* MTBF: > 1,000,000 hours (at 25°C)

## Electrical Characteristics

Input Specifications

* Input Voltage Range: 9 V to 36 V DC
* Input Current (at full load):

* At 24 V input: 0.5 A
* At 9 V input: 1.3 A
* Input Ripple: ≤ 100 mVpp (at full load)
* Start-up Time: Typically 20 ms

Output Specifications

* Output Voltage: 5 V DC ±2%
* Output Current: 2.4 A max
* Output Power: 12 W max
* Output Ripple and Noise: ≤ 50 mVpp
* Efficiency: Up to 95%
* Regulation:

* Line Regulation: ±0.5%
* Load Regulation: ±1%
* Overcurrent Protection: Limits the output current to a safe level
* Short-circuit Protection: Internal protection to prevent damage in case of output short
* Overvoltage Protection: Ensures the output voltage does not exceed 5.5 V under fault conditions

## Mechanical Characteristics

* Package Type: SIP-8 (Single Inline Package)
* Package Dimensions:

* Length: 25.40 mm (1.00 in)
* Width: 12.70 mm (0.50 in)
* Height: 15.75 mm (0.62 in)
* Pin Layout: Standard SIP-8 configuration for ease of integration into PCB designs
* Weight: Approximately 10 g
* Lead Material: Tin-plated copper
* Mounting Type: Through-hole mounting, making it suitable for a wide variety of applications

## Applications

The CC6-2405SR-E is highly versatile and used in a broad range of industries where compact, reliable, and efficient DC-DC conversion is required. Some typical applications include:

* Industrial Automation Systems: Powers control circuits, sensors, and actuators in industrial systems.
* Communication Systems: Used in telecommunication devices and communication systems requiring isolated power supplies.
* Medical Devices: Provides clean, regulated 5 V DC power for medical instrumentation, where stable and reliable performance is crucial.
* Embedded Systems: Used in embedded designs to provide 5 V power to microcontrollers, sensors, and other low-power devices.
* Power Supplies for Sensors and Actuators: Powers low-voltage sensors, actuators, and other components in electronic devices and machinery.
* Consumer Electronics: Powers small electronic devices like portable audio equipment, routers, and other embedded systems.
* Test Equipment: Used in measurement and testing devices where a stable, isolated DC power source is needed.

## Performance Characteristics

* High Efficiency: The CC6-2405SR-E offers up to 95% efficiency, which significantly reduces power loss, heat generation, and energy consumption, making it ideal for applications requiring continuous, stable operation in tight spaces.
* Compact Design: The SIP-8 package allows for easy integration into small, space-constrained systems, making it a great choice for portable and embedded systems.
* Thermal Performance: The unit is designed to operate in environments with temperatures ranging from -40°C to +85°C, ensuring that it can perform reliably in a variety of environmental conditions, from outdoor installations to factory floors.
* Protection Features: The overcurrent, overvoltage, and short-circuit protection features enhance the safety and reliability of the unit, making it suitable for applications where power integrity is critical.
* Isolated Design: The 1500 V isolation between the input and output provides protection for sensitive components and systems, making the unit suitable for environments where electrical isolation is necessary.
* Low Ripple and Noise: With an output ripple and noise of ≤ 50 mVpp, the CC6-2405SR-E ensures a clean and stable output voltage, which is critical in applications like sensors, communication, and medical devices where voltage fluctuations can lead to errors.

## Thermal and Environmental Considerations

The CC6-2405SR-E is designed to operate in environments with wide temperature ranges, from -40°C to +85°C, making it suitable for both commercial and industrial applications that may experience extreme temperature variations. This temperature range ensures reliable operation in outdoor, industrial, and automotive environments.

The converter also has a high MTBF (Mean Time Between Failures) rating of more than 1 million hours at 25°C, indicating a high level of reliability and longevity, which is crucial in critical systems where downtime is not acceptable.

## Design Considerations

When designing with the CC6-2405SR-E, it’s essential to consider the following:

* Thermal Management: Although the unit offers high efficiency, proper ventilation and, if necessary, external heat sinking should be used to prevent overheating, particularly in applications where high power is consumed.
* Capacitor Selection: Proper selection of input and output capacitors will help minimize ripple and noise and improve overall system performance. High-quality low-ESR capacitors are recommended for the input and output stages to maintain stability and efficiency.
* Input Voltage: Ensure that the input voltage stays within the specified range of 9 V to 36 V DC to avoid damaging the converter. For systems with fluctuating input voltages, it is recommended to include a voltage regulator or protection circuit.
* PCB Layout: The PCB layout should account for good grounding, proper decoupling of power traces, and minimal inductance between the input and output connections to maintain efficiency and reduce noise.

## Summary

The TDK-Lambda CC6-2405SR-E is a high-efficiency, compact DC-DC converter that offers a 5 V output with 2.4 A current capability. It is suitable for a wide range of applications, including industrial control, medical devices, communication systems, and embedded electronics. With its high efficiency, compact SIP-8 package, isolation features, and robust protection mechanisms, the CC6-2405SR-E is ideal for environments where space is limited and reliable power conversion is essential. Its 95% efficiency, low ripple and noise, and comprehensive protection make it an excellent choice for applications where power integrity, stability, and reliability are paramount.