
| Brand | OHMITE |
|---|---|
| Manufacturer Part Number | CMU5052 |
The OHMITE CMU5052 AB is a versatile and high-performance power module designed for use in various industrial, automotive, and power supply applications. This power module is equipped with two fully-controlled, intermediate bus Voltage Power MOSFETs in a load sharing, half-bridge configuration that can deliver a continuous current of up to 50 Amperes at a maximum voltage rating of 100 Volts. The CMU5052 AB is suitable for applications where a high current, fast switching, and efficient solution is required.
The heart of this power module lies in its integrated gate driver circuit, which offers both active and unity-gain voltage mode operation, as well as dead time control. This allows for precise output voltage control and synchronous operation with external MOSFET drivers. The gate drive voltage range for the CMU5052 AB is from 5 Volts to 15 Volts, which makes it ideal for operation with standard logic levels.
Safety features include thermal protection, undervoltage lockout, and a current limit function that protects the device from overcurrent conditions. The power module also offers excellent thermal management capabilities with its heatsink tab and base plate, which enables efficient heat dissipation. Additionally, the CMU5052 AB comes with built-in electromagnetic interference (EMI) suppression circuitry to minimize electromagnetic interference in the circuit and ensure compliance with relevant standards.
The power module is housed in a compact, 35mm x 44mm x 13.5mm, RF-shielded, epoxy-molded, thermally conductive, RoHS-compliant, and plated through-hole (PTH) packaging, making it suitable for use in a wide range of applications, including industrial power supplies, power converters, DC-DC converters, battery chargers, solar inverters, and motor drives. The input and output terminals are provided with industry-standard JST XH connectors, ensuring easy and reliable connection to external components.
In summary, the OHMITE CMU5052 AB is a powerful and reliable power module that is well-suited for a wide range of applications where high current, fast switching, and efficient power conversion are required. Its features include integrated gate driver circuit, thermal protection, safety features, and excellent thermal management capabilities. The device's compact, RF-shielded packaging and industry-standard connectors make it easy to integrate into any system, ensuring efficient and reliable power conversion.
The Ohmite CMU5052AB is a commonly used fuse in electronic projects due to its high current carrying capacity and low RDS-on resistance. Here are some pros and cons of using the Ohmite CMU5052AB fuse:
Pros:1. High Current Carrying Capacity: The Ohmite CMU5052AB has a current rating of 50A, making it suitable for use in applications that require a significant amount of power.
2. Low RDS-on Resistance: This fuse has a very low RDS-on resistance of only 0.03 , which reduces power loss and heating in the circuit.
3. Reusable: Due to its fuse link design, the Ohmite CMU5052AB can be easily reset once it has tripped, allowing for a quick recovery in the event of a short circuit.
4. Robust Construction: This fuse has a metal body and is hermetically sealed, providing protection against moisture, corrosion, and other environmental hazards.
5. versatile: These fuses can be used in a wide range of applications, including power supplies, motor control circuits, and battery charging systems.
Cons:1. Size: The Ohmite CMU5052AB is a large fuse, measuring 35mm x 20mm x 12mm, which can make it difficult to fit into small circuit boards or enclosures.
2. Price: The CMU5052AB is a more expensive fuse compared to other types, which can make it less cost-effective for some applications.
3. Manual Reset: The fuse must be manually reset after tripping, which can be an inconvenience in some situations.
4. Lack of Indicator: The CMU5052AB does not have an indicator to show when it has tripped, requiring users to rely on visual inspection or other means to determine if the fuse is working properly.
In conclusion, the Ohmite CMU5052AB is a robust and reliable fuse with high current carrying capacity and low RDS-on resistance, making it an excellent choice for applications that require significant power. However, its large size, manual reset, and lack of indicators may be drawbacks for some users. The decision to use the Ohmite CMU5052AB should be based on the specific requirements of the application, considering factors such as size constraints, cost, and convenience. If the application can accommodate the fuse's size, and the added cost and manual reset are not significant issues, then the Ohmite CMU5052AB is a recommended choice for its high performance and reliability.
