onsemi

UC2845BDR2  

DC DC Switching Controllers

UC2845BDR2 Description

The UC2845BDR2 is a transistor driver IC designed for power management applications, specifically tailored for boost and flyback topologies. Manufactured by onsemi, this obsolete component offers a robust set of features suitable for a variety of power conversion needs. The UC2845BDR2 operates within a supply voltage range of 7.6V to 30V and is capable of switching frequencies up to 500kHz, making it ideal for high-frequency applications. The device is packaged in a surface-mount 14SOIC format, ensuring ease of integration into compact designs. With a moisture sensitivity level (MSL) of 1 (unlimited), the UC2845BDR2 is well-suited for environments with varying humidity levels.

UC2845BDR2 Features

• Output Type: Transistor Driver
• Output Configuration: Positive, Isolation Capable
• Frequency - Switching: Up to 500kHz
• Voltage - Supply (Vcc/Vdd): 7.6V ~ 30V
• Moisture Sensitivity Level (MSL): 1 (Unlimited)
• Synchronous Rectifier: No
• ECCN: EAR99
• Topology: Boost, Flyback
• Mounting Type: Surface Mount
• Clock Sync: No
• Number of Outputs: 1
• Control Features: Frequency Control
• Duty Cycle (Max): 48%
• Output Phases: 1
• HTSUS: 8542.31.0001
• Package: Tape & Reel (TR)
• Base Product Number: UC2845

The UC2845BDR2 stands out with its ability to support positive output configurations and isolation capabilities, enhancing its versatility in various power management scenarios. Its frequency control feature allows for precise regulation of switching frequencies, optimizing efficiency and performance. The device's maximum duty cycle of 48% ensures reliable operation within specified parameters.

UC2845BDR2 Applications

The UC2845BDR2 is particularly well-suited for applications requiring efficient power conversion in compact form factors. Its boost and flyback topology support makes it ideal for:

• DC-DC Converters: Efficiently stepping up or stepping down voltage levels in power supplies.
• Switching Power Supplies: Providing high-frequency operation for compact and efficient designs.
• Battery Chargers: Managing power delivery with precise control features.
• LED Drivers: Ensuring consistent power supply for lighting applications.

The UC2845BDR2's surface-mount package and wide supply voltage range make it a reliable choice for engineers looking to integrate a versatile power management solution into their designs.

Conclusion of UC2845BDR2

The UC2845BDR2 from onsemi is a versatile transistor driver IC designed for power management applications. Its ability to support boost and flyback topologies, combined with a wide supply voltage range and high-frequency operation, makes it a valuable component for a variety of power conversion needs. Despite being an obsolete model, the UC2845BDR2 continues to offer unique features and advantages, such as isolation capabilities and precise frequency control, making it a reliable choice for engineers seeking a robust power management solution.

UC2845BDR2 Documents

Download datasheets and manufacturer documentation for UC2845BDR2

Datasheets :

UC3844B,45B & UC2844B,45B      

PCN Obsolescence/ EOL :

Multiple Devices 03/Jan/2008      

Environmental Information :

onsemi RoHS       onsemi REACH