Texas Instruments

UCC3570NG4  

AC DC Converters, Offline Switches

UCC3570NG4 Description

The UCC3570NG4 is an offline switch forward converter IC designed by Texas Instruments, a leading manufacturer in the electronics industry. This device is part of the Power Management (PMIC) category and is housed in a through-hole 14DIP package. Despite its current status as obsolete, the UCC3570NG4 remains a notable component for its robust performance and specific applications.

UCC3570NG4 Features

The UCC3570NG4 is designed for high efficiency and reliability in power conversion applications. Key features include:

• Operating Temperature Range: The device operates reliably within a temperature range of 0°C to 70°C (TA), making it suitable for a variety of ambient conditions.
• Topology: Utilizing a forward converter topology, the UCC3570NG4 is ideal for applications requiring high efficiency and power density.
• Control Features: It incorporates frequency control and soft start mechanisms, ensuring smooth startup and stable operation under varying load conditions.
• Fault Protection: The UCC3570NG4 includes current limiting as a fault protection feature, safeguarding the device and connected circuits from overcurrent conditions.
• Switching Frequency: With a switching frequency of 500kHz, it offers high efficiency and reduced component size, contributing to compact design solutions.
• Supply Voltage: The device operates with a supply voltage (Vcc/Vdd) range of 9V to 15V, providing flexibility in power supply options.
• Start-Up Voltage: A start-up voltage of 13V ensures reliable activation under specified power conditions.
• Duty Cycle: The UCC3570NG4 supports a duty cycle of up to 80%, enhancing its versatility in various power conversion tasks.
• Output Isolation: The device provides isolated output, which is crucial for applications requiring electrical isolation between input and output.
• Compliance: It is REACH unaffected and RoHS3 compliant, ensuring environmental safety and regulatory adherence.
• Packaging: The UCC3570NG4 is available in a tube package, facilitating easy handling and integration into through-hole mounting processes.

UCC3570NG4 Applications

The UCC3570NG4 is well-suited for a range of applications where high efficiency and reliable power conversion are critical. Specific use cases include:

• Power Supplies: Ideal for offline power supplies in consumer electronics, industrial equipment, and medical devices.
• Adapters and Chargers: Suitable for AC-DC adapters and chargers requiring high efficiency and compact design.
• Telecommunications: Can be used in telecom equipment where isolated power conversion is necessary.
• Industrial Control Systems: Effective in industrial control systems that demand robust power management solutions.

Conclusion of UCC3570NG4

Despite being marked as obsolete, the UCC3570NG4 remains a valuable component in the electronics industry due to its unique features and performance benefits. Its forward converter topology, combined with frequency control and soft start mechanisms, ensures efficient and stable power conversion. The inclusion of current limiting as a fault protection feature further enhances its reliability. The UCC3570NG4 is particularly advantageous in applications requiring isolated output and high efficiency, such as power supplies, adapters, chargers, and industrial control systems. Its compliance with environmental regulations and availability in a through-hole package make it a practical choice for designers and engineers seeking robust power management solutions.

UCC3570NG4 Documents

Download datasheets and manufacturer documentation for UCC3570NG4

Datasheets :

UCC1570, 2570, 3570