UCC2892D

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PMIC - Voltage Regulators - DC DC Switching Controllers

The UCC2892D from Texas Instruments is a DC to DC switching controller that is designed to provide accurate control and reliable power conversion for intermediate power supplies in high voltage, medium voltage and low voltage applications. This device has several key features that make it particularly well-suited for applications in several industries. The primary features, along with its application field and working principle, are listed and explained in the following sections.

Features

The key features of the UCC2892D include the following:

• 5V to 75V supply voltage range
• 400V +/-2% accurate output voltage
• Long-life operation with low output ripple
• Excellent dimming and lamp response
• Low jitter operation
• Wide operating temperature range (-35°C to +125°C)
• Integrated anti-ringing filter
• On-board power-good LED indicator

These features combine to make the UCC2892D an ideal DC-DC switching controller for a variety of applications.

Applications

The UCC2892D is well-suited for use in lighting, audio, computing, automotive, communications, industrial and medical applications. It can also be used in a variety of other systems where power conversion is needed.

One of the main advantages of the UCC2892D is its ability to achieve accurate, reliable and efficient power conversion over a wide operating temperature range. In addition, its low jitter operation makes it an ideal choice for applications where noise reduction is critical, such as in telecommunications and military programs.

The UCC2892D is also suitable for use in lighting applications, as it provides excellent dimming and lamp response. This can be especially useful in systems that require precise illumination levels. Additionally, its integrated anti-ringing filter helps reduce electromagnetic interference in sensitive environments.

Working Principle

The UCC2892D employs an efficient pulse-width modulation (PWM) voltage control system. This system operates by repeatedly switching a transistor on and off, which creates a series of pulses. Each pulse corresponds to a certain voltage level. The average voltage of the pulses can be adjusted to produce a desired output voltage.

The device also incorporates several features that help ensure reliable operation. These include an on-board power-good LED indicator, a current limit detection circuit and a thermal protection function. Additionally, the device is designed to minimize output ripple and reduce thermal stress.

Conclusion

The UCC2892D is a versatile DC to DC switching controller that is suitable for use in a number of applications, including lighting, computing and audio. Its features include a wide supply voltage range, an accurate output voltage, excellent dimming and lamp response, low jitter operation and a thermal protection function. Additionally, it incorporates an efficient PWM voltage control system, which helps ensure accurate and reliable power conversion.

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