UCC28730DR

The UCC28730DR is a high-performance flyback controller from Texas Instruments, designed for off-line AC-to-DC power supplies. This device is part of the UCC2873x family and is optimized for ultra-low standby power applications, making it suitable for a wide range of consumer electronics. It features primary-side regulation (PSR) for output voltage and current control, eliminating the need for an opto-coupler and additional secondary-side feedback components.
Key features include adaptive constant-current (CC) and constant-voltage (CV) profiles, high efficiency, and low no-load power consumption. The device also incorporates a built-in driver for an external MOSFET, reducing the overall component count and simplifying the design process. Additionally, it supports valley switching to minimize switching losses and improve efficiency.
Protection features include over-voltage, over-current, and over-temperature protections, providing robust operation and enhanced reliability. The UCC28730DR is ideal for power supply designs that require compact size, low standby power, and high efficiency, such as adapters for smartphones, tablets, and other portable electronic devices.

The UCC28730DR is a high-performance flyback controller from Texas Instruments, designed for efficient power supply solutions. Key features include:
1. Primary-Side Regulation (PSR): Eliminates the need for an optocoupler, reducing component count and simplifying design.
2. High Efficiency: Achieves ultra-low standby power consumption, typically less than 10mW, suitable for energy-efficient applications.
3. Wide Input Voltage Range: Supports a broad input range, making it versatile for global power supply standards.
4. Constant Voltage (CV) and Constant Current (CC) Control: Provides precise regulation for reliable power delivery.
5. Adaptive Multi-Mode Operation: Optimizes efficiency by adjusting operation modes based on load conditions.
6. Built-in Protection Features: Includes overvoltage, overcurrent, and thermal protection to enhance system reliability.
7. Programmable Line Compensation: Allows for better regulation accuracy under varying input voltage conditions.
8. Integrated 700V Start-Up Switch: Simplifies design and reduces external component requirements.
The UCC28730DR is well-suited for applications such as adapters, chargers, and auxiliary power supplies, where efficiency and reliability are critical.

The UCC28730DR is a high-frequency flyback controller from Texas Instruments, typically used in power supply applications. It comes in an 8-pin SOIC (Small Outline Integrated Circuit) package type, denoted by the "DR" in its part number, which indicates a standard surface-mount form factor suitable for automated assembly processes.

The UCC28730DR is an 8-pin device from Texas Instruments designed for isolated flyback power supply applications. Here is a concise summary of its pin functions:
1. VDD (Pin 1): Power supply input. Provides power to the controller after initial startup.
2. GND (Pin 2): Ground reference for the device.
3. DRV (Pin 3): Gate drive output. Connects to the power MOSFET to control switching.
4. VS (Pin 4): Voltage sense input. Monitors the auxiliary winding voltage for output regulation.
5. CS (Pin 5): Current sense input. Measures the current in the primary MOSFET for overcurrent protection.
6. RDM (Pin 6): Remote disable and multimode function. Allows the device to enter different operational modes.
7. VDD (Pin 7): Duplicate pin for VDD to enhance the device's packaging.
8. HV (Pin 8): High-voltage start-up. Connects directly to the bulk capacitor to enable fast startup.
The UCC28730DR is used for high-efficiency and low-standby power designs, featuring primary-side regulation and built-in protections.

The UCC28730DR is manufactured by Texas Instruments (TI), a global semiconductor company. Texas Instruments is known for designing and manufacturing a wide range of semiconductor products, including analog chips, embedded processors, and other electronic components used in various industries. TI focuses on innovation in electronics and provides solutions that improve efficiency, performance, and reliability in applications across automotive, industrial, personal electronics, communications, and enterprise systems.

The UCC28730DR is a high-efficiency flyback controller used primarily in AC-DC power supply applications. Its main application areas include adapters for consumer electronics, battery chargers, standby power supplies for appliances, and auxiliary power supplies in industrial and telecommunications equipment. The device features ultra-low standby power consumption and supports efficient power conversion, making it suitable for applications requiring compliance with stringent energy efficiency standards.

Equivalent products to the UCC28730DR, a high-efficiency flyback controller, include the ON Semiconductor NCP1250, Power Integrations LNK6768V, STMicroelectronics VIPer26, Infineon ICE5AR4770AG, and Fairchild FAN6756. These alternatives offer similar functionalities for designing compact and efficient AC-DC power supplies. Always confirm compatibility based on specific design requirements.