UCC28730QDRQ1

The UCC28730QDRQ1 is a highly integrated, isolated flyback controller designed for power supply applications, particularly in AC-DC converters. It operates in a wide input voltage range and is optimized for high efficiency and low standby power consumption. This controller incorporates advanced features such as a primary-side regulation mechanism, which eliminates the need for an optocoupler, reducing component count and cost.
Key features include programmable output voltage, a built-in high-voltage startup circuit, and protection mechanisms like over-voltage, over-current, and thermal shutdown. The UCC28730 is suitable for various applications, including consumer electronics, industrial power supplies, and LED drivers, making it a versatile choice for designers. Its efficient operation and robust performance contribute to energy savings and improved reliability in end products.

The UCC28730QDRQ1 is a highly integrated, primary-side regulation (PSR) off-line flyback controller designed for efficient power supply applications. Key features include:
1. High Efficiency: It supports efficient power conversion with minimal standby power consumption.
2. Primary-Side Regulation: Eliminates the need for an opto-isolator, reducing component count and cost.
3. Wide Input Voltage Range: Operates from 85V to 265V AC, suitable for universal input applications.
4. Integrated High-Voltage Startup: Contains an internal startup circuit for reduced external components.
5. Adaptive Frequency Modulation: Helps minimize electromagnetic interference (EMI) and improves efficiency.
6. Dimming Control: Built-in capabilities for dimming control in LED lighting applications.
7. Temperature Protection: Integrated thermal protection features to safeguard the device.
8. Soft-Start Function: Ensures gradual start-up, preventing output overshoot.
This combination of features makes the UCC28730QDRQ1 ideal for applications such as LED drivers, adapters, and other power supplies requiring high efficiency and compact design.

The UCC28730QDRQ1 is offered in a 16-pin HTQFN (Heat Sink Thin Quad Flat No-lead) package. This package type is designed for efficient thermal performance and space-saving in power management applications.

The UCC28730QDRQ1 is a high-performance, isolated flyback power supply controller designed for low-power applications. It features a 20-pin HTQFN (Thermal Enhanced Quad Flat No-leads) package.
Pin Count: 20 pins
Functions of Key Pins:
1. VDD (Pin 1): Supply voltage input.
2. VREF (Pin 2): Reference voltage output.
3. CS (Pin 3): Current sense input for primary side control.
4. GND (Pin 4): Ground reference.
5. COMP (Pin 5): Compensation for feedback loop stability.
6. VFB (Pin 6): Feedback voltage input for regulation.
7. CT (Pin 7): Timing capacitor connection for frequency control.
8. SR (Pin 8): Soft-start control.
9. HOLD (Pin 9): Hold function for low-power operation.
10. OUT (Pin 10): Gate driver output for switching MOSFET.
The remaining pins support additional functions such as protection features and operational controls, enhancing the overall reliability and efficiency of the power supply design.

The UCC28730QDRQ1 is manufactured by Texas Instruments (TI), a prominent multinational technology company. Texas Instruments specializes in the design and production of semiconductors and various integrated circuits, with a strong focus on analog and embedded processing solutions. The company is known for its innovative products that are used in a wide range of applications, including automotive, industrial, consumer electronics, and communications. TI is recognized for its commitment to quality and reliability, making it a key player in the semiconductor industry.

The UCC28730QDRQ1 is a high-efficiency, isolated power supply controller primarily used in applications such as LED lighting, wall adapters, and consumer electronics. It is suitable for battery chargers and industrial power supplies, providing features like constant current/voltage regulation and low standby power consumption. Its design allows for compact and cost-effective solutions in various electronic devices requiring reliable and efficient power management.

The UCC28730QDRQ1 chip is a high-performance flyback controller, and its equivalent products include the UCC28740, UCC28742, and UCC28743. These alternatives offer similar functionalities for isolated power supply applications. Always verify specific requirements, such as voltage ratings and features, before selecting a replacement.