UCC28910DR

The UCC28910DR is an integrated power management controller designed by Texas Instruments. It is primarily used in low-power, isolated flyback converter applications, such as AC/DC adapters and chargers. The device incorporates a high-voltage start-up switch, a controller, and a 700V power MOSFET. It is optimized for efficiency and cost-effectiveness, featuring a constant-voltage (CV) and constant-current (CC) output regulation. The controller supports primary-side regulation (PSR), eliminating the need for an optocoupler and feedback circuitry, which reduces component count and cost.
The UCC28910DR operates in discontinuous conduction mode (DCM) and includes several protection features like overvoltage, overcurrent, and thermal shutdown to enhance reliability. Its green-mode operation reduces standby power consumption, making it compliant with energy efficiency standards. The package type, DR, refers to its standard SOIC-7 package, which is suitable for automated assembly and offers good thermal performance.
Overall, the UCC28910DR is ideal for designing compact, cost-effective, and energy-efficient power supplies in consumer electronics and industrial applications.

The UCC28910DR is a flyback switch-mode power supply controller designed for use in low-power applications. Key features include:
1. Primary-Side Regulation (PSR): It incorporates primary-side regulation, eliminating the need for an optocoupler and secondary-side feedback components, which simplifies design and reduces cost.
2. Quasi-Resonant Operation: This feature minimizes switching losses and improves efficiency by reducing the switching frequency at light loads.
3. High-Voltage Start-Up: The device includes a high-voltage start-up cell, which reduces component count and start-up time.
4. Advanced Protection Features: It provides overcurrent protection, overvoltage protection, output short-circuit protection, and thermal shutdown, enhancing system reliability and safety.
5. Frequency Modulation: This reduces EMI emissions, improving compliance with regulatory standards.
6. Integrated 700V Power MOSFET: The on-chip high-voltage power MOSFET simplifies design and reduces external component requirements.
These features make the UCC28910DR suitable for off-line, low-power, isolated, or non-isolated switch-mode power supplies, particularly in applications like chargers, adapters, and auxiliary power supplies.

The UCC28910DR is housed in an SOIC-7 (Small Outline Integrated Circuit) package type. This package typically features seven pins and is designed for surface-mount technology, making it suitable for compact and efficient power supply designs.

The UCC28910DR is an integrated power supply controller from Texas Instruments designed for isolated flyback applications. It comes in an 8-pin SOIC package. Here is a brief overview of its pin functions:
1. VDD (Pin 1): Supplies voltage to the internal circuitry. Requires a capacitor for stability.
2. FB (Pin 2): Feedback input to regulate output voltage by adjusting the duty cycle.
3. CS (Pin 3): Current sense input to monitor the primary-side current.
4. GND (Pin 4): Ground reference for the controller.
5. DRV (Pin 5): Drive output for controlling the gate of an external MOSFET.
6. NC (Pin 6): No connect; typically not used.
7. VS (Pin 7): Voltage sense input for detecting line voltage conditions.
8. BP (Pin 8): Supplies internal bias. Requires a bypass capacitor.
The UCC28910DR is used for efficient power conversion in AC/DC power supplies, providing multiple features like primary-side regulation (PSR) and eliminating the need for an optocoupler.

The UCC28910DR is manufactured by Texas Instruments (TI). Texas Instruments is a global semiconductor company known for designing and manufacturing analog and embedded processing chips. They supply a wide range of industries, including automotive, industrial, personal electronics, communications, and enterprise systems. As a leader in the semiconductor industry, TI focuses on innovation and the development of technologies that contribute to advancements in electronics and electrical engineering.

The UCC28910DR is a high-voltage switch-mode power supply controller designed for off-line flyback converters. It is commonly used in applications such as AC-DC adapters, battery chargers, standby power supplies, and auxiliary power supplies. Its integrated features, including primary-side regulation and constant voltage/constant current control, make it suitable for designs requiring high efficiency and low standby power consumption.

Equivalent products to the UCC28910DR chip are typically other flyback controllers with integrated MOSFETs designed for similar applications. Possible equivalents include the Power Integrations TinySwitch series (such as TNY278 or TNY280), ON Semiconductor's NCP1207 series, and Infineon's ICE5 series. However, exact equivalence depends on the specific design requirements like power output, input voltage range, and features. Always verify compatibility with your circuit design.