UCC2813DTR-1 Low-Power BiCMOS Current-Mode PWM Controller

The UCC2813DTR-1 is a versatile, low-power pulse width modulation (PWM) controller integrated circuit from Texas Instruments, designed for a wide range of power supply applications. This device is part of the UCC2813-x series, offering various performance benefits for switched-mode power supplies.

Manufactured using BiCMOS technology, the UCC2813DTR-1 combines the robustness of bipolar transistors with the efficiency and precision of CMOS, resulting in improved performance and lower power consumption. The device operates at a fixed frequency that is set by an external resistor and capacitor, providing designers with flexibility in optimizing their power supply designs.

Key features of the UCC2813DTR-1 include:

• An extended temperature range of -40°C to 85°C, ensuring reliable operation under various environmental conditions.
• A low startup current of less than 0.5mA, which minimizes standby power consumption and is ideal for energy-sensitive applications.
• Current-mode control, which provides inherent line feed-forward, cycle-by-cycle current limiting, and ease of loop compensation.
• Trimmed oscillator discharge current, enabling precise frequency control and consistent performance across units.
• High-current totem-pole output stage with a 1A peak current capability, suitable for driving a power MOSFET or IGBT directly.
• Under-voltage lockout with hysteresis, ensuring the controller remains off until the supply voltage reaches an acceptable level.

The UCC2813DTR-1 is available in a thin shrink small outline package (TSSOP), which is ideal for space-constrained applications. Its robust design and comprehensive protection features make it an excellent choice for a variety of power supply configurations, including off-line and DC-to-DC converters.

With its low-power operation and high level of integration, the UCC2813DTR-1 from Texas Instruments is a reliable and efficient solution for designers looking to optimize their power management systems.