Texas Instruments UCC2813PWTR-5 Low-Power BiCMOS Current-Mode PWM Controller

The UCC2813PWTR-5 from Texas Instruments is a high-performance, low-power, BiCMOS current-mode pulse-width modulation (PWM) controller. This advanced IC is designed for a wide range of power supply applications, including off-line and DC-to-DC converters, which require efficient power management and a compact footprint.

With its unique combination of features, the UCC2813PWTR-5 offers enhanced system reliability and power efficiency. The device operates at a fixed frequency that can be programmed externally with a single resistor. It also features an automatic feed-forward compensation that improves the response to input voltage changes and ensures consistent performance.

One of the key benefits of this PWM controller is its low startup and operating currents. The startup current is typically 100µA, and the operating current is typically 1.5mA. This low current consumption makes the UCC2813PWTR-5 an excellent choice for battery-powered and energy-sensitive applications.

The UCC2813PWTR-5 also includes a range of protective features to safeguard the system under various fault conditions. It has an undervoltage lockout (UVLO) circuit that ensures the controller is off unless the supply voltage is sufficient for stable operation. Additionally, the device is equipped with a programmable soft start function that limits inrush current during startup, reducing stress on the power supply components.

This PWM controller is available in a TSSOP-14 package, which is ideal for space-constrained applications. It is designed to operate over a wide temperature range, making it suitable for industrial applications that require robust performance under varying environmental conditions.

Overall, the Texas Instruments UCC2813PWTR-5 is a versatile and efficient solution for designers looking to optimize their power supply systems with a reliable, feature-rich PWM controller.

• Fixed-Frequency Current-Mode Control
• Low Startup and Operating Current
• Automatic Feed-Forward Compensation
• Programmable Soft Start
• Undervoltage Lockout with Hysteresis
• Operating Temperature Range: -40°C to +85°C
• Package: TSSOP-14