Texas Instruments UC1825A High Speed PWM Controller UC1825AL

The UC1825A High Speed PWM Controller from Texas Instruments is designed for high-performance applications, supporting both voltage-mode and current-mode control methods. It operates effectively at switching frequencies up to 1 MHz and features a low propagation delay of 50 ns to output. The controller includes high-current dual totem pole outputs capable of delivering 2-A peak currents, making it suitable for demanding load conditions. Key specifications include a trimmed oscillator discharge current for precise dead time control, a low startup current of 100 OºA, and a current limiting comparator that operates on a pulse-by-pulse basis. The device also features a latched overcurrent comparator with full cycle restart capabilities, enhancing its reliability in fault conditions. The error amplifier has a gain bandwidth product of 12 MHz and an input offset voltage of 2 mV, ensuring accurate performance. The UC1825A is available in multiple package types, including SOIC and PDIP, and is rated for operation in a temperature range of -55¬8C to 125¬8C. This combination of features makes the UC1825A a robust choice for engineers seeking a reliable PWM controller for their projects.