Texas Instruments UC2825A High Speed PWM Controller UC2825ADWTRG4

The UC2825A High Speed PWM Controller from Texas Instruments is designed for efficient voltage-mode or current-mode control in power management applications. It operates at switching frequencies up to 1 MHz and features a low startup current of 100 OºA, making it suitable for off-line applications. The controller includes high-current dual totem pole outputs capable of delivering 2-A peak currents, ensuring robust performance during transitions. Key specifications include a 50-ns propagation delay to output, a trimmed oscillator discharge current for accurate dead time control, and a pulse-by-pulse current limiting comparator. The device also incorporates a latched overcurrent comparator that allows for full cycle restart, enhancing fault management capabilities. The UC2825A is available in a 16-pin SOIC package and operates over a temperature range of -40¬8C to 85¬8C, making it versatile for various applications.