5962-8768104VEA

The Texas Instruments 5962-8768104VEA is a radiation-tolerant, QML-V qualified PWM control device optimized for high-frequency switched-mode power supply applications. It is compatible with both voltage- and current-mode topologies and supports practical operation switching frequencies up to 1 MHz.

Key features include a 50-ns propagation delay to output, high-current dual totem pole outputs capable of 1.5 A peak current, and a wide bandwidth error amplifier. The device incorporates fully latched logic with double-pulse suppression, pulse-by-pulse current limiting, soft start/maximum duty-cycle control, and undervoltage lockout with hysteresis. It also boasts a low start-up current of 1.1 mA.

This controller is designed to minimize propagation delays through its comparators and logic circuitry while maximizing the bandwidth and slew rate of the error amplifier. Protection circuitry includes a current limit comparator with a 1-V threshold and a TTL-compatible shutdown port. The soft start pin also functions as a maximum duty-cycle clamp.

The UC1825-SP is housed in a 16-pin CDIP package and operates within a temperature range of -55°C to 125°C. Its rad-tolerant nature makes it suitable for demanding environments.