uC3844D ,PWM Controller SOIC-14 - Off-line/Current-Mode Controller

The UC3844D is a high-performance current-mode PWM controller optimized for off-line and DC-to-DC converter applications. With its low startup current and precision error amplifier, it enhances efficiency in power supplies while ensuring reliable performance. It features pulse-by-pulse current limiting and undervoltage lockout with hysteresis, making it ideal for a range of power management applications.

Key Features :

• Low startup current (<1mA), reducing power consumption.
• Precision error amplifier with low output resistance for accuracy.
• Pulse-by-pulse current limiting for enhanced protection.
• Undervoltage lockout (UVLO) with hysteresis to prevent power instability.
• High-current totem-pole output to drive MOSFETs directly.
• Capable of operating up to 500kHz for high-frequency applications.