Texas Instruments

UC3844ADTR  

Power Supply Controllers, Monitors

The UC3844ADTR is a high-voltage, fixed-frequency current mode control PWM controller from Texas Instruments. It is designed for use in various power conversion applications, including offline power supplies, DC-DC converters, and motor control circuits.

Description:

The UC3844ADTR is a monolithic integrated circuit that provides all the necessary functions for a current mode control PWM controller. It features a high-voltage power MOSFET input stage, error amplifier, oscillator, current limit, and protection features. The device is available in a thermally enhanced 8-lead SOIC package.

Features:

1. Fixed 44 kHz switching frequency
2. High-voltage power MOSFET input stage
3. Error amplifier with external compensation
4. Internal oscillator with external frequency adjustment
5. Overcurrent protection with foldback current limiting
6. Overvoltage protection
7. Undervoltage lockout
8. Thermal shutdown
9. Soft-start function
10. Push-pull output stage with totem-pole drive

Applications:

1. Offline power supplies
2. DC-DC converters
3. Motor control circuits
4. Battery chargers
5. Inverters
6. Welding power supplies
7. Uninterruptible power supply (UPS) systems

The UC3844ADTR is a versatile and reliable PWM controller that can be used in a wide range of power conversion applications. Its fixed switching frequency, high-voltage input stage, and comprehensive protection features make it an ideal choice for designs requiring high efficiency and reliability.

UC3844ADTR Documents

Download datasheets and manufacturer documentation for UC3844ADTR

Datasheets :

UC184xA, 284xA, 384xA Series      

HTML Datasheet :

UC184xA, 284xA, 384xA Series      

PCN Design/Specification :

Mult Devices Font 21/Apr/2018       UCYYY 13/DEC/2017