STMicroelectronics

UC3845BD1013TR  

DC DC Switching Controllers

The UC3845BD1013TR is a high-performance, fixed-frequency, current-mode, step-down PWM controller from STMicroelectronics. It is designed for use in a wide range of power supply applications, including computer power supplies, telecom power supplies, and LED drivers.

Description:

The UC3845BD1013TR is a monolithic integrated circuit that provides all the active functions required to implement a step-down switching regulator. It includes a current-mode control with a fixed switching frequency of 130kHz, an internal oscillator, error amplifier, reference voltage source, and protection features.

Features:

1. Fixed 130kHz switching frequency
2. Current-mode control for high efficiency and fast transient response
3. Internal oscillator for precise frequency control
4. Over-current protection to prevent damage to the power supply
5. Thermal shutdown protection to prevent overheating
6. Soft-start function to reduce inrush current
7. External compensation pin for easy adjustment of the loop response
8. Small package size for easy integration into compact power supply designs

Applications:

1. Computer power supplies
2. Telecom power supplies
3. LED drivers
4. Industrial power supplies
5. Battery chargers
6. Any other step-down power supply applications requiring high efficiency and fast transient response.

In summary, the UC3845BD1013TR is a versatile and high-performance step-down PWM controller that offers a wide range of features and applications. Its fixed switching frequency, current-mode control, and protection features make it an ideal choice for a variety of power supply applications.

UC3845BD1013TR Documents

Download datasheets and manufacturer documentation for UC3845BD1013TR

PCN :

PROCESS CHANGE NOTIFICATION (PDF)       Product / Process Change Notification (PDF)       Product Change Notification (PDF)       PRODUCT / PROCESS CHANGE INFORMATION (PDF)       Product Information Letter (PDF)