Texas Instruments

UCC3818DTR  

Power Factor Correction ICs

The UCC3818DTR is a high-voltage, high-power, monolithic pulse-width modulator (PWM) integrated circuit (IC) manufactured by Texas Instruments. It is designed for use in a variety of power management applications, including DC-DC converters, motor control, and class D audio amplifiers.

Description:

The UCC3818DTR is a highly integrated PWM controller that offers a wide range of features and benefits for power management applications. It is available in a compact 28-pin dual-in-line package (DIP) and operates from a supply voltage range of 4.75V to 40V. The device features a fixed 50kHz switching frequency, which can be easily synchronized to an external clock for multiphase applications.

Features:

1. Wide input voltage range: 4.75V to 40V
2. Fixed 50kHz switching frequency, with external synchronization capability
3. High-power output: capable of driving external power MOSFETs with a maximum current of 10A
4. Advanced current control and protection features, including overcurrent, overtemperature, and undervoltage lockout
5. Soft-start and cycle-by-cycle current limiting for improved transient response and thermal management
6. External compensation pin for easy integration with different power stages
7. Power-save mode to reduce quiescent current during light load conditions
8. Spread spectrum modulation for reduced electromagnetic interference (EMI)
9. Wide operating temperature range: -40°C to +125°C

Applications:

1. DC-DC converters: step-down (buck), step-up (boost), and bidirectional converters
2. Motor control: brushless DC (BLDC) motors, stepper motors, and AC induction motors
3. Class D audio amplifiers: providing efficient power management and reduced heat dissipation
4. Power supplies for industrial and telecom equipment
5. Battery charging and management systems
6. LED lighting and display drivers
7. Renewable energy systems, such as solar panel power management

The UCC3818DTR is a versatile and powerful PWM controller that can be used in a wide range of power management applications. Its high-voltage capability, advanced protection features, and easy integration make it an ideal choice for designing efficient and reliable power management solutions.

UCC3818DTR Documents

Download datasheets and manufacturer documentation for UCC3818DTR

Images :

Mechanical Outline Drawing      

PCN :

Product Change Notification 2024-08-28 (PDF)      

Models :

UCC3818DTR Symbol & Footprint by SnapMagic