Manufacturer Part Number
UCC3802N
Manufacturer
Texas Instruments
Introduction
The UCC3802N is a low-power, biCMOS current-mode PWM controller from Texas Instruments.
Product Features and Performance
BiCMOS current-mode PWM control
Supports Boost, Buck, Flyback, and Forward topologies
Operates at switching frequencies of up to 1MHz for flexibility in power supply design
Energy-efficient operation with a start-up voltage of only 12.5V
Vcc operating range from 8.3V to 12V suits a variety of applications
Maximum duty cycle of 99% allows precise control over output
Current limiting feature enhances protection against overcurrent conditions
Frequency control functionality for managing EMI and optimizing the transformer design
Functions optimally within a wide temperature range of -40°C to 85°C
Product Advantages
High-frequency operation allows use of smaller passive components
Versatile power supply design capabilities with multiple topologies supported
Protection features such as current limiting to prevent damage
Key Technical Parameters
Start Up Voltage: 12.5V
Supply Voltage (Vcc/Vdd): 8.3V to 12V
Duty Cycle: 99%
Switching Frequency: Up to 1MHz
Operating Temperature: -40°C to 85°C
Quality and Safety Features
Integrated current limiting for safe operation
Reliable performance across a broad temperature range
Compatibility
Suitable for designing a variety of power systems with its multi-topology support
Application Areas
Power supplies for consumer electronics
Telecom power systems
Industrial power supplies
Automotive electronics
Product Lifecycle
Obsolete product with potential issues in availability
Consider looking for replacement or upgrade options
Several Key Reasons to Choose This Product
Trusted manufacturer with a history of reliability in power management solutions
Flexible usage due to high switching frequency and support for numerous topologies
Energy-efficient operation with low start-up voltage
Robust safety features including current limiting
High duty cycle delivering precise power supply control
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