Manufacturer Part Number
UC2843BN
Manufacturer
onsemi
Introduction
High-performance DC-DC switching controller for power management applications
Product Features and Performance
Designed for step-up or step-down voltage conversion
Isolation-capable output configuration for safety and signal integrity
Supports boost and flyback topologies for versatile circuit designs
Single output with one output phase
Capable of switching frequencies up to 500kHz for efficient power conversion
Maximum duty cycle of 96% for high power efficiency
Through-hole mounting for secure and reliable PCB connections
Compatible with 7.6V to 30V supply voltages for a wide range of applications
Product Advantages
Precise frequency control to minimize electromagnetic interference
Robust thermal performance with an operating temperature range from -25°C to 85°C
Straightforward implementation conducive for mass production
Legacy product with consistent performance over time
Key Technical Parameters
Number of Outputs: 1
Output Phases: 1
Voltage - Supply (Vcc/Vdd): 7.6V ~ 30V
Frequency - Switching: Up to 500kHz
Duty Cycle (Max): 96%
Output: Transistor Driver
Function: Step-Up, Step-Up/Step-Down
Output Configuration: Positive, Isolation Capable
Topology: Boost, Flyback
Control Features: Frequency Control
Quality and Safety Features
Built-in features for stable and reliable operation
Output configuration supports isolation for safety requirements
Compatibility
Suitable for applications requiring voltage step-up or step-down
Compatible with a variety of external components for custom design flexibility
Through-hole 8-DIP package compatible with standard PCB layouts
Application Areas
Suitable for power supply modules, DC-DC converters, and other power management applications
Product Lifecycle
Obsolete - Consider potential alternatives or stock availability issues
Replacements or upgrades may be available from onsemi
Several Key Reasons to Choose This Product
Proven reliability and performance from an established manufacturer
Flexible application due to step-up and step-down functions
High-efficiency power conversion with up to 96% duty cycle
Support for high-frequency operation reduces the size of passive components
Isolation capability for applications that require electrical isolation between input and output