Manufacturer Part Number
UC3843BVD
Manufacturer
onsemi
Introduction
The UC3843BVD is a DC DC switching controller designed for power management applications, especially in Boost and Flyback topologies.
Product Features and Performance
Supports Boost, Flyback topologies
Output Type: Transistor Driver
Functionality includes Step-Up and Step-Up/Step-Down capabilities
Positive output configuration with isolation capabilities
Can handle switching frequencies up to 500kHz
Maximum duty cycle of 96%
Operates within a voltage supply range of 7.6V to 30V
Operating Temperature range: -40°C to 105°C
Frequency Control feature integrated
Product Advantages
High duty cycle for efficient power conversion
Broad voltage supply range suitable for various applications
High frequency operation enables compact power supply designs
Supports both isolated and non-isolated configurations
Key Technical Parameters
Output Phases: 1
Frequency Switching: Up to 500kHz
Voltage Supply (Vcc/Vdd): 7.6V ~ 30V
Duty Cycle (Max): 96%
Operating Temperature: -40°C to 105°C
Quality and Safety Features
Operating temperature range ensures stable performance under extreme conditions
Compatibility
Surface Mount, 14-SOIC package for compatibility with standard PCB designs
Application Areas
Used in power management circuits in consumer electronics, industrial systems, and telecommunications equipment
Product Lifecycle
Obsolete status
Users should check for replacement models or product upgrades
Several Key Reasons to Choose This Product
High switching frequency allows for smaller size of passive components, reducing overall design space
Capability to work with a wide input voltage range provides flexibility in power source selection
High maximum duty cycle ensures efficient energy conversion
Robust operating temperature range makes it suitable for a variety of challenging environments