UC3842B High Performance Current Mode PWM Controller IC DIP 8 Package
The UC3842B is a high-performance current-mode Pulse Width Modulation (PWM) controller IC designed for switch-mode power supplies (SMPS) and DC-DC converter applications. It provides precise current control, fast transient response, and built-in protection features, making it a reliable choice for high-efficiency power designs. The DIP-8 package allows easy through-hole mounting for prototyping and production.
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Key Features
- IC Type: Current Mode PWM Controller
- Model: UC3842B
- Package: DIP-8 (Through-Hole)
- Current-mode control for improved stability
- Fixed switching frequency (set by external RC components)
- High current totem-pole output for driving MOSFETs
- Cycle-by-cycle current limiting
- Built-in under-voltage lockout (UVLO)
- Low startup current
- Maximum duty cycle up to ~97%
Typical Applications
- Switch-mode power supplies (SMPS)
- Flyback and forward converters
- AC-DC adapters and power supplies
- Battery chargers
- Industrial and embedded power systems
- DIY and educational power electronics projects
*Product image for illustration purposes only, actual product may vary.






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