UC1100 Overview
The UTC UC1100 is a primary control unit for switch mode charger and adapter applications. The controlled variable is transferred by an auxiliary winding from the secondary to the primary side. The device uses Pulse Frequency Modulation (PFM) method to build discontinuous conduction mode (DCM) flyback power supplies.
UC1100 Key Features
- FEATURES
- Primary side control for rectangular constant current and
- Random frequency modulation to reduce system EMI
- Flyback topology in DCM operation
- 30mW no-load input power feasible
- Open feedback protection
- Tight CC regulation performance
- Built-in soft start
- Sub-microampere start-up current
- Short circuit protection