SP201 Overview
SP201 is a high performance current mode PWM controller for offline flyback converter applications. The IC has built-in General Primary Side CC control, which simplifies isolated power supply design that requires CC regulation of the output. In SP201, PWM switching frequency with shuffling is fixed to 65KHz and is trimmed to tight range.
SP201 Key Features
- General Primary Side Constant-Current (CC) Control Supports DCM and CCM Operation
- ±5% CC Regulation, ±1% CV Regulation with Fast Dynamic Response
- CC Algorithm pensates for Line Variation and Transformer Inductance Tolerance
- Less than 75mW Standby Power for sub 30W Application
- Current Mode Control
- Built-in Frequency Shuffling
- Fixed 65KHz Switching Frequency
- Green Mode and Burst Mode Control
- On-chip Thermal Shutdown
- Cycle-by-Cycle Current Limiting
