ARM7TDMI-S™ 32-BIT MCU with Flash, SMI, 3 std 16-bit timers, PWM timer, fast 10-bit ADC, I2C, UART, SSP, USB and CAN The **STR755FR2T6** is a **PFC and PWM controller** manufactured by **STMicroelectronics (ST)**.  

### **Key Specifications:**  
- **Type:** Switched-mode power supply (SMPS) controller  
- **Function:** Combines **Power Factor Correction (PFC)** and **Pulse-Width Modulation (PWM)** control  
- **Topology:** Quasi-resonant (QR) operation for improved efficiency  
- **Input Voltage Range:** Designed for **universal mains (85V to 265V AC)**  
- **Switching Frequency:** Adjustable, optimized for high efficiency  
- **Protection Features:**  
  - Overvoltage protection (OVP)  
  - Overcurrent protection (OCP)  
  - Thermal shutdown  
  - Brownout protection  
- **Package:** **TO-220FP (isolated tab)**  

### **Features:**  
- **High integration** (reduces external component count)  
- **Low standby power consumption**  
- **Soft-start function** for smooth power-up  
- **Frequency jittering** to reduce EMI emissions  
- **Adaptive dead-time control** for improved efficiency  

### **Applications:**  
- **AC-DC power supplies**  
- **LED drivers**  
- **Industrial and consumer power systems**  

For detailed electrical characteristics, refer to the **official ST datasheet**.

ARM7TDMI-S™ 32-BIT MCU with Flash, SMI, 3 std 16-bit timers, PWM timer, fast 10-bit ADC, I2C, UART, SSP, USB and CAN