REGULATING PULSE WIDTH MODULATOR The SG2525A is a pulse width modulation (PWM) controller IC manufactured by STMicroelectronics. Below are its key specifications, descriptions, and features:
### **Specifications:**
- **Manufacturer:** STMicroelectronics
- **Type:** PWM Controller IC
- **Topology:** Push-Pull, Half-Bridge, or Full-Bridge
- **Operating Voltage Range:** 8V to 35V
- **Output Current (Source/Sink):** 100mA / 200mA
- **Switching Frequency Range:** 100Hz to 500kHz
- **Duty Cycle Range:** 0% to 49% (adjustable)
- **Reference Voltage:** 5.1V (±1%)
- **Error Amplifier Gain Bandwidth:** 1MHz
- **Operating Temperature Range:** -40°C to +85°C
- **Package:** DIP-16, SO-16
### **Descriptions:**
- The SG2525A is a fixed-frequency PWM controller designed for power supply and DC-DC converter applications.
- It includes an on-chip oscillator, error amplifier, PWM comparator, latch, and output drivers.
- Provides soft-start and shutdown control for improved system reliability.
### **Features:**
- **Precision Oscillator:** Adjustable dead-time control and sync capability.
- **Error Amplifier:** High-gain, wide-bandwidth for feedback loop stability.
- **Soft-Start Function:** Reduces inrush current during startup.
- **Undervoltage Lockout (UVLO):** Ensures proper operation within voltage limits.
- **Dual Output Drivers:** Suitable for push-pull or half-bridge configurations.
- **Latching PWM:** Prevents multiple pulses during fault conditions.
- **Shutdown Pin:** Allows external control for quick system shutdown.
This information is based on STMicroelectronics' datasheet for the SG2525A.
