Power Factor Correction (PFC) Controller The KA7525BD is a switching regulator controller IC manufactured by FAIRCHILD (Fairchild Semiconductor). Below are the specifications, descriptions, and features based on the available knowledge:
### **Specifications:**
- **Manufacturer:** FAIRCHILD (Fairchild Semiconductor)
- **Type:** Switching Regulator Controller
- **Package:** DIP-8 (Dual Inline Package)
- **Input Voltage Range:** Typically operates with an input voltage range suitable for switching regulator applications (exact range may vary based on datasheet).
- **Output Voltage:** Adjustable via external components.
- **Switching Frequency:** Fixed or adjustable (depends on external timing components).
- **Duty Cycle:** Adjustable, typically up to 90% or higher.
- **Operating Temperature Range:** Industrial-grade range (e.g., -40°C to +85°C).
### **Descriptions:**
- The KA7525BD is a pulse-width modulation (PWM) controller IC designed for switch-mode power supply (SMPS) applications.
- It is commonly used in DC-DC converters, inverters, and power supply circuits.
- The IC provides precise control over the switching frequency and duty cycle for efficient power conversion.
- It includes features like error amplification, soft-start, and protection circuits.
### **Features:**
- **PWM Control:** Adjustable duty cycle for power regulation.
- **Error Amplifier:** Built-in for feedback loop control.
- **Soft-Start Function:** Prevents high inrush current during startup.
- **Under-Voltage Lockout (UVLO):** Ensures proper operation within voltage limits.
- **Dead-Time Control:** Adjustable to prevent shoot-through in half-bridge or full-bridge topologies.
- **High Output Drive:** Suitable for driving power MOSFETs or bipolar transistors.
- **Low Standby Current:** Improves efficiency in standby mode.
For exact electrical characteristics, pin configurations, and application circuits, refer to the official Fairchild Semiconductor datasheet.
