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KA7525B

Power Factor Correction Controller

Partnumber Manufacturer Quantity Availability
KA7525B 360 In Stock

Description and Introduction

Power Factor Correction Controller The KA7525B is a pulse width modulation (PWM) controller IC manufactured by Fairchild Semiconductor (now part of ON Semiconductor).  

### **Specifications:**  
- **Input Voltage Range:** 8V to 35V  
- **Reference Voltage Output:** 5.1V ±1%  
- **Oscillator Frequency Range:** Adjustable (typically up to 500kHz)  
- **Output Duty Cycle:** Adjustable (0% to 100%)  
- **Maximum Output Current:** 200mA (sink/source)  
- **Operating Temperature Range:** -20°C to +85°C  
- **Package Type:** DIP-16 or SOIC-16  

### **Descriptions:**  
- The KA7525B is designed for switch-mode power supply (SMPS) applications.  
- It provides precise PWM control for DC-DC converters, inverters, and motor control circuits.  
- Features include soft-start, error amplification, and adjustable dead-time control.  

### **Features:**  
- **Voltage Reference:** Built-in 5.1V precision reference.  
- **Error Amplifier:** High-gain op-amp for feedback control.  
- **Adjustable Dead Time:** Prevents shoot-through in half-bridge circuits.  
- **Soft-Start Function:** Reduces inrush current at startup.  
- **Under-Voltage Lockout (UVLO):** Ensures proper operation above minimum voltage.  
- **Synchronous Operation:** Allows multiple ICs to be synchronized.  

This IC is commonly used in power supplies, inverters, and industrial control systems.

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