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UC3524AN from TI,Texas Instruments

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UC3524AN

Manufacturer: TI

Advanced Regulating Pulse Width Modulators

Partnumber Manufacturer Quantity Availability
UC3524AN TI 4000 In Stock

Description and Introduction

Advanced Regulating Pulse Width Modulators The UC3524AN is a pulse-width modulation (PWM) controller manufactured by Texas Instruments (TI). Below are its key specifications, descriptions, and features:  

### **Specifications:**  
- **Output Configuration:** Dual, complementary  
- **Topology:** Buck, Boost, Flyback, Forward  
- **Switching Frequency:** Up to 500 kHz  
- **Supply Voltage (VCC):** 8V to 40V  
- **Output Current (Source/Sink):** 100mA (source), 50mA (sink)  
- **Duty Cycle Range:** 0% to 45% (adjustable)  
- **Error Amplifier Gain Bandwidth:** 3 MHz  
- **Operating Temperature Range:** -25°C to +85°C  
- **Package:** 16-Pin DIP (PDIP)  

### **Descriptions:**  
The UC3524AN is a fixed-frequency PWM controller designed for DC-DC converter and power supply applications. It provides precise voltage regulation with adjustable duty cycle control and includes features for soft-start, current limiting, and shutdown protection.  

### **Features:**  
- **Fixed-Frequency Operation:** Adjustable via external timing components.  
- **Dual Output Drivers:** Push-pull configuration for driving power transistors.  
- **Voltage Reference:** 5V ±1% precision reference output.  
- **Error Amplifier:** High-gain op-amp for feedback loop control.  
- **Current Limiting:** Built-in pulse-by-pulse current limiting.  
- **Soft-Start Capability:** Reduces inrush current during startup.  
- **Undervoltage Lockout (UVLO):** Ensures proper operation under low supply conditions.  
- **Shutdown Control:** Allows external disable of the controller.  

The UC3524AN is widely used in switch-mode power supplies (SMPS), inverters, and motor control applications.

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